1. Principle process
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In practice when sorting metal plurality of lead zinc sulfide ores, the use of lead-zinc flotation process, is desired to recover sulfur, lead and zinc typically by a flotation process, the sulfur to be recovered, generally made of lead flotation tailings Zinc and sulphur are selected (preferably, mixing is common), and the full-mix flotation process (Qingchengzi) is less. Some lead, zinc sulfide ores, pyrite buoyant, using the first option is selected from sulfur zinc lead, lead sulfur flotation process separate portions (Zhuji, on behalf Lanta La, hezhang) of lead, zinc, copper Sulfide ore is generally used in copper-lead mixed flotation, followed by partial mixing flotation of zinc (or zinc, sulfur). The use of a full hybrid flotation process (small iron mountain) is less. Some of the plants are based on the characteristics of easy-floating and difficult-to-float zinc ore in the ore, and adopt a floatable process such as lead-based (Huangshaping) or copper-based (Yongren).
In lead-zinc polymetallic sulfide ore, sulfide minerals tend to be closely symbiotic, so the mixed flotation process is conducive to energy saving in grinding. The key to the hybrid flotation process is the deionization of mixed concentrates. This problem has not actually been solved very well, so it also limits the development of the hybrid flotation process. The method of decontamination of mixed concentrates still needs further study.
China's major lead-zinc polymetallic sulphide ore beneficiation plant sorting Process in the table below: 
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