With self-developed new collector GYY-1 and GYY-3 instead of ammonium dibuyldithiophosphate, collector DY with a blistering performance developed by Guangzhou Research Institute of Nonferrous Metals instead of 2# oil, the problem of the worsening lead-antimony concentrate index in recent years in a Guangxi lead-antimony-zinc-tin polymetallic ore was solved without changing the on-site processing. In laboratory tests, Pb + Sb grade in lead-antimony concentrate was increased by 2. 91% , and lead and antimony recoveries increased by 6. 47% and 4. 23%. In industrial applications, Pb + Sb grade in lead-antimony concentrate was increased 0. 85% , and lead-antimony recovery increased by 3. 75%. According to the industrial applications, it is expected that the annual economic benefits of 13. 23 million yuan be gained with the new collectors in concentrator.%以自行研制的新型捕收剂GYY-1和GYY-3代替丁铵黑药、以广州有色金属研究院研制的具有起泡性能的捕收剂DY代替2号油,在不改变现场原则流程的情况下解决广西某铅锑锌锡多金属矿选矿厂近年来因矿石性质变化而导致的铅锑精矿指标恶化问题,实验室试验时铅锑精矿的Pb+ Sb品位提高了2.91个百分点、铅回收率提高了6.47个百分点、锑回收率提高了4.23个百分点,工业应用考察时铅锑精矿的Pb +Sb品位提高了0.85个百分点、铅锑回收率提高了3.75个百分点.根据工业应用考察结果,预计采用新药剂可使选矿厂每年增加经济效益1323万元.
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