提高广西某铅锌矿选厂选铅指标研究

金属矿山 ›› 2014, Vol. 43 ›› Issue (12): 90-94.

提高广西某铅锌矿选厂选铅指标研究

卢琳1，刘沛军2，吴福初3

1.广西冶金研究院，广西南宁 530023；2.广西高峰矿业有限责任公司，广西河池 547205；3.广西有色金属集团稀土开发有限公司，广西南宁 530022

出版日期:2014-12-15 发布日期:2015-07-23

Study on Lead Concentrate Index Improving of a Lead-zinc Dressing Plant in Guangxi

Lu Lin1，Liu Peijun2，Wu Fuchu3

1.Guangxi Metallurgy Research Institute，Nanning 530023，China；2.Guangxi Gaofeng Mining Limited Liability Company，Hechi 547205，China；3.Guangxi Non-ferrous Metals Group Rare Earth Development Co.，Ltd.，Nanning 530022，China

Online:2014-12-15 Published:2015-07-23

摘要/Abstract

摘要： 广西某高泥低品位铅锌矿石铅品位在1.5%左右，主要铅矿物为方铅矿，有15%左右的铅被氧化。选矿厂采用优先浮铅然后浮锌的工艺流程生产铅精矿和锌精矿，但由于矿泥的干扰导致选铅效果较差，铅精矿的铅品位和铅回收率分别只有45%左右和65%左右。针对矿石特点开展提高铅精矿指标的选矿试验，先采用螺旋洗矿机和螺旋溜槽脱去产率达12.11%的矿泥后再浮选铜，并在浮铜过程中将抑制剂由现场采用的硫酸锌+亚硫酸钠改为自行研制的无毒有机抑制剂YJ，将捕收剂由现场采用的乙硫氮改为组合捕收剂GD-1，最终获得了铅品位达54.65%、铅回收率达79.78%的铅精矿。与现场生产相比，试验所获铅精矿的铅品位提高了约10个百分点，铅回收率提高了约15个百分点，从而为现场选铜工艺的优化提供了有力的技术支撑。

关键词: 高泥低品位铅锌矿石, 预先脱泥, 新型抑制剂YJ, 组合捕收剂GD-1

Abstract: There is 1.5% lead in a high mud and low grade lead-zinc ore in Guangxi，and main lead mineral is galena，about 15% of lead being oxidized.The process of lead flotation first and then zinc flotation is brought for production of lead concentrate and zinc concentrate，but the flotation index is not well due to the interference of slime.The grade and recovery rate of lead concentrate are only about 45% and 65% respectively.Beneficiation experiments on lead concentrate index improving are carried out based on the characteristics of the ore.Spiral washing machine and spiral chute are firstly used to discard the 12.11% slime and then endure lead flotation，during which self made non-toxic organic depressor YJ is used to replace the original zinc sulfate and sodium sulfite，and combination collector GD-1 is brought to replace the original sulfur nitrogen.Lead concentrate with lead grade of 54.65% and recovery of 79.78% is obtained.Compared with the on-site process，lead grade is increased by 10 percentage points and lead recovery is increased by about 15 percentage points，providing a persuasive technical support for copper flotation process optimization.

Key words: High mud and low grade lead-zinc ore, Pre-desliming, New inhibitors YJ, Combination collector GD-1

卢琳, 刘沛军, 吴福初. 提高广西某铅锌矿选厂选铅指标研究[J]. 金属矿山, 2014, 43(12): 90-94.

LU Lin, LIU Pei-Jun, WU Fu-Chu. Study on Lead Concentrate Index Improving of a Lead-zinc Dressing Plant in Guangxi[J]. Metal Mine, 2014, 43(12): 90-94.

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