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AMMONIUM COMPLEX SYSTEM-BASED METHOD FOR SEPARATING AND PURIFYING LEAD, ZINC, CADMIUM, AND COPPER
AMMONIUM COMPLEX SYSTEM-BASED METHOD FOR SEPARATING AND PURIFYING LEAD, ZINC, CADMIUM, AND COPPER
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机译:基于铵的分离和纯化铅,锌,镉和铜的方法
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摘要
An ammonium complex system-based method for separating and purifying lead, zinc, cadmium, and copper, comprising the following steps: a zinc-containing raw material is leached using a leach solution to produce a leached solution; a filtrate and a filter residue are produced by filtration; the filtrate is mixed with metal lead to displace copper, undergoes a solid-liquid separation to produce a first separated liquid, is mixed with metal cadmium to displace lead, undergoes a solid-liquid separation to produce a second separated liquid, is mixed with metal zinc to displace cadmium, and undergoes a solid-liquid separation to produce a third separated liquid; and, the third separated liquid is electrolyzed to produce metal zinc, and an electrolytic solution is returned to the leaching step.
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