我矿历来只采用丁基黄药单为硫化铜矿物捕收剂,该药捕收性能虽好,但缺乏选择性,故生产指标不高。为了提高铜精矿品位,于八五年一月在昆明冶金研究所,用该所生产的丁黄腈酯做可选性的试验。同年七月下旬用于生产试验,经过五个多月的生产实践,证明了丁黄腈酯是分选黄铜矿—磁黄铁矿,黄铁矿的有效药剂,铜精矿品位提高5％,回收率提高4％,经济效果比较好。 My mine has always been used only butyl xanthate single copper sulfide mineral collector, although the drug collection performance is good, but the lack of selectivity, so the production index is not high. In order to improve the grade of copper concentrates, an optional test was conducted with the KBT produced at the Kunming Institute of Metallurgy in January 1985. The same year in late July for the production test, after more than five months of production practice, proved that butyronitrile is chalcopyrite - pyrrhotite, pyrite effective agent, copper concentrate grade increased by 5% , The recovery rate increased by 4%, the economic effect is better.