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毒砂矿石是一种含有色和贵金属的复合矿石。在处理这些矿石时,必须严格清除最终尾矿中的砷,或是将这些尾矿作为砷产品和复合产品。毒砂矿石中分散的有色金属含量往往达到0.01～0.15%。在这些矿石中,金主要与硫化物呈胶体次分散共生,而银呈硫酸盐的形式存在。有色金属和银与金不同的是往往与砷没有共生关系。在处理这些矿石时,采金部门按氰化工艺把硫酸盐中的银排入尾矿,同时也损失了有色金属。
Arsenopyrite ore is a complex ore containing both colored and precious metals. In dealing with these ores, the arsenic in the tailings must be rigorously removed or used as arsenic and composite products. Arsenopyrite ore scattered in the non-ferrous metals often reach 0.01 to 0.15%. In these ores, gold is primarily colloidally dispersed with sulphide and the silver is in the form of sulphate. Non-ferrous metals and silver differ from gold in that they often have no symbiotic relationship with arsenic. In dealing with these ores, the gold-mining sector dumped the silver from the sulphate into the tailings by the cyanidation process, as well as the loss of non-ferrous metals.