Transactions of Nonferrous Metals Society of China The Chinese Journal of Nonferrous Metals

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中国有色金属学报

ZHONGGUO YOUSEJINSHU XUEBAO

第31卷    第6期    总第267期    2021年6月

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文章编号:1004-0609(2021)-06-1582-09
铜冶炼过程中脱砷技术综述及展望
张 煜1, 2,易小艺1,李俊杰2,葛哲令2

(1. 中南大学 化学化工学院,长沙 410083;
2. 阳谷祥光铜业有限公司,聊城 252000
)

摘 要: 铜冶炼过程主要采用电收尘烟灰脱砷、污酸脱砷、铜电解液脱砷等方法,砷以砷滤饼或黑铜泥的形式得到分离和富集,以此解决铜冶炼体系中砷的开路问题,得到的砷渣富含铜、铼、铅、锌等有价金属。砷的回收存在砷二次污染、资源浪费等难点,亟待突破。通过论述砷在铜冶炼过程中的分布,研究从含砷物料中砷的存在形态及反应机理入手,系统综述了脱砷技术在烟尘和电解过程中的应用,并对实际生产中遇到的瓶颈展开探讨。结合近年来砷的稳定性处理技术研究,对未来砷的清洁回收技术进行了展望。

 

关键字: 铜冶炼;砷;二次污染;形态;清洁回收

Review and prospect of technical research of removing arsenide in copper smelting process
ZHANG Yu1, 2, YI Xiao-yi1, LI Jun-jie2, GE Zhe-ling2

1. College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, China;
2. Yanggu Xiangguang Copper Company Limited, Liaocheng 252000, China

Abstract:The methods of removing arsenic from electric precipitation dust, waste acid and electrolyte are mainly used to separate and enrich arsenic in the form of arsenic filter cake or black copper mud in the process of copper smelting, so as to solve the problem of open circuit of arsenic in copper smelting system. The arsenic slag is rich in valuable metals such as copper, rhenium, lead and zinc. There are some difficulties in arsenic recovery, such as secondary pollution and waste of resources. This paper discusses the distribution of arsenic in the processes of copper smelting, studies the existing form and reaction mechanism of arsenic in arsenic bearing materials, systematically summarizes the application of arsenic removal technology in the process of dust and electrolysis, and discusses the bottleneck encountered in actual production. Combined with the research on the stability treatment technology of arsenic in recent years, the future clean recovery technology of arsenic was prospected.

 

Key words: copper smelting; arsenic; secondary pollution; existing form; clean recovery

ISSN 1004-0609
CN 43-1238/TG
CODEN: ZYJXFK

ISSN 1003-6326
CN 43-1239/TG
CODEN: TNMCEW

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