Cu^(2+)活化黄铁矿与黄铜矿的浮选分离

Flotation Separation of Cu^(2+) Activated Pyrite and Chalcopyrite

在研究丁黄药体系中黄铜矿、黄铁矿单矿物的天然可浮性,石灰(调节矿浆pH)、亚硫酸氢钠、铜离子对黄铜矿、黄铁矿可浮性的影响,柠檬酸对被Cu2+活化的黄铁矿、黄铜矿可浮性的影响,柠檬酸-亚硫酸氢钠-石灰组合抑制剂对被Cu2+活化的黄铁矿、黄铜矿可浮性的影响的基础上,采用柠檬酸-亚硫酸氢钠-石灰组合抑制剂对被Cu2+活化的黄铁矿-黄铜矿人工混合矿进行浮选分离,得到了铜品位和铜回收率分别为24.12%和88.48%的铜精矿,及硫品位和硫回收率分别为49.69%和72.51%的硫精矿,表明该组合抑制剂对被Cu2+活化的黄铁矿具有良好的选择性抑制作用。

Based on investigation of natural flotation of chalcopyrite and pyrite,effects of lime（adjusting slurry pH value）,sodium hydrogen bisulfite,copper ion on floatability of chalcopyrite and pyrite,effects of citric acid on floatability of Cu2＋ activated pyrite and chalcopyrite,and effects of combining inhibitor of citrate acid-sodium hydrogen bisulfite-lime on floatability of Cu2＋ activated pyrite and chalcopyrite,the combining citrate acid-sodium hydrogen bisulfite-lime is used as inhibitor to make the flotation separation of artificially mixed ores of pyrite and chalcopyrite activated by Cu2＋.Then,copper concentrate grading at 24.12% with an 88.48% Cu recovery and Sulfur concentrate grading at 49.69% with a 72.51% S recovery were obtained.It demonstrates that this combining inhibitor can realize selective inhibit effect on Cu2＋ activated pyrite.