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The object studied is Shaimerden oxidized zinc ore deposit containing zinc, lead, copper, iron, calcium, magnesium, aluminum, manganese and silicon. Chemical and mineralogical composition of the ore are investigated. It is established that ore coarse fraction contains more zinc carbonate and less zinc silicate compared with undersize particles. In addition, ore coarse fraction is richer in residual...
The research subject is an intermediate product of zinc production containing lead, zinc, iron, copper, and silver. Thermodynamic analysis is performed for all probable transformations during sulfuric acid leaching, and a Purbe diagram is plotted. The study of uncovering lead-containing middlings is performed in two stages: the first is leaching with sulfuric acid with density 250 g/dm3 (S:L = 1:4)...
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