production. economies of scale have been real-ized in all phases of copper production. both ma-chine and human productivity have increased dramatically. this chapter briefly describes the technology for producing copper from exploration through mining and milling to smelting and refining or solvent extraction and electrowinning. the chap-
the production of pyrites either as crude pyrites or as beneficiated pyrites is highly dependent on the fertilizer market sulphur prices and the amount of produced sulphuric acid. flotation pyrites are however obtained in marketable quantities as a byproduct of non-ferrous metal sulphide beneficiation plants. the roasting processes as
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pyrite roasting an alternative to sulphur burning - (scielo) sa. acid. flotation pyrites are however obtained in marketable quantities as a byproduct of non-ferrous metal sulphide beneficiation plants.
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the mineral pyrite (/ ˈ p aɪ r aɪ t /) or iron pyrite also known as fool's gold is an iron sulfide with the chemical formula fes 2 (iron(ii) disulfide). pyrite is considered the most common of the sulfide minerals.. pyrite's metallic luster and pale brass-yellow hue give it a superficial resemblance to gold hence the well-known nickname of fool's gold.the color has also led to the
copper production about 80 % of primary copper production comes from low-grade or poor sulfide ores. after enrichment steps the copper concentrates are usually treated by pyrometallurgical methods. generally copper extraction follows the sequence (see figure below): 1. beneficiation by froth flotation of ore to give copper concentrate
an abundant mineral in nature and despite its potential as raw material for different segments of industry when it comes from coal mining pyrite (fes 2) is treated as waste and its disposal culminates in environmental problems for the coalfields.increasing the purity of pyritic tailings increasing its iron disulfide content strengthen the possibility of turning it into a value-added by
some studies have shown that copper tailings can be used in bricks if pyrites are first removed. for more information see the 1985 epa report to congress wastes from the extraction and beneficiation of metallic ores phosphate rock asbestos overburden from uranium mining and oil shale (pdf) (303 pp 9.5 mb about pdf). raffinate