四川某锌硫混合精矿分离浮选试验研究
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摘要
四川某锌硫混合精矿锌品位为4.11%、硫品位为37.65%,有用矿物主要为铁闪锌矿和黄铁矿。对该混合精矿进行锌-硫分离浮选试验研究,结果表明:混合精矿经硫化钠+活性炭+再磨联合脱药方法处理后,磨矿至-0.043mm占85%,采用一次粗选-两次精选-一次扫选-中矿顺序返回的浮选闭路试验流程分选,可获得产率为7.50%、锌品位为42.48%、锌回收率为77.83%、含硫为20.63%的锌精矿及产率为92.50%、硫品位为39.03%、硫回收率为95.89%、含锌为0.99%的硫精矿;产品含杂均不超标,较好地实现了锌硫混合精矿的浮选分离。
A zinc-sulfur mixed concentrate in Sichuan is characterized by main recyclable mineral of marmatite and pyrite with zinc grade of 4.11% and sulfur grade of 37.65%.The experimental study on separation flotation of zinc-sulfur mixed concentrate was carried out.The results showed that after reagent removal of the mixed concentrate by sodium sulfide,activated carbon and regrinding combined treatment,with grinding fineness of-0.43 mm occupying 85%,the separation test was carried out through closed-circuit flotation process of one-stage roughing,two-stage cleaning,one-stage scavenging,and middling returning in order.Finally,a zinc concentrate with yield of 7.50%,zinc grade of 42.48%,zinc recovery rate of 77.83%and sulfur grade of 20.63% was obtained,as well as a sulfur concentrate with yield of 92.50%,sulfur grade of 39.03%,sulfur recovery rate of 95.89% and zinc grade of 0.99%.Impurity content of products did not exceed the standard,which realized separation flotation of zinc and sulfur from mixed concentrate.
A zinc-sulfur mixed concentrate in Sichuan is characterized by main recyclable mineral of marmatite and pyrite with zinc grade of 4.11% and sulfur grade of 37.65%.The experimental study on separation flotation of zinc-sulfur mixed concentrate was carried out.The results showed that after reagent removal of the mixed concentrate by sodium sulfide,activated carbon and regrinding combined treatment,with grinding fineness of-0.43 mm occupying 85%,the separation test was carried out through closed-circuit flotation process of one-stage roughing,two-stage cleaning,one-stage scavenging,and middling returning in order.Finally,a zinc concentrate with yield of 7.50%,zinc grade of 42.48%,zinc recovery rate of 77.83%and sulfur grade of 20.63% was obtained,as well as a sulfur concentrate with yield of 92.50%,sulfur grade of 39.03%,sulfur recovery rate of 95.89% and zinc grade of 0.99%.Impurity content of products did not exceed the standard,which realized separation flotation of zinc and sulfur from mixed concentrate.
引文
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[6]阮耀阳,罗惠华,张泽强,等.中低品位胶磷矿常温正反浮选试验[J].化工矿物与加工,2017,46(10):1-4.
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[11]胡熙庚.有色金属硫化矿选矿[M].北京:冶金工业出版社,1987:99-102.
[12]朱建光.浮选药剂的化学原理[M].长沙:中南工业大学出版社,1987:167-170.
[2]骆任,韦华祖,魏党生,等.四川某铜铅混合精矿铜铅浮选分离试验研究[J].湖南有色金属,2013,29(1):10-13.
[3]许时.矿石可选性研究[M].北京.冶金工业出版社,1989:78-80.
[4]王普蓉.青海某金锑矿浮金试验研究[J].中国矿业,2018,27(6):108-112.
[5]李贺,王福奎,周强伟,等.某铜矿选铜尾矿锌硫回收研究及生产实践[J].四川有色金属,2018,33(2):27-30.
[6]阮耀阳,罗惠华,张泽强,等.中低品位胶磷矿常温正反浮选试验[J].化工矿物与加工,2017,46(10):1-4.
[7]卜显忠,王阳,高珂,等.强化脱药促进广西某铅锌等可浮精矿的分离[J].金属矿山,2016,48(6):73-76.
[8]邱廷省,丁声强,张宝红,等.硫化钠在浮选中的应用技术现状[J].有色金属科学与工程,2012(6):39-43.
[9]龚明光.泡沫浮选[M].北京.冶金工业出版社,2007:192-194.
[10]管晓颖,宋永胜,李文娟,等.铜钼混合精矿残余药剂测量及脱药试验研究[J].稀有金属,2017,41(7):810-815.
[11]胡熙庚.有色金属硫化矿选矿[M].北京:冶金工业出版社,1987:99-102.
[12]朱建光.浮选药剂的化学原理[M].长沙:中南工业大学出版社,1987:167-170.