Enrichment indicators for materials with a predominance of fine-graded gold before and after thermal processing on the example of carbonate-silicate ore

The chemical technology for recovery precious metals Au and Ag from mature flotation tailings of copper-pyrite ores by two-stage sintering with chlorine-ammonium reagents and leaching of bakes with water is developed. The chemical extraction of gold and silver is carried out, using NH4Cl and NH4NO3 reagents in the ratios of 1:1 at a temperature of 250 °C, and 2:1 at 200 °C. In accordance with the obtained results, a chemical technology of enrichment rejects of copper-pyrite ores processing and a scheme of primary apparatus chain for implementing this technology are proposed. The economic effect of the technology realization is calculated. This effect is 96.3 million rubles with a payback period of 8 years when processing enrichment rejects of copper-pyrite ores in amount of 109.5 thousand tons per year under the conditions of JSC “Uchaly Mining and Metallurgical Combine”.

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Enrichment indicators for materials with a predominance of fine-graded gold before and after thermal processing on the example of carbonate-silicate ore

Cited by 2 publications

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Formation of Slag Melt Technogenic Gold-Bearing Materials and Application of Refinement Tailings in the Construction Industry

Formation of Slag Melt Technogenic Gold-Bearing Materials and Application of Refinement Tailings in the Construction Industry

The Chemical Technology for Producing Precious Metals from Enrichment Rejects of Copper-Pyrite Ores

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