METHOD FOR PROCESSING OF POLYMETALLIC SULFIDE RAW

摘要

Usage: hydrometallurgists of non-ferrous metals, processing of poor sulfide ores containing non-ferrous and precious metals. Essence: polymetallic sulphide raw materials, in particular sludge of light fraction, are subjected to agitation leaching with a solution of sulfuric acid in the presence of sodium chloride and oxygen of the air. In this case, the leaching solution contains sulfuric acid in a concentration of 200–400 g / l, and additionally, nitrates of alkali or pinch-earth metals in an amount of 50–100 g / l. From the solution after leaching, the metals are separated by known methods 7 table. WITH