Such simple sulfide-containing ore, also known as gold ore. Such ore pyrite content as high as 20 to 45%, more than 90% of the total metallic minerals. Gold and pyrite have a close relationship. In addition to pyrite, there is a small amount of yellow copper ore, pyrrhotite, galena like. The gangue is mainly quartz and calcite . The principle of such ore processing is to first separate the metal ore from the quartz by flotation, and then dissolve the gold in the cyanide in order to eliminate harmful elements such as antimony , arsenic , carbon and the like. Calcination is required before cyanidation. A combined process of flotation-floating (calcining) cyanidation. The common principle flow is shown in the figure.

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