某铅锌尾矿的锌硫综合回收选矿试验研究
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摘要
某铅锌银硫化矿尾矿中主要有用矿物为闪锌矿、硫银矿、黄铁矿,主要脉石矿物为石英、白云石、菱铁矿、方解石;闪锌矿与黄铁矿共生关系密切,可浮性相近;碳酸盐等脉石粒度细,泥化严重。采用对黄铁矿抑制作用明显的石灰+腐植酸钠组合抑制剂,对矿泥分散效果良好的碳酸钠,以及对锌矿物选择性捕收效果好的乙丁黄药捕收剂,进行了浮选试验研究,最终获得锌品位40.83%、银品位205.12 g/t,锌回收率49.72%的锌精矿和硫品位40.53%,硫回收率54.98%的硫精矿,实现了对该矿山尾矿有价金属的综合回收。
The main useful minerals of certain lead-zinc-silver sulfide tailings are sphalerite,sulfide and pyrite,and the main gangue minerals are quartz,dolomite,siderite,and calcite. Blende and pyrite have a close symbiotic relation with each other and their floatability is similar. Carbonate and other gangues are fine grained and easy to be muddy. The flotation tests were studied by using combined depressant of lime and sodium humate which had an obvious effect on pyrite,sodium carbonate which had a good dispersion effect on mud,and collectors of ethyl and butyl xanthate which had a good selective collectivity for zinc minerals. The results showed that good separation indexes of zinc concentrates containing Zn of 40. 83%,Ag of 205. 12 g/t with Zn recovery of 49. 72%,and sulfur concentrates containing S of 40. 53% with recovery of 54. 98% were achieved finally. The study realized a comprehensive recovery of valuable metals in the mine tailings.
The main useful minerals of certain lead-zinc-silver sulfide tailings are sphalerite,sulfide and pyrite,and the main gangue minerals are quartz,dolomite,siderite,and calcite. Blende and pyrite have a close symbiotic relation with each other and their floatability is similar. Carbonate and other gangues are fine grained and easy to be muddy. The flotation tests were studied by using combined depressant of lime and sodium humate which had an obvious effect on pyrite,sodium carbonate which had a good dispersion effect on mud,and collectors of ethyl and butyl xanthate which had a good selective collectivity for zinc minerals. The results showed that good separation indexes of zinc concentrates containing Zn of 40. 83%,Ag of 205. 12 g/t with Zn recovery of 49. 72%,and sulfur concentrates containing S of 40. 53% with recovery of 54. 98% were achieved finally. The study realized a comprehensive recovery of valuable metals in the mine tailings.
引文
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[15]姚伟,李茂林,孙肇淑,等.某极细粒级黄铁矿回收工业试验[J].矿业研究与开发,2015,35(12):33-37.
[2]刘志强,郝梓国,刘恋,等.我国尾矿综合利用研究现状及建议[J].地质评论,2016,62(5),1277-1282.
[3]唐宝彬,张丽霞.矿山尾矿等二次资源的综合利用问题探索[J].湿法冶金,2005(6):69-72.
[4]曹进成,曹飞,吕良,等.山东某铅锌银多金属矿选矿试验研究[J].化工矿物与加工,2012,41(1):20-21,30.
[5]孙燕,刘和峰,刘建明,等.有色金属尾矿的问题及处理现状[J].金属矿山,2009(5):6-10.
[6]梅国栋.尾矿综合利用与无尾矿山建设探讨[J].金属矿山,2010(10):142-145.
[7]胡真,汪泰,李汉文,等.某富银铅锌多金属矿浮选研究[J].矿山机械,2012,40(10):100-103.
[8]王宏伟,左玉明,柴新新.尾矿资源回收与利用[J].资源再生,2006(6):32-35.
[9]王全亮,唐喻.某铅锌尾矿综合回收工业试验研究[J].湖南有色金属,2017,33(04):8-10.
[10]孙肇淑.从某铅锌矿尾矿中回收微细粒级黄铁矿试验研究[J].矿冶工程,2016,36(04):49-52.
[11]李强,李奇勇,林欣.某铅锌矿浮选尾矿选锌试验研究[J].矿业研究与开发,2017,37(08):29-32.
[12]李莉.矿产资源综合利用的研究与对策[J].现代矿业,2009,25(6):5-9.
[13]刘恋,郝情情,郝梓国,等.中国金属尾矿资源综合利用现状研究[J].地质与勘探,2013,49(3):0437-0443.
[14]郭万富,黄石,陈享享,等.组合起泡剂改进硫铁矿浮选工艺试验研究[J].化工矿物与加工,2016,45(02):19-22.
[15]姚伟,李茂林,孙肇淑,等.某极细粒级黄铁矿回收工业试验[J].矿业研究与开发,2015,35(12):33-37.