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金属矿山 ›› 2015, Vol. 44 ›› Issue (12): 165-168.

• 综合利用 • 上一篇    下一篇

从广东某冶炼厂铅银渣中回收铅

姚伟1,2,李茂林1,2,3,孙肇淑4,王跃林3,崔瑞1,2   

  1. 1.武汉科技大学资源与环境工程学院,湖北 武汉 430081;2.冶金矿产资源高效利用与造块湖北省重点实验室,湖北 武汉 430081;3.长沙矿冶研究院有限责任公司,湖南 长沙 410012;4.中金岭南股份有限公司凡口铅锌矿,广东 韶关 512325
  • 出版日期:2015-12-15 发布日期:2016-03-09

Lead Recovery from Lead-silver Residues of a Smelting Plant in Guangdong

Yao Wei1,2,Li Maolin1,2,3,Sun Zhaoshu4,Wang Yuelin3,Cui Rui1,2   

  1. 1.College of Resources and Environmental Engineering,Wuhan University of Science and Technology,Wuhan 430081,China;2.Hubei Key Laboratory for Efficient Utilization and Agglomeration of Metallurgic Mineral Resources,Wuhan 430081,China;3.Changsha Research Institute of Mining and Metallurgy Co.,Ltd.,Changsha 410012,China;4.Fankou Pb-Zn Mine,Zhongjin Lingnan Limited Company,Shaoguan 512325,China
  • Online:2015-12-15 Published:2016-03-09

摘要: 广东某冶炼厂将硫化锌精矿氧压酸浸—硫浮选后所得铅银渣的铅品位为17.55%,其中以硫酸铅形式存在的铅占总铅的89.74%。该铅银渣中铅嵌布粒度微细,-40 μm粒级中铅分布率达到98.18%。为回收该铅银渣中有价金属铅,对其进行了选矿试验研究。结果表明:铅银渣经自来水清洗预处理后,以石灰为pH调整剂、水玻璃为脉石矿物抑制剂、CSY为捕收剂、松醇油为起泡剂,经1粗3精2扫铅浮选,获得了铅品位为50.28%、回收率为82.42%的铅精矿。试验取得了较好的分选指标,为该铅银渣的有效利用提供了技术依据。

关键词: 铅银渣, 清洗预处理, 铅, 银, 浮选

Abstract: There is 17.55% lead in lead-silver residues made from a zinc sulfide concentrate of a smelting plant in Guangdong via oxygen pressure acid leaching and sulfur flotation process,89.74% of the lead exists in form of lead sulfate.Lead is fine disseminated in lead-silver residues,98.18% distributed in -40 μm fraction.In order to recover the valuable metal lead in lead-silver residues,beneficiation experiments were conducted.The results showed that after treated by running water,using lime as a pH adjusting agent,sodium silicate as gangue inhibitors,CSY for the collector,alcohol oil as a foaming agent,through the flotation process of one roughing-three cleaning-two scavenging,lead concentrate with lead grade of 50.28% and recovery 82.42% was obtained.Good beneficiation test results had been obtained,which provide technique basis for reasonably use of the lead-silver residues.

Key words: Lead-silver residues, Pretreatment by washing, Lead, Silver, Flotation