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毒砂是一种有色金属和贵金属的复合矿,处理这种矿石时,或者将砷作尾矿除去,或者优先选成含砷的混合产品。毒砂中分散的有色金属含量常达0.01—0.15%,其中金主要与硫化物呈胶质亚分散结合态出现,而银以硫酸盐的形式存在,与金不同,有色金属和银不一定与砷共生。在采金行业,用氟化物处理这种矿石时,进入硫酸盐的银将作力尾矿排走,其有色金属也同样被丢掉。
Arsenopyrite is a composite ore of non-ferrous and noble metals. When this ore is processed, either arsenic is tailings removed or arsenic-containing mixed products are preferred. The content of non-ferrous metals dispersed in arsenopyrite often reaches 0.01-0.15%, in which gold mainly appears in the form of sub-dispersed and cohesive state with sulphide, while silver exists in the form of sulphate. Unlike nonferrous metals, non-ferrous metals and silver do not necessarily Arsenic symbiosis. In the gold mining industry, when fluorides are used to treat such ores, the sulphate entering the silt will drain the tailings and the non-ferrous metals will be discarded.