(1. 中南大學 化學化工學院，長沙 410083；
2. 陽谷祥光銅業(yè)有限公司，聊城 252000)
摘 要: 銅冶煉過程主要采用電收塵煙灰脫砷、污酸脫砷、銅電解液脫砷等方法，砷以砷濾餅或黑銅泥的形式得到分離和富集，以此解決銅冶煉體系中砷的開路問題，得到的砷渣富含銅、錸、鉛、鋅等有價金屬。砷的回收存在砷二次污染、資源浪費等難點，亟待突破。通過論述砷在銅冶煉過程中的分布，研究從含砷物料中砷的存在形態(tài)及反應(yīng)機理入手，系統(tǒng)綜述了脫砷技術(shù)在煙塵和電解過程中的應(yīng)用，并對實際生產(chǎn)中遇到的瓶頸展開探討。結(jié)合近年來砷的穩(wěn)定性處理技術(shù)研究，對未來砷的清潔回收技術(shù)進行了展望。
關(guān)鍵字: 銅冶煉；砷；二次污染；形態(tài)；清潔回收
（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
