某含金银铅锌矿石选矿试验研究  

Experimental study on the beneficiation of a lead zinc ore containing gold and silver

作　　者：颜顺德 黄安平 Yan Shunde;Huang Anping(Hunan Shuikoushan Nonferrous Metals Group Co.,Ltd.)

机构地区：[1]湖南水口山有色金属集团有限公司,421513

出　　处：《黄金》2022年第9期68-72,共5页Gold

摘　　要：某铅锌矿中富含金、银,金品位2.4 g/t、银品位90 g/t,铅、锌品位合计在7%以上。为综合回收该矿石中的有价金属元素金,最大程度将金富集在铅精矿中,进行了选矿试验研究,考察了磨矿细度、药剂制度等因素对选矿回收指标的影响。结果表明:在最佳条件下,以及采用25号黑药+丁铵黑药作为组合捕收剂的新药剂制度,闭路试验和工业试验均取得了较好指标;实际生产中,获得的铅精矿铅品位49.51%、铅回收率91.34%,金品位14.32 g/t、金回收率37.23%,金回收率较原药剂制度提高了4.02百分点。A lead zinc ore is rich in gold and silver, with grades 2.4 g/t and 90 g/t.The lead and zinc grades combined are over 7 %.To comprehensively recover the valuable element gold from the ore, and concentrate the gold in the lead concentrates to the maximum extent, the experimental study on the beneficiation was carried out, investigating the effect of grinding fineness, reagent regime, etc.,on the recovery indicators.The results show that under the optimal conditions, in addition to the new reagent regime of combined collector 25dialkyl dithiophosphate+ammonium dibutyl dithiophosphate, the closed test and industrial test both achieved good index;in field production, the lead concentrates obtained have lead grade 49.51 %,lead recovery rate 91.34 %,gold grade 14.32 g/t, gold recovery rate 37.23 %,the gold recovery rate is 4.02 percentage points higher than that of the original reagent regime.

关 键 词：铅锌矿 药剂制度 金回收率 组合捕收剂 25号黑药 

分 类 号：TD952[矿业工程—选矿]