关键词: 铅锌硫化矿尾矿水, 黄铁矿, 浮选

Abstract: This paper investigated the influence of sulphide tailing recycling water of Huize lead zinc mine on the flotation performance of pyrite. Then taking butyl xanthate and diethyl dithiocarbamate as the collector, the differences of floatability of pyrite in tailing water and deionized water were researched. In the condition of taking butyl xanthate and diethyl dithiocarbamate as the collector in deionized water, we zinc sulfate, cupric sulfate and sodium silicate are respectively added as modifiers to influence the floatability of pyrite. The result showed that some special elements in tailing water play a great inhibitory action on floatability of pyrite. Directly recycling tailing water would cause adverse effect on pyrite flotation. Butyl xanthate and diethyl dithiocarbamate have good collecting ability to pyrite, and the modifiers of zinc sulfate, cupric sulfate and sodium silicate influence the floatability of pyrite differently in condition of various collectors.

Key words: Tailing water of lead-zinc sulphur ore, Prite, Fotation