Subjects -> MANUFACTURING AND TECHNOLOGY (Total: 363 journals)
    - CERAMICS, GLASS AND POTTERY (31 journals)
    - MACHINERY (34 journals)
    - MANUFACTURING AND TECHNOLOGY (223 journals)
    - METROLOGY AND STANDARDIZATION (6 journals)
    - PACKAGING (19 journals)
    - PAINTS AND PROTECTIVE COATINGS (4 journals)
    - PLASTICS (42 journals)
    - RUBBER (4 journals)

MANUFACTURING AND TECHNOLOGY (223 journals)                  1 2     

Showing 1 - 73 of 73 Journals sorted alphabetically
3D Printing and Additive Manufacturing     Full-text available via subscription   (Followers: 27)
Additive Manufacturing     Hybrid Journal   (Followers: 18)
Additive Manufacturing Letters     Open Access   (Followers: 3)
Advanced Composites and Hybrid Materials     Hybrid Journal   (Followers: 2)
Advanced Industrial and Engineering Polymer Research     Open Access   (Followers: 4)
Advanced Manufacturing: Polymer & Composites Science     Open Access   (Followers: 39)
Advances in Adaptive Data Analysis     Hybrid Journal   (Followers: 9)
Advances in Industrial and Manufacturing Engineering     Open Access   (Followers: 4)
Advances in Manufacturing     Hybrid Journal   (Followers: 9)
Advances in Manufacturing Science and Technology     Open Access   (Followers: 10)
Advances in Materials and Processing Technologies     Hybrid Journal   (Followers: 1)
Advances in Technology Innovation     Open Access   (Followers: 5)
Afrique Science : Revue Internationale des Sciences et Technologie     Open Access   (Followers: 1)
American Journal of Applied Sciences     Open Access   (Followers: 22)
American Journal of Sensor Technology     Open Access   (Followers: 2)
Appita Journal: Journal of the Technical Association of the Australian and New Zealand Pulp and Paper Industry     Full-text available via subscription   (Followers: 6)
Applied Ergonomics     Hybrid Journal   (Followers: 17)
Asia Pacific Biotech News     Hybrid Journal   (Followers: 3)
Asian Journal of Applied Sciences     Open Access   (Followers: 2)
Australian Journal of Learning Difficulties     Hybrid Journal   (Followers: 9)
Australian TAFE Teacher     Full-text available via subscription   (Followers: 4)
Behavioral and Cognitive Neuroscience Reviews     Hybrid Journal   (Followers: 25)
Bio-Design and Manufacturing     Hybrid Journal  
Biomanufacturing Reviews     Full-text available via subscription  
Biotechnology     Open Access   (Followers: 7)
Biotechnology Progress     Hybrid Journal   (Followers: 39)
Bulletin of Science, Technology & Society     Hybrid Journal   (Followers: 9)
Centaurus     Hybrid Journal   (Followers: 7)
China Foundry     Open Access  
Circuit World     Hybrid Journal   (Followers: 16)
Clay Technology     Full-text available via subscription  
Cold Regions Science and Technology     Hybrid Journal   (Followers: 2)
Comparative Technology Transfer and Society     Full-text available via subscription   (Followers: 4)
Components, Packaging and Manufacturing Technology, IEEE Transactions on     Hybrid Journal   (Followers: 27)
Composites Science and Technology     Hybrid Journal   (Followers: 158)
Computer-Aided Design and Applications     Hybrid Journal   (Followers: 6)
Conference Quality Production Improvement     Open Access  
Control Theory and Informatics     Open Access   (Followers: 9)
Control Theory and Technology     Hybrid Journal   (Followers: 2)
Cryoletters     Full-text available via subscription   (Followers: 4)
Current Protocols in Essential Laboratory Techniques     Full-text available via subscription  
Current Research in Nanotechnology     Open Access   (Followers: 23)
Decision Making : Applications in Management and Engineering     Open Access   (Followers: 1)
Decision Making in Manufacturing and Services     Open Access   (Followers: 2)
Design Journal : An International Journal for All Aspects of Design     Hybrid Journal   (Followers: 33)
Design Studies     Hybrid Journal   (Followers: 34)
Economics of Innovation and New Technology     Hybrid Journal   (Followers: 19)
Emerging Materials Research     Hybrid Journal   (Followers: 1)
Environmental Technology     Hybrid Journal   (Followers: 2)
Fibers     Open Access   (Followers: 4)
Fibers and Polymers     Full-text available via subscription   (Followers: 4)
Foresight     Hybrid Journal   (Followers: 7)
FORMakademisk - forskningstidsskrift for design og designdidaktikk     Open Access   (Followers: 2)
Futures     Hybrid Journal   (Followers: 15)
Gender, Technology and Development     Hybrid Journal   (Followers: 14)
Green Materials     Hybrid Journal   (Followers: 3)
History and Technology: An International Journal     Hybrid Journal   (Followers: 11)
History of Science and Technology     Open Access   (Followers: 2)
Human Factors in Design     Open Access   (Followers: 10)
i+Diseño : Revista científico-académica internacional de Innovación, Investigación y Desarrollo en Diseño     Open Access  
IEEE Engineering in Medicine and Biology Magazine     Full-text available via subscription   (Followers: 6)
IEEE Open Journal of Nanotechnology     Open Access   (Followers: 1)
IET Collaborative Intelligent Manufacturing     Open Access   (Followers: 1)
IETE Journal of Research     Open Access   (Followers: 10)
IETE Technical Review     Open Access   (Followers: 9)
IFAC Journal of Systems and Control     Hybrid Journal   (Followers: 1)
Indian Journal of Radio & Space Physics (IJRSP)     Open Access   (Followers: 49)
Información Tecnológica     Open Access  
Innovation: Management, Policy & Practice     Hybrid Journal   (Followers: 16)
Innovation: The European Journal of Social Science Research     Hybrid Journal   (Followers: 10)
Innovations : Technology, Governance, Globalization     Hybrid Journal   (Followers: 10)
Integrating Materials and Manufacturing Innovation     Open Access   (Followers: 7)
International Journal for Quality Research     Open Access   (Followers: 4)
International Journal for the History of Engineering and Technology     Hybrid Journal   (Followers: 2)
International Journal of Additive and Subtractive Materials Manufacturing     Hybrid Journal   (Followers: 8)
International Journal of Advanced Design and Manufacturing Technology     Open Access   (Followers: 7)
International Journal of Automation and Logistics     Hybrid Journal   (Followers: 3)
International Journal of Bifurcation and Chaos     Hybrid Journal   (Followers: 4)
International Journal of Business and Systems Research     Hybrid Journal   (Followers: 1)
International Journal of Concrete Technology     Full-text available via subscription   (Followers: 1)
International Journal of Design     Open Access   (Followers: 24)
International Journal of Design Creativity and Innovation     Hybrid Journal   (Followers: 2)
International Journal of Digital Enterprise Technology     Hybrid Journal   (Followers: 1)
International Journal of Embedded Systems and Emerging Technologies     Full-text available via subscription   (Followers: 3)
International Journal of Energy Technology and Policy     Hybrid Journal   (Followers: 6)
International Journal of Engineering and Manufacturing     Open Access   (Followers: 3)
International Journal of Engineering Materials and Manufacture     Open Access   (Followers: 2)
International Journal of Experimental Design and Process Optimisation     Hybrid Journal   (Followers: 5)
International Journal of Information Acquisition     Hybrid Journal   (Followers: 1)
International Journal of Innovation and Technology Management     Hybrid Journal   (Followers: 10)
International Journal of Innovation Science     Hybrid Journal   (Followers: 9)
International Journal of Instructional Technology and Educational Studies     Open Access   (Followers: 1)
International Journal of Intelligent Transportation Systems Research     Hybrid Journal   (Followers: 13)
International Journal of Law and Information Technology     Hybrid Journal   (Followers: 7)
International Journal of Learning Technology     Hybrid Journal   (Followers: 8)
International Journal of Lightweight Materials and Manufacture     Open Access  
International Journal of Manufacturing Engineering     Open Access   (Followers: 4)
International Journal of Manufacturing, Materials, and Mechanical Engineering     Full-text available via subscription   (Followers: 17)
International journal of materials research     Full-text available via subscription   (Followers: 2)
International Journal of Mathematical Education in Science and Technology     Hybrid Journal   (Followers: 9)
International Journal of Nano and Biomaterials     Hybrid Journal   (Followers: 8)
International Journal of Physical Modelling in Geotechnics     Hybrid Journal   (Followers: 4)
International Journal of Planning and Scheduling     Hybrid Journal   (Followers: 2)
International Journal of Power and Energy Systems     Full-text available via subscription   (Followers: 1)
International Journal of Precision Engineering and Manufacturing-Green Technology     Hybrid Journal   (Followers: 2)
International Journal of Production Management and Engineering     Open Access   (Followers: 4)
International Journal of Quality and Innovation     Hybrid Journal   (Followers: 6)
International Journal of Quality Engineering and Technology     Hybrid Journal   (Followers: 4)
International Journal of Service and Computing Oriented Manufacturing     Hybrid Journal   (Followers: 2)
International Journal of Social and Humanistic Computing     Hybrid Journal  
International Journal of System of Systems Engineering     Hybrid Journal   (Followers: 3)
International Journal of Technoentrepreneurship     Hybrid Journal   (Followers: 1)
International Journal of Technological Learning, Innovation and Development     Hybrid Journal   (Followers: 6)
International Journal of Technology and Design Education     Hybrid Journal   (Followers: 11)
International Journal of Technology and Globalisation     Hybrid Journal   (Followers: 3)
International Journal of Technology Intelligence and Planning     Hybrid Journal  
International Journal of Technology Management     Hybrid Journal   (Followers: 4)
International Journal of Technology Marketing     Hybrid Journal   (Followers: 3)
International Journal of Technology Transfer and Commercialisation     Hybrid Journal   (Followers: 2)
International Journal of Technology, Policy and Management     Hybrid Journal   (Followers: 2)
International Journal of Telecommunications & Emerging Technologies     Full-text available via subscription   (Followers: 1)
International Journal of Vehicle Autonomous Systems     Hybrid Journal  
International Journal of Vehicle Design     Hybrid Journal   (Followers: 6)
International Wood Products Journal     Hybrid Journal   (Followers: 1)
Invention Disclosure     Open Access   (Followers: 1)
ITL - International Journal of Applied Linguistics     Full-text available via subscription   (Followers: 15)
Journal of Analytical Science & Technology     Open Access   (Followers: 4)
Journal of Applied Sciences     Open Access   (Followers: 4)
Journal of Control & Instrumentation     Full-text available via subscription   (Followers: 18)
Journal of Design Research     Hybrid Journal   (Followers: 15)
Journal of Energy, Mechanical, Material and Manufacturing Engineering     Open Access   (Followers: 3)
Journal of Engineered Fibers and Fabrics     Open Access  
Journal of Enterprise Transformation     Hybrid Journal   (Followers: 1)
Journal of Hazardous Materials Advances     Open Access  
Journal of High Technology Management Research     Hybrid Journal   (Followers: 2)
Journal of Industrial and Production Engineering     Hybrid Journal   (Followers: 4)
Journal of large-scale research facilities JLSRF     Open Access  
Journal of Manufacturing and Materials Processing     Open Access  
Journal of Materials Science Research     Open Access   (Followers: 8)
Journal of Micro-Bio Robotics     Hybrid Journal  
Journal of Micromanufacturing     Hybrid Journal  
Journal of Nanobiotechnology     Open Access   (Followers: 4)
Journal of Operations and Supply Chain Management     Open Access   (Followers: 6)
Journal of Production Research & Management     Full-text available via subscription   (Followers: 3)
Journal of Remanufacturing     Open Access   (Followers: 3)
Journal of Scientific and Industrial Research (JSIR)     Open Access   (Followers: 10)
Journal of Sensor Technology     Open Access   (Followers: 3)
Journal of Sensors and Sensor Systems     Open Access   (Followers: 12)
Journal of Sustainable Metallurgy     Hybrid Journal   (Followers: 4)
Journal of Technological Possibilism     Open Access  
Journal of Technology in Human Services     Hybrid Journal   (Followers: 3)
Journal of Technology Management for Growing Economies     Open Access   (Followers: 3)
Journal of Technology Management in China     Hybrid Journal   (Followers: 1)
Journal of the Chinese Institute of Industrial Engineers     Hybrid Journal  
Journal of The Royal Society Interface     Full-text available via subscription   (Followers: 9)
Journal of Urban Technology     Hybrid Journal   (Followers: 5)
Journal of Urban Technology and Sustainability     Open Access  
Jurnal Energi Dan Manufaktur     Open Access  
Lasers in Manufacturing and Materials Processing     Full-text available via subscription   (Followers: 2)
Leibniz Transactions on Embedded Systems     Open Access  
Lightweight Design     Hybrid Journal   (Followers: 4)
Management and Production Engineering Review     Open Access   (Followers: 1)
Manufacturing Letters     Full-text available via subscription   (Followers: 2)
Manufacturing Review     Open Access   (Followers: 1)
Manufacturing Science and Technology     Open Access   (Followers: 3)
Materials Circular Economy     Hybrid Journal  
Materials Science and Engineering: B     Hybrid Journal   (Followers: 22)
Materials testing. Materialprüfung     Full-text available via subscription   (Followers: 4)
MECCA Journal of Middle European Construction and Design of Cars     Open Access  
Mechanics of Soft Materials     Hybrid Journal  
Métodos y Materiales     Open Access   (Followers: 1)
Micro and Nanostructures     Full-text available via subscription   (Followers: 5)
Microgravity Science and Technology     Hybrid Journal   (Followers: 4)
Modern Electronic Materials     Open Access   (Followers: 1)
Multimodal Transportation     Open Access   (Followers: 4)
Nano Select     Open Access  
NanoEthics     Hybrid Journal  
Nanomanufacturing and Metrology     Hybrid Journal   (Followers: 2)
Nature Biotechnology     Full-text available via subscription   (Followers: 531)
NDT & E International     Hybrid Journal   (Followers: 225)
New Techno-Humanities     Open Access   (Followers: 1)
Nonconventional Technologies Review     Open Access  
Perspectives on Global Development and Technology     Hybrid Journal  
Plastics, Rubber and Composites     Hybrid Journal   (Followers: 9)
Procedia CIRP     Open Access   (Followers: 2)
Production & Manufacturing Research     Open Access   (Followers: 2)
Progress in Additive Manufacturing     Hybrid Journal   (Followers: 8)
Progress in Rubber, Plastics and Recycling Technology     Hybrid Journal   (Followers: 1)
Reliability Engineering & System Safety     Hybrid Journal   (Followers: 18)
Remote Sensing Letters     Hybrid Journal   (Followers: 46)
Research Papers Faculty of Materials Science and Technology Slovak University of Technology     Open Access   (Followers: 3)
Revista de Ciências Exatas e Tecnologia     Open Access  
Revista Produção Online     Open Access  
Science and Technology of Advanced Materials     Open Access   (Followers: 7)
Science China Materials     Hybrid Journal   (Followers: 1)
Scientia Canadensis: Canadian Journal of the History of Science, Technology and Medicine / Scientia Canadensis : revue canadienne d'histoire des sciences, des techniques et de la médecine     Open Access   (Followers: 4)
Strategic Design Research Journal     Open Access   (Followers: 1)
Structural Health Monitoring     Hybrid Journal   (Followers: 6)
Superhero Science and Technology     Open Access   (Followers: 3)
Sustainability and Climate Change     Full-text available via subscription   (Followers: 11)

        1 2     

Similar Journals
Journal Cover
Journal of Sustainable Metallurgy
Number of Followers: 4  
 
  Hybrid Journal Hybrid journal (It can contain Open Access articles)
ISSN (Print) 2199-3823 - ISSN (Online) 2199-3831
Published by Springer-Verlag Homepage  [2469 journals]
  • A Combined Approach for Green Supply Chain Management Performance
           Measurement in a Steel Manufacturing Company: An Indonesian Case

    • Free pre-print version: Loading...

      Abstract: The purpose of this research is to provide a complete method for measuring the performance of green supply chain management (GSCM) in the steel manufacturing sector using a combined approach. This study is conducted on an integrated system based on four things: the design of the GSCM performance measurement model based on the Seven Sink Performance Model, weighing performance indicators using the analytical network process, the objective matrix method to measure performance assessment, and the traffic light system method to help identify critical indicators. According to the findings of the study, energy consumption is the most important factor that leads to GSCM application success in an Indonesian steel manufacturing company. The proportion of reusable materials is the smallest and most important performance metric that has to be improved. The suggested methodology may be used by steel company supply chain managers to assess and enhance GSCM performance. The suggested approach is verified by a case analysis at an Indonesian steel manufacturing company. Graphical
      PubDate: 2022-06-22
       
  • Investigation of the Hydrogen-Rich Reduction of Panzhihua Ilmenite
           Concentrate Pellets

    • Free pre-print version: Loading...

      Abstract: The hydrogen-rich reduction of ilmenite concentrates has a significant effect on the reduction of the carbon footprint of the titanium slag production process. This study investigates the hydrogen-rich reduction of Panzhihua ilmenite concentrate pellets. The pellets were roasted at 500, 700, 900, and 1100 °C and used as the raw material for the reduction process. The effects of the pellet roasting temperature, magnetite concentrate content of the pellets, reduction temperature, and reducing gas composition on the reduction process were experimentally studied. The results showed that the average reduction rate is affected by the phase and dense structure of the pellet, reduction temperature, and hydrogen content. Further, the reduction process can be accelerated by increasing the H2 content and reduction temperature. The high compressive strength of the pellet, owing to its dense inner structure, is not conducive for the reduction process. Moreover, studies show that the H2/CO ratio has negligible effects on the reduction mechanism. The reaction mechanism of the pellet reduction process is three-dimensional diffusion. Furthermore, the effect of the pellet phase on the hydrogen-rich reduction process has been discussed. Graphical
      PubDate: 2022-06-17
       
  • Crystallization Characteristics and Properties of Glass Ceramics Derived
           from Iron Tailing

    • Free pre-print version: Loading...

      Abstract: In this study, iron tailings were used as raw materials mixing with Al2O3, SiO2, and/or CaO sintered at 950–1400 °C to produce glass ceramics. In Al2O3/tailing and Al2O3/SiO2/tailing systems, the newly formed crystalline mullite (3Al2O3·2SiO2) reached its maximum content of 83.7 wt% for sample with Al2O3/SiO2/tailing mass ratio of 6/2/2. In Al2O3/SiO2/CaO/tailing system, the content of newly formed anorthite (CaAl2Si2O8) increased to the maximum of 72.9 wt% for sample with Al2O3/SiO2/CaO/tailing mass ratio of 7/8/4/6 sintered at 1450 °C. The properties of glass ceramic products were significantly improved in samples with high content of crystalline mullite or anorthite and low surface porosity. Obtained glass ceramic in Al2O3/SiO2/tailing system with mass ratio of 6/2/6 showed excellent properties of chemical resistance (99.99%), compressive strength (1061.6 MPa), and low water absorption (0.2%). The high performance of glass ceramics and low leachability of hazardous metals shed light on the potential application of iron tailings in building and decorative materials. Graphical
      PubDate: 2022-06-17
       
  • Design and Fluidity Research of a New Tundish Flux for Rare Earth Steel

    • Free pre-print version: Loading...

      Abstract: A new CaO–Al2O3–Ce2O3–MgO–SiO2 tundish flux for rare earth steel has been presented in the current study based on the phase diagram and iso-activity diagram. The effect of Ce2O3 content and w(CaO)/w(Al2O3) on the melting temperature, viscosity, and crystalline phase was investigated. Results indicated that with the increasing Ce2O3 content and w(CaO)/w(Al2O3), the viscosity and melting temperature decreased, whereas the breaking temperature exhibited the opposite tendency. When the Ce2O3 content increased from 5 to 9 wt%, the crystalline phase began to precipitate. The Ce2O3 content further increases to 17 wt%, the crystalline phase changed from CaCeAl3O7 to CaCeAl3O7 and CeAlO3. The crystalline phase changed from CaCeAl3O7 to Ca3Al2O6, CaCeAl3O7, and MgO as the w(CaO)/w(Al2O3) increased from 0.9 to 1.3. The best range of the compositions of the low-reactivity tundish flux was w(CaO)/w(Al2O3) = 1–1.3, MgO = 5 wt%, SiO2 = 5 wt%, Ce2O3 = 0–10 wt%. The melting temperature was in the range of 1300–1320 °C, and the viscosity at 1500 °C was in the range of 0.18–0.45 Pa·s. The compositions were suitable for the development of sustainable metallurgy. Graphical
      PubDate: 2022-06-17
       
  • Synergetic Utilization of Zinc-Bearing Dust by Carbothermic
           Reduction-Roasting Process: Phase Transformation and Morphological
           Evolution

    • Free pre-print version: Loading...

      Abstract: An economic and effective strategy synchronously utilizing blast furnace bag dust (BF-BD) and converter-removing dust (C-RD) by carbothermic reduction roasting is reported to achieve separation and recovery of iron and zinc. In this paper, the effect of operating parameters on the recovery rate and remove rate of Fe and Zn from BD and GD was initially studied by synergetic carbothermic roasting reduction. The optimized parameters include a reduction temperature pf 1200 °C, a reduction time of 90 min, a FC/O of 2.0, and a proportion of C-RD/BF-BD of 7:3, and the removal efficiency of Zn and metallization degree of Fe reached 98.35% and 90.58%, respectively. The phase transformation and stepwise reduction behavior of wüstite (ZnO)x(FeO)1−x, spinel ZnxFe1−xAl2O4, olivine ZnxFe2−xSiO4, and gehlenite ZnzFe2−xSiAl2O7 are systematically investigated by SEM–EDS, XRD, TG/DTG, and thermodynamic analyses. It was found that the formation of wüstite (ZnO)x(FeO)1−x as an intermediates plays an crucial role in the formation of metallic Zn–Fe–C alloy. Phase transformation and reduction mechanisms of C-RD and BF-BD and the interfacial reaction formation mechanism of wüstite (ZnO)x(FeO)1−x were discussed and clarified in synergistic carbothermic reduction process. Graphical
      PubDate: 2022-06-15
       
  • Sustainable Applications for Disposal of Recycled Aluminum: A Systematic
           Literature Review Using the SciMAT Software

    • Free pre-print version: Loading...

      Abstract: This review aims to carry out a scientific review of the current status of aluminum can recycling processes over the last 15 years, seeking to find sustainable applications for its destination. Thus, the research topics were defined by the identification of the structure of the scientific field of research and the relationship of aluminum recycling, casting processes, and formation of aluminum-based alloys, as well as their applications. Therefore, three topics were studied: the state of the art of aluminum recycling practices; processes being performed and aluminum casting techniques and methods; and the current state of formation of secondary aluminum-based alloys, the alloy elements being used, and their applications after the formation of alloys. Based on the above three topics, the research topics include (A) aluminum recycling, (B) casting processes, and (C) the formation of aluminum-based alloys and their applications. For bibliometric analysis, the software SciMAT was applied. Through the overlaid map and the evolution map, it was possible to detect the temporal evolution of the scientific field in the researched area. Cluster analysis allowed us to identify the motor words. Through the connections network, keywords connected to the motor themes were verified that indicated the connection areas of the research field and the main authors. The simulation models were factors of innovation in the area, as well as the software packages ANSYS and ProCAST. In the area of alloy formation, the liquid metal cleaning analyzer technique was highlighted in the production of high-quality alloys. The important connections to aluminum recycling feasibility are presented in this review. Graphical
      PubDate: 2022-06-13
       
  • Efficient Utilization of Carbon-Bearing Dusts in Composite Agglomeration
           Process for Iron Ore Sintering

    • Free pre-print version: Loading...

      Abstract: This study focused on improving recycling of carbon-bearing dusts from integrated steel plants by the composite agglomeration process (CAP), in which four types of the dusts were prepared as pelletized feed, while the other raw materials were used as matrix feed for sintering to produce agglomeration product as a substitute for traditional iron ore sinter. It was found that the carbon distribution in the pelletized feed and matrix feed and segregation of pelletized feed in the burden layer strongly affected the process. When the total carbon content of the feeds was 3.22 wt%, the proper carbon content ratio of pelletized feed to matrix feed was 1.65–2.48. At this moment, optimizing the segregation of pelletized feed which contained 6.64 wt% carbon (named DP-4) in the sintering burden layer would improve the quality indexes of agglomeration product with higher carbon utilization efficiency, i.e., lower total carbon consumption. Graphical
      PubDate: 2022-06-10
       
  • Leaching Behavior of Scandium from Limonitic Laterite Ores Under Sulfation
           Roasting–Water Leaching

    • Free pre-print version: Loading...

      Abstract: In the present study, the leaching behavior of scandium from limonitic laterites under sulfation roasting–water leaching (SAL) was explored. The mineralogical analysis of limonitic laterites showed that scandium was associated with the iron phase. The roasting temperature played an important role in the iron phase conversion during the sulfation roasting process. With an increase in the roasting temperature from 100 to 800 °C, the iron phase (goethite, magnetite, and hematite) gradually converted to monoclinic Fe2(SO4)3 (400 °C), then to rhombohedral Fe2(SO4)3 (600 °C), and finally to hematite (800 °C). Due to the iron phase conversion mechanism, the leaching efficiency of scandium gradually increased first and then decreased with the increase of roasting temperature from 100 to 800 °C. When limonitic laterites roasted at temperature of 600 °C for 2 h with sulfuric acid/laterite ratio of 1/4 (mL/g), a total of 81.15% of scandium and only 0.37% of iron were extracted into leaching solution at 30 °C with the liquid-to-solid ratio of 4:1 (mL/g) for 1 h with agitation. The SAL process enables the selective and efficient enrichment of scandium from low-grade limonitic laterites with lower costs for equipment and operation compared to high-pressure acid leaching (HPAL), lower acid consumption, and lower dissolution of iron compared to atmospheric pressure acid leaching (AL). Graphical
      PubDate: 2022-06-10
       
  • Transforming a Carbon Rich Metallurgical Residue from a Sponge Iron
           Production into a Hydraulic Binder

    • Free pre-print version: Loading...

      Abstract: This paper explores the possibility to convert a metallurgical residue from a sponge iron production (MR) with approximately 20 wt% amorphous carbon into a hydraulic binder. The challenge lies in developing an industrially-realistic, simple and robust process that exploits the characteristics of the residue, instead of trying to introduce the residue in an existing process. In the first stage the goal was to direct the chemistry of MR towards a “classical” ordinary Portland cement (OPC) clinker composition, while in the second stage the goal was to develop a process in which the carbon from the mixture would be used as a fuel to reach the desired temperature. Lab scale experiments have shown that the heat treated MR with 37 wt% CaCO3 contained, among others, all four cement clinker phases (i.e. C2S, C3S, C4AF and C3A). Upscaling experiments by means of sintering pan have further proven that such a material could be sintered in large quantities, while the energy from C burning was sufficient to achieve the required sintering temperature range (1000 – 1300 °C). The produced material consisted mainly of β-C2S, C3S, C4AF and C3A, and reached 28th day compressive strength of 28 MPa. This value is somehow lower than that of CEM I 32.5 N, yet the binder can be used in low- or non-load bearing applications. Graphical
      PubDate: 2022-06-07
       
  • Chromium Stabilization in Ferrochromium Slag for its Utilization as
           Aggregate Material

    • Free pre-print version: Loading...

      Abstract: Ferrochromium slag is a by-product of ferrochromium production via the smelting of chromite ores. The mechanical properties of this slag make it a potential material to be used as an inexpensive construction material, the utilization of which can reduce the use of natural resources. Despite its potential use, ferrochromium slag is treated as a waste due to environmental and health concerns regarding the leaching of its heavy metal content, the most concerning of which is carcinogenic chromium (VI). Research has shown that the spinel phase in ferrochromium slag stabilizes chromium by trapping it in the spinel structure and preventing its leaching to the environment. This study investigates the effect of heat treatment and composition change on spinel formation in ferrochromium slag and subsequently on the stabilization of chromium. Slag samples of the MgO–Al2O3–SiO2–CaO–FeO–Cr2O3 system were synthesized at 1650 °C for 10 h in a vertical tube furnace. Samples were heat treated after synthesis by holding them at 1400, 1475, and 1550 °C for 12 h before quenching. Leaching tests on heat-treated slag samples reveal that samples held at 1400 °C have the lowest chromium leachability. With a holding temperature of 1400 °C, slag samples were prepared with variations in Al2O3 content in the range of 0–20%. Higher Cr leaching is observed from samples as the Al2O3 content increases. Similar heat-treated samples were prepared with constant Al2O3 content and basicity (CaO/SiO2) varying from 0.3 to 0.7. An increase in basicity increases the amount of Cr released from the samples during leaching experiments. Graphical
      PubDate: 2022-06-03
       
  • Recovery of Cu and Ni in Electroplating Sludge by a Low-Temperature
           Alkaline Smelting Technique

    • Free pre-print version: Loading...

      Abstract: Serious concerns have been raised from the solid waste processing field about minimizing the environmental footprint of electroplating sludge (ES), not only because of its hazardousness but also due to the rising demand for recycling non-renewable metal resources. A low-temperature alkaline matte smelting process is proposed in the present study. Na2CO3 was used as a flux reagent for smelting ES at 1250 °C, which is 100–250 °C lower than those previously reported. XRD and SEM–EDS revealed that the presence of Na species in the matte and slag phases was conducive to reducing the smelting temperature. The relationship between the processing parameters, i.e., Na2CO3, coal powder, and sulfur dosages, and the partitioning of Cu, Ni, and Cr were investigated for optimal metal recovery. A copper–nickel matte (Cu + Ni = 46.9 wt%) was produced. Cu and Ni recovery achieved 95% and 90%, respectively, while over 99% Cr was concentrated in the slag. The TCLP test indicated that heavy metal leaching toxicities of the slag were below the Chinese national identification standards (GB5085.3-2007) due to the formation of stable spinel phases and embedment of heavy metals in the glassy slag matrix. Graphical
      PubDate: 2022-06-02
       
  • Kinetic Investigation of Initial Oxidative Dissolution of Pyrite in
           Alkaline Media (pH 9–12) and Influence of Ca and Mg: A Fundamental Study
           for Pyrite Depression in Froth Flotation

    • Free pre-print version: Loading...

      Abstract: Froth flotation is a common mineral processing technique that is used to remove low economic gangue minerals, such as pyrite, from ore. The main hydrophilization mechanism on the pyrite surface is explained by the formation of hydrophilic iron (Fe) hydroxide and its complexation with calcium (Ca) and magnesium (Mg) ions; however, few quantitative results are available to determine the best physico-chemical condition to depress pyrite floatability. Fe-hydroxide formation, i.e., oxidative dissolution on a pyrite surface, is a kinetically control reaction; thus, this study investigated the short-term pyrite oxidation rate (~ 360 min) and the influence of the copresence of Ca and Mg under alkaline pH conditions (9, 10.5, and 12) as a fundamental study to establish optimal flotation and/or pre-treatment conditions for pyrite depression. The oxidative dissolution rates of pyrite increased after 120–150 min of reaction compared with the first reaction time: the rate constant (log k) increased from − 10.08 to − 9.5 in the absence of Ca and Mg. X-ray photoelectron spectroscopy analysis results showed that the formation of Fe1−xS2 became the dominant reaction in the first reaction stage; thereafter, S–S bond cleavage in the second reaction stage resulted in the acceleration of pyrite decomposition. Smaller rate constants resulted for the Ca and Mg solutions because of the formation of Ca and Mg hydroxides under alkaline conditions. However, this decrease in oxidation rate could influence the pyrite surface hydrophilization less, and hydrophilization has become the main reason for pyrite depression enhancement. Graphical
      PubDate: 2022-06-01
       
  • Characterization and In Situ Abatement of SOx, NOx, and PCDD/Fs in Iron
           Ore Sinter Machine Wind Legs

    • Free pre-print version: Loading...

      Abstract: It was observed that the oxides of sulfur and nitrogen (SOx and NOx), in large concentrations, were getting released from certain wind boxes of the sinter machine. The deposits in the wind legs were characterized and particulates with spherical, cubical, needle, and bar-like morphologies containing K, Na, and Cl were noticed. Nitrogen-based solids were found in clutter-like morphology. Some particles had a mixture of the above, SOx and NOx. These deposits were dissolved at room temperature in the solutions of sodium bicarbonate, urea, and di-sodium borate deca-hydrate (borax) in water to estimate the absorbance of K, Na, Cl, Ca, Mg, S, and N-based compounds. The solution of sodium bicarbonate did not capture NOx. SOx and NOx were not present in the filtrates of urea and borax. A solution of sodium bicarbonate in water 1% v/v was sprayed into a wind box and found that SOx had got reduced by 90% and NOx by about 55%. To maximize the capture of SOx and NOx, the solution was optimized at 2% v/v and found that both SOx and NOx had got reduced by 90%. A deposit from the electrostatic precipitator (ESP) was dissolved in acetone, hexane, and toluene and found that polychlorinated dibenzo para-dioxins and polychlorinated dibenzofurans (PCDD/Fs) have got broken down. Injecting nitrogen where PCDD/Fs are released is also suggested as an economical solution. Graphical
      PubDate: 2022-06-01
       
  • Integrated Utilization of Vanadium-Titanium Magnetite Tailings for
           Synthesis of Lightweight Foamed Ceramics: Effect of Chemical Composition
           on the Properties and Phase Evolution

    • Free pre-print version: Loading...

      Abstract: Lightweight foamed ceramics were prepared using 55 wt.% vanadium-titanium magnetite tailings (VTMT) followed by sintering at 1130 °C. In the CaO-MgO-SiO2-Al2O3 foamed ceramic quaternary system, the CaO and SiO2 components play an important role in adjusting material properties and controlling phase transition. In this work, the effect of SiO2 and CaO content as additives on the tailings-based foamed ceramics properties, phase evolution, pore structure, and microstructure were systematically investigated. The results revealed that the bulk density of the samples increased with increasing CaO content. A small amount of CaO content accelerated the foaming of the samples but higher CaO contents (more than 2 wt.%) inhibited bubble growth by an increased formation of diopside (CaMgSi2O6) and other crystals with high melting temperature. Meanwhile, the amount of diopside increased from 33.56 wt.% to 74.68 wt.% with increasing CaO content, as determined by Rietveld refinement. The excessive addition of SiO2 negatively affected the number of pores, reduced pore interconnectivity, and resulted in lower average pore sizes. Moreover, samples with excessive SiO2 also displayed higher bulk density and lower open porosity. This study provides an important reference for the regulation of major chemical components for preparing solid waste-based foamed ceramics. Graphical
      PubDate: 2022-06-01
       
  • One-Step Solvometallurgical Process for Purification of Lithium Chloride
           to Battery Grade

    • Free pre-print version: Loading...

      Abstract: The use of lithium in manufacturing of lithium-ion batteries for hybrid and electric vehicles, along with stringent environmental regulations, have strongly increased the need for its sustainable production and recycling. The required purity of lithium compounds used for the production of battery components is very high (> 99.5%). In this work, a solvometallurgical process that exploits the differences in solubility between LiCl and other alkali and alkaline-earth chlorides and hydroxides in ethanolic solutions has been investigated for the purification of LiCl to battery grade at room temperature. A closed-loop flowsheet based on the green solvent ethanol is proposed for purification of LiCl, a precursor for battery-grade LiOH·H2O. High-purity LiCl solution (> 99.5% Li) could be obtained in a single-process step comprising the simultaneous selective dissolution of LiCl and the precipitation of Mg(OH)2 and Ca(OH)2 using LiOH·H2O in 95 vol% ethanol. However, the analogous process in aqueous solution resulted in impure LiCl (typically less than about 75%). Graphical
      PubDate: 2022-05-23
       
  • Steelmaking Slag as a Valuable Industrial Waste in the Preparation of
           5-Substituted-1H-Tetrazoles on Water

    • Free pre-print version: Loading...

      Abstract: The steelmaking slag (SMS) is a by-product of steelmaking factories and a valuable industrial waste, which is a heterogeneous mixture of some common metal oxides such as SiO2, Al2O3, Fe2O3, CaO, and MgO. The SMS is a readily available, non-toxic, environmentally friendly, thermally stable, and reusable magnetic heterogeneous catalyst that can be easily handled and it showed a good magneto-catalytic performance. In this work, a successful and versatile water preparation of 5-substituted-1H-tetrazoles in the presence of steelmaking slag as a catalyst is reported via click reaction. A series of aliphatic and aromatic nitriles underwent via [3 + 2] cycloaddition reaction with sodium azide under standard conditions to afford a diverse array of 5-substituted-1H-tetrazoles in good to excellent yields. The reactions occur at almost low reaction times, with no need of inert reaction conditions and avoids usage or formation of any potentially toxic or explosive chemicals. The SMS catalyst was characterized by FT-IR spectroscopy, powder X-ray diffraction, energy‐dispersive X‐ray mapping and scanning electron microscopy, and X-ray fluorescence techniques. Moreover, the procedure is simple, cost effective, and reliable that holds potential for further applications in organic syntheses and industrial requirements. Graphical
      PubDate: 2022-05-23
       
  • Alternative Method for Treating Electric Arc Furnace Dust: Simulation and
           Life Cycle Assessment

    • Free pre-print version: Loading...

      Abstract: The technical and environmental aspects of treating electric arc furnace dust (EAFD) using a novel process including alkaline roasting and organic acid leaching were evaluated and compared to the globally applied conventional Waelz process. The global warming potentials of the roasting–organic acid leaching process (with co-product credits) and the Waelz processes were 7.48 and 4.71 kg CO2-eq with 33% Zn dust as the feed material. However, with decreasing Zn content, the novel process become environmentally more competitive, and with 12% Zn, the corresponding GWP values were 6.31 and 9.26 kg CO2-eq. Co-product recovery decreased the net environmental impacts from the processing of the dust, which gave some benefits to the novel process. The Waelz process was observed to be energy intensive; however, the high consumption of leaching and roasting chemicals was the issue in the novel process. The excess caustic soda in the roasting step was observed to be a significant factor in the overconsumption of the organic acid in the leaching stage, and therefore, optimization of the roasting step is crucial. Other ways to decrease leaching chemical consumption include investigating the possibility to reuse the raffinate in leaching, or scrubbing the leach calcine from acid-consuming alkali. Evaluating the impacts of novel processes early enables iterative and agile process development and the directing the focus on the problem areas. Graphical
      PubDate: 2022-05-23
       
  • Correction to: Analysis of the Theoretical and Practical Energy
           Requirements to Produce Iron and Steel, with Summary Equations that Can Be
           Applied in Developing Future Energy Scenarios

    • Free pre-print version: Loading...

      PubDate: 2022-05-13
       
  • Wettable TiB2 Cathode for Aluminum Electrolysis: A Review

    • Free pre-print version: Loading...

      Abstract: Titanium diboride (TiB2) is considered a promising material for wettable cathodes in aluminum electrolysis. The demand for wettable cathodes is associated with the development of inert anode technologies to eliminate CO2 emissions caused by the conventional aluminum reduction process. Titanium diboride has been given special attention due to its superior properties, such as high wettability, good electrical conductivity, wear resistance, and excellent chemical stability. In this paper, we discuss different synthesis techniques used for the preparation of TiB2 cathode material. The main methods are sintering, electrodeposition, and plasma spraying. Electrodeposition is considered to be the most reliable low-cost method for TiB2 preparation. The vertical anode–cathode distance can be reduced by introducing wetted TiB2 cathodes, through which specific energy consumption can be reduced significantly. For a longer lifetime, the TiB2 cathodes should be resistant to electrolyte penetration. Further research should be conducted to understand the electrochemical behavior of TiB2 in low-temperature electrolytes. Graphical
      PubDate: 2022-05-02
       
  • Hydrometallurgical Recovery of Manganese from Ferruginous Manganese Ore by
           Reductive-Acid Leaching with Sodium Dithionite

    • Free pre-print version: Loading...

      Abstract: The leaching behavior of manganese from ferruginous manganese ore in sulphuric acid solution using sodium dithionite as a reducing agent was investigated. The optimum sulphuric acid concentration, leaching time, temperature, pulp density and agitation speed for leaching of manganese was determined. Complete manganese leaching was observed under the optimized conditions of 0.6 M H2SO4, 0.49 M sodium dithionite, 200 g/L pulp density, 60 °C leaching temperature, 600 rpm stirring rate and 120 min reaction time. The leaching kinetics and dissolution process have also been analyzed by model fitting and microstructural observation. The kinetics of reductive leaching of manganese ores by sodium dithionite in dilute sulphuric acid did not follow a shrinking core kinetic model. The Avrami model was used successfully to explain the kinetic data. The positive values of both ∆H and ∆S indicates that the leaching process is endothermic and random while the negative values of ∆G indicate that manganese dissolution process is spontaneous in nature. After removal of impurities from the leach solution by precipitation, a high purity (99.2%) α-Mn2O3 was synthesized from the concentrated Mn solution. The as-synthesized manganese oxide powder was characterized by chemical analysis, SEM–EDS and XRD analysis. The present process would be a key technology for reductive leaching of manganese oxide ores in an economical and efficient way. Graphical
      PubDate: 2022-04-25
       
 
JournalTOCs
School of Mathematical and Computer Sciences
Heriot-Watt University
Edinburgh, EH14 4AS, UK
Email: journaltocs@hw.ac.uk
Tel: +00 44 (0)131 4513762
 


Your IP address: 3.236.221.156
 
Home (Search)
API
About JournalTOCs
News (blog, publications)
JournalTOCs on Twitter   JournalTOCs on Facebook

JournalTOCs © 2009-