摘要
铜阳极泥含Au、Ag、Se、Te、Cu等多种有价金属,高效回收其中的稀贵金属不仅可实现资源综合利用,而且可产生显著的社会经济效益。目前,铜阳极泥传统处理工艺存在环境污染大、金属回收率低等问题,卡尔多炉工艺是解决问题的有效途径。卡尔多炉工艺是铜阳极泥典型处理工艺,本文系统介绍了其原理和方法,重点阐述了阳极泥预处理、卡尔多炉熔炼及金银合金电解的工艺特点。针对卡尔多炉熔炼周期长、稀贵金属分离提纯工艺复杂及回收率低等问题,在综合国内外先进技术及最新科研成果的基础上,总结出阳极泥预处理工艺优化、熔炼效率提升及稀贵金属强化回收的优化措施。
Copper anode slime(CAS) contains valuable metals such as Au,Ag,Se,Te,Cu,therefore efficient recovery of CAS not only realizes the comprehensive utilization of resources,it also brings significant social and economic benefits.At present,there exists several problems in the CAS treatment process such as environmental pollution and low recovery rate.The Kaldo furnace process is an effective method for the treatment of CAS.As a typical treatment process of CAS,the principle and flow of the Kaldo furnace process are presented in this paper,including the pre-treatment,melting and Dore alloy electrolysis processes.To address the problems in the present process of long melting cycle of Kaldo furnace,complex separation and purification process of rare and precious metals,and low recovery rate,the optimazation measures are proposed including pre-treatment for CAS,enhancement in smelting efficiency and improvement for recycling rare and precious metals.
作者
郭学益
陈建儒
王松松
李明钢
王亲猛
GUO Xue-yi;CHEN Jian-ru;WANG Song-song;LI Ming-gang;WANG Qin-meng(School of Metallurgy and Environment,Central South University,Changsha 410083,China)
出处
《中国有色金属学报》
EI
CAS
CSCD
北大核心
2023年第12期4130-4151,共22页
The Chinese Journal of Nonferrous Metals
基金
国家自然科学基金资助项目(U20A20273,51904351)
国家重点研发计划资助项目(2019YFC1907401)
湖南省杰出青年科学基金资助项目(2022JJ10078)
湖湘青年英才计划资助项目(2021RC3005)
中南大学创新驱动计划资助项目(2020CX028)。
关键词
卡尔多炉工艺
铜阳极泥
稀贵金属
工艺优化
Kaldo furnace process
copper anode slime
rare and precious metals
process optimization
