For zinc smelting plant in Tak province. Smelting of ore in the form of silicate, carbonate and oxide mix. Smelting lead ore in the ground with a wet grinder until fine powder and then reacts with sulfuric acid (H2SO4) ZnSO4 solution, the solution is neutralized with lime. Filter out minerals from the ore slurry. The waste is sent to a tailings pond and then neutralized with lime to neutralize the solution, filtering ZnSO4 is a salt of CdSO4 CuSO4 Sb2 (SO4) 3 is mixed can be separated by the addition of zinc into the solution. The reaction equation
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