内蒙古某高砷钨锡多金属矿浮选高效抑砷综合回收铜铅锌试验

金属矿山 ›› 2026, Vol. 55 ›› Issue (8): 141-.

• 矿物工程 • 上一篇

内蒙古某高砷钨锡多金属矿浮选高效抑砷综合回收铜铅锌试验

曹月明^1,2欧　睿³田江涛^1,2危　刚^1,2张凯熙^1,2葛阳阳^1,2张　明¹王　强¹

1.河北省地质实验测试中心,河北保定 071051;2.河北省矿产资源与生态环境监测重点实验室,河北保定 071051; 3.焦作技师学院化学工程系,河南焦作 454001

出版日期:2026-08-15 发布日期:2026-09-08
通讯作者: 　危　刚(1987—),男,高级工程师。
作者简介:曹月明(1989—),女,高级工程师,硕士。
基金资助:
河北省保定市科技计划项目(编号:2541ZF121)。

Comprehensive Recovery of Copper,Lead and Zinc from a High-Arsenic Tungsten-Tin Polymetallic Ore in Inner Mongolia with Efficient Arsenic Depression in Flotation

CAO Yueming^1,2OU Rui³　TIAN Jiangtao^1,2　WEI Gang^1,2　ZHANG Kaixi^1,2　GE Yangyang^1,2 ZHANG Ming¹WANG Qiang¹

1.Hebei Research Center for Geoanalysis,Baoding 071051,China; 2.Hebei Key Laboratory of Mineral Resources and Ecological Environment Monitoring,Baoding 071051,China; 3.Department of Chemical Engineering,Jiaozuo Technician College,Jiaozuo 454001,China

Online:2026-08-15 Published:2026-09-08

摘要/Abstract

摘要： 内蒙古某高砷钨锡多金属矿铜、铅、锌含量分别为0.25%、0.31%、1.10%,砷含量高达1.54%,砷的载体矿物毒砂与金属硫化矿嵌布关系紧密,分离难度大。为避免硫化矿对后续钨锡分选的不利影响,并实现伴生铜、铅、锌的综合回收,在工艺矿物学研究的基础上,开展了先浮选脱除硫化矿并分离回收工艺研究。结果表明,采用铜铅锌砷混合浮选—砷与铜铅锌分离—铜与铅锌分离工艺流程,在弱酸性条件下混合浮选铜铅锌砷硫化矿,经脱药处理后以石灰+腐殖酸钠+漂白粉组合抑制剂在低碱度下高效抑制毒砂,实现铜铅锌与砷的有效分离;除砷后的铜铅锌混合精矿采用硫酸锌+亚硫酸钠+CMC抑制铅锌,使铜与铅锌分离。闭路试验获得铜品位17.78%、铜回收率63.51%、含砷 0.77%的铜精矿,铅品位15.22%、铅回收率67.65%、锌品位41.04%、锌回收率71.94%、含砷0.81%的铅锌混合精矿, 砷品位22.15%、砷回收率91.11%的砷精矿,脱硫尾矿(选钨锡原料)铜、铅、锌、砷含量分别降至0.03%、0.04%、 0.09%和0.14%,钨品位0.17%、锡品位0.21%、钨回收率96.97%、锡回收率85.67%,为后续选钨锡创造了良好的条件。

关键词: 铜铅锌　, 多金属硫化矿　, 高砷　, 组合抑制剂　, 混合浮选　, 综合回收

Abstract: In a high-arsenic tungsten-tin polymetallic ore from Inner Mongolia,the contents of Cu,Pb and Zn are 0.25%,0.31% and 1.10%,respectively,with As content as high as 1.54%.The arsenic-bearing mineral (arsenopyrite) is closely intergrown with metal sulfides,making the separation difficult.To avoid the negative impact of sulfide minerals on the subsequent tungsten-tin separation and to achieve comprehensive recovery of associated Cu,Pb and Zn,a flotation desulfuriza tion process was investigated based on process mineralogy.The results show that by adopting the process flowsheet of bulk flota tion of copper-lead-zinc-arsenic sulphide minerals under weakly acidic conditions,followed by separation of arsenic from the copper-lead-zinc bulk concentrate and then separation of copper from lead-zinc,and after reagent-removal treatment,the com bined depressant of lime + sodium humate + bleaching powder can effectively depress arsenopyrite at low alkalinity,achieving efficient separation of copper-lead-zinc from arsenic.After arsenic removal,the copper-lead-zinc bulk concentrate is treated with zinc sulfate + sodium sulfite + CMC to depress lead and zinc,thereby separating copper from lead-zinc.The closed-circuit test produced a copper concentrate with a Cu grade of 17.78% and Cu recovery of 63.51% (containing 0.77% As),a lead zinc bulk concentrate with Pb grade of 15.22% (Pb recovery 67.65%) and Zn grade of 41.04% (Zn recovery 71.94%,con taining 0.81% As),and an arsenic concentrate with As grade of 22.15% and As recovery of 91.11%.The desulphurization tailings (feed for subsequent tungsten-tin recovery) have their Cu,Pb,Zn,and As contents reduced to 0.03%,0.04%, 0.09%,and 0.14%,respectively,while the WO3 grade is 0.17% and Sn grade 0.21%,with WO3 recovery of 96.97% and Sn recovery of 85.67%,thus creating favourable conditions for the subsequent recovery of tungsten and tin.

Key words: copper-lead-zinc,polymetallic sulfide ore,high arsenic,combined depressant,bulk flotation,comprehensive recovery

中图分类号:

TD952

曹月明, 欧　睿, 田江涛, 危　刚, 张凯熙, 葛阳阳, 张　明, 王　强, . 内蒙古某高砷钨锡多金属矿浮选高效抑砷综合回收铜铅锌试验[J]. 金属矿山, 2026, 55(8): 141-.

CAO Yueming, OU Rui, TIAN Jiangtao, WEI Gang, ZHANG Kaixi, GE Yangyang, ZHANG Ming　WANG Qiang. Comprehensive Recovery of Copper,Lead and Zinc from a High-Arsenic Tungsten-Tin Polymetallic Ore in Inner Mongolia with Efficient Arsenic Depression in Flotation[J]. Metal Mine, 2026, 55(8): 141-.

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内蒙古某高砷钨锡多金属矿浮选高效抑砷综合回收铜铅锌试验

Comprehensive Recovery of Copper,Lead and Zinc from a High-Arsenic Tungsten-Tin Polymetallic Ore in Inner Mongolia with Efficient Arsenic Depression in Flotation

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