某地难选风化混合型铅锌矿浮选试验研究
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摘要
对某地含铅0. 88%、锌4. 61%的高风化砂岩混合型铅锌矿进行了原矿性质与浮选试验研究。其中铅矿物以极细粒分布在黄铁矿、闪锌矿和石英间隙中,难以富集回收;采用捕收能力强的KM捕收剂及常规、无毒、对环境污染小的浮选药剂,优化添加方式,经两次粗选、三次精选、三次扫选锌闭路流程分选,获得锌精矿产率8. 26%,品位45. 78%,回收率83. 27%的选矿指标。
The properties and flotation tests of a mixed lead-zinc ore with high weathering sandstone containing 0. 88% lead and 4. 61% zinc were carried out. Among them,lead minerals are distributed in pyrite,sphalerite and quartz spaces with extremely fine grains,which are difficult to concentrate and recover. The KM collector with strong collecting ability and conventional flotation reagent with no toxicity and little environmental pollution is adopted with optimizing adding way. And with the closed-circuit flow of zinc flotation through two coarse and three precision three scavenging processes,the beneficiation indexes of zinc concentrate yield 8. 26%,grade 45. 78% and recovery rate 83. 27% were obtained.
The properties and flotation tests of a mixed lead-zinc ore with high weathering sandstone containing 0. 88% lead and 4. 61% zinc were carried out. Among them,lead minerals are distributed in pyrite,sphalerite and quartz spaces with extremely fine grains,which are difficult to concentrate and recover. The KM collector with strong collecting ability and conventional flotation reagent with no toxicity and little environmental pollution is adopted with optimizing adding way. And with the closed-circuit flow of zinc flotation through two coarse and three precision three scavenging processes,the beneficiation indexes of zinc concentrate yield 8. 26%,grade 45. 78% and recovery rate 83. 27% were obtained.
引文
[1]尚衍波,陈经华,何发钰.中国铅锌选矿技术新进展[J].世界有色金属,2016(3):12-18.
[2]刘强.某高泥低品位铅锌银硫矿选矿工艺研究[J].矿业工程,2017(1):29-31.
[3]罗仙平,陈晓明,钱有军,等.江西某铅锌银多金属硫化矿石选矿工艺研究[J].金属矿山,2012(12):57-61.
[4]穆晓辉.细粒嵌布铅锌矿石选矿工艺研究[J]甘肃冶金,2013(增刊1):30-33.
[5]刘智林,魏宗武,叶雪均.某选矿厂矿泥系统铅锌分离工艺的探索[J].矿业研究与开发,2005,25(1):41-42.
[6]I.贝拉克塔尔,A.阿斯兰,S.厄塞因,等.原生矿和粘土对多金属矿石浮选选择性的影响[J].国外选矿快报,1999(5):11-16.
[2]刘强.某高泥低品位铅锌银硫矿选矿工艺研究[J].矿业工程,2017(1):29-31.
[3]罗仙平,陈晓明,钱有军,等.江西某铅锌银多金属硫化矿石选矿工艺研究[J].金属矿山,2012(12):57-61.
[4]穆晓辉.细粒嵌布铅锌矿石选矿工艺研究[J]甘肃冶金,2013(增刊1):30-33.
[5]刘智林,魏宗武,叶雪均.某选矿厂矿泥系统铅锌分离工艺的探索[J].矿业研究与开发,2005,25(1):41-42.
[6]I.贝拉克塔尔,A.阿斯兰,S.厄塞因,等.原生矿和粘土对多金属矿石浮选选择性的影响[J].国外选矿快报,1999(5):11-16.