中国科技核心期刊
美国化学文摘社（CAS）数据库
美国EBSCO学术数据库
日本科学技术振兴机构数据库(JST)
铜阳极泥脱铜脱硒处理工艺研究及应用
- 作者：
- 张焕然
- 作者单位：
- 紫金矿业集团股份有限公司
基金项目：
- 国家重点研发计划项目（2019YFF0217100）
详细信息：
- 作者简介：
- 张焕然（1987—），男，河南舞钢人，工程师，硕士，从事稀贵金属资源综合利用科研及生产管理工作；福建省上杭县紫金路1号紫金大厦，紫金矿业集团股份有限公司，364200；E-mail：huanran.zhang@zijinmining.com
- 通讯作者：
- isnull
- PDF下载
Study on the process of copper and selenium removal from copper anode slime and its application
- English Author：
- Zijin Mining Group Co.,Ltd.
- Unit：
- 摘要
- 在线预览
- 参考文献
摘要:
针对某矿山冶炼厂铜阳极泥脱铜、脱硒工序存在指标波动大，导致后续合金熔炼渣金、银含量升高等问题，通过单因素试验考察了硫酸质量浓度、反应温度、反应时间对铜阳极泥常压氧浸脱铜的影响，以及焙烧温度、焙烧时间对脱铜阳极泥硫酸化焙烧脱硒的影响。结果表明：在液固比6∶1，通氧流速15 m3/h，硫酸质量浓度140 g/L，反应温度85 ℃，反应时间28 h的条件下，铜阳极泥常压氧浸脱铜，铜浸出率可达96.42 %，硒基本不被浸出；脱铜阳极泥与浓硫酸按1∶1浆化，在焙烧温度680 ℃，焙烧时间48 h的条件下，硒脱除率达98.60 %以上。同时，在优化的工艺条件基础上，结合生产实践进行了改造，较好解决了工序中存在的问题，取得了显著的经济效益。
关键词:
铜阳极泥；脱铜；脱硒；常压氧浸；硫酸化焙烧
Abstract:
The great fluctuations in process indexes of copper and selenium removal from copper anode slime in a mine smelter result in increasing gold and silver content in subsequent alloy smelting slags.The effects of sulfuric acid concentration,reaction temperature,and reaction time on the copper removal from copper anode slime by atmospheric-pressure oxygen leaching were investigated through single factor experiments,as well as the effect of roasting temperature and roasting time on selenium removal by sulfate roasting of anode slime that is removed of copper.The results show that under the conditions of a liquid-solid ratio of 6:1,an oxygen flow rate of 15 m3/h,the sulfuric acid mass concentration of 140 g/L,reaction temperature of 85 ℃,and reaction time of 28 h,the copper leaching rate from copper anode slime can reach 96.42 % by atmospheric-pressure oxygen leaching,while selenium is basically not leached.The anode slime removed of copper and concentrated sulfuric acid is made into slurry at 1∶1,and the selenium removal rate is over 98.60 % under the conditions of roasting temperature 680 ℃ and the roasting time 48 h.Based on optimizing the process conditions,renovation is carried out according to production practice,which solves the problems existing in the process and achieves prominent economic benefits.
Keywords:
copper anode slime;copper removal;selenium removal;atmospheric-pressure acid leaching;sulfate roasting
