Journal of Mining World Express
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Open Access journal
ISSN (Print) 2169-642X - ISSN (Online) 2169-6438
Published by Science and Eng Pub Co. [49 journals]
- Mineral Industry in Egypt– Part II Non-Metallic Commodities –
Abstract: Mineral Industry in Egypt– Part II Non-Metallic Commodities – Silica Ores
Author M. Ezz-El DinA. M. AbouzeidKh. El maadawyA. M. KhalidR. E. El Sheri
Silicon, nowadays, is involved in many advanced and high technology industries due to its unique property. The silica ores exist in the form of quartz, quartzite, and white sand. In Egypt, quartz is confined to igneous and metamorphic origins, while white sand exists in the form of sedimentary deposits. Quartz and quartzite are found in association with basement rocks in Eastern Desert and Western Desert. While white sand deposits are widely distributed in Sinai, Eastern Desert, and Western Desert, with the most commercial deposits in Sinai and Eastern Desert.Estimation of the geological and economic reserves indicate huge tonnages of all types of silica ores. Quartz reserves sum up to 20 million tons, and silica sands sum up to more than 3 billion tons. Evaluation of the chemical and physical characteristics of the silica in Egypt showed high quality silica with low contaminations. The major part of these reserves is available through open-pit mining with very low costs due to minimal overburden. Some of the silica sand deposits contain a high percentage of white kaolin, up to about 11 percent, which is separated as a valuable economic byproduct. The basic processing operations of the white sand are washing, screening, attrition scrubbing, desliming and dewatering. In some locations magnetic separation is used for the removal of magnetic impurities. Academic research work showed that the quality of the white sand product can be improved when froth flotation operation is used.
- Modeling the Recovery of Froth Flotation Using Game Theory
Abstract: Modeling the Recovery of Froth Flotation Using Game Theory
Author Mohammed-Noor Al-Maghrab
For a better understanding of froth flotation principle and to explain the conflict in flotation a recovery model is formulated. From the theoretical formulation, it transpires that based on the gain values of the various strategies of the three players in a game theory, it is possible to predict pure mineral recovery using flotation column by summing up the concentrate of the two players at a time. The present work is an attempt to apply the game theory to a mineral extraction problem where the aim of flotation optimization is to find the operating conditions which gives the highest grade and recovery using game theory with three players.