铜冶炼过程中的砷反应行为及其处理技术的回顾
A review of arsenic reaction behavior in copper smelting process and its disposal techniques
李青竹 1李本盛 2颜学磊 2王庆伟 1李圣图 2刘恢 1梁彦杰1
作者信息
- 1. School of Metallurgy and Environment,Central South University,Changsha 410083,China;National Engineering Research Centre for Control and Treatment of Heavy Metal Pollution,Central South University,Changsha 410083,China
- 2. School of Metallurgy and Environment,Central South University,Changsha 410083,China
- 折叠
摘要
砷作为五大有毒元素之一,其对生物体和生态环境的健康威胁已引起公众的广泛关注.有色金属冶炼,特别是铜冶炼,是砷的重要人为来源,应被列为重点关注对象.因此,明确砷在铜冶炼过程中的行为,对铜冶炼企业的正常生产和环境保护具有重要意义.本工作简要介绍了冶炼用工业铜矿物和铜矿中砷的赋存形式,以及铜冶炼工艺的演变.此外,还分析了砷在有代表性的铜冶炼过程中的挥发、转化和分布行为,明确了其流向和富集规律.研究了其他矿物成分(Cu、Pb、Zn、Fe、Ca、Si)与砷在冶炼副产品(铜渣和烟尘)形成过程中的相互作用,阐明了砷污染物的形成机制.最后,分析了冶炼烟气、烟尘和铜渣中砷的控制技术,提出了未来通过将砷污染物转化为金属砷来回收砷的可能策略.
Abstract
As one of the five major toxic elements,the health threat of arsenic to organisms and ecological environment has attracted serious public attention.As one of the important anthropogenic sources of arsenic,non-ferrous smelting,especially copper smelting,should be listed as a key concern.Therefore,clarifying the behavior of arsenic in the copper smelting process is of great significance to the normal production and environmental protection of copper smelting enterprises.This work briefly introduced the industrial copper minerals for smelting,the occurrence form of arsenic in copper ore,and the evolution of copper smelting process.Furthermore,the volatilization,transformation and distribution behavior of arsenic in representative copper smelting processes were analyzed to clarify its flow direction and enrichment law.The interactions between other mineral components(Cu,Pb,Zn,Fe,Ca,Si)and arsenic during the formation of smelting by-products(copper slag and flue dust)were investigated to elucidate the formation mechanism of arsenic pollutants.Finally,the control technologies for arsenic in smelting flue gas,flue dust and copper slag were analyzed to propose a possible future strategy to recover arsenic by converting arsenic pollutants to metallic arsenic.
关键词
arsenic/copper smelting/heavy metal pollution/transformation/disposal techniqueKey words
arsenic/copper smelting/heavy metal pollution/transformation/disposal technique引用本文复制引用
基金项目
National Natural Science Fundation for Distinguished Young Scholars of China(52022111)
Hightech Industry Science and Technology Innovation Leading Plan of Hunan Provice,China(51974379)
National Natural Science Foundation of China(2020SK2006)
Huxiang Youth Talent Support Program,China(2020RC3012)
出版年
2023
NETL
NSTL
维普
万方数据