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有色金属(冶炼部分):2021,(10):126-132
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铜锰渣深度处理回收金属工艺研究及应用
王永浩1, 赵彤2, 岳心圆3
(1.甘肃省生态环境厅;2.金昌市生态环境局;3.兰州金川新材料科技股份有限公司)
Research and Application of Cu-Mn Slag Advanced Treatment Technology for Recovery of Metals
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投稿时间:2021-06-10    修订日期:2021-06-23
中文摘要: 对铜锰渣中金属含量进行分析,经热力学和试验条件下研究提出铜锰渣金属逐一分步沉淀的步骤,比选确定铜锰渣金属分离工序的选择性试剂和最优条件,并进行中试试验。结果表明,最优工艺路线和工艺控制条件为:1)铜锰渣浆化工序温度30 ℃、液固比3.0~3.5、搅拌时间30 min;2)碳酸锰浸出工序温度60~70 ℃、铁粉用量为理论量的0.7±0.05倍、反应时间3.5 h;3)富集铜工序温度30 ℃、液固比1、反应时间3 h;4)回收钴工序温度70~80 ℃、pH=3.0~3.5、搅拌时间30 min;5)回收锰工序温度70~80 ℃、pH=8.0~8.5、搅拌时间60 min。工艺条件稳定性和金属回收率达到预期,产品质量和工艺成熟度达到要求。
中文关键词: 铜锰渣  有价金属  工艺技术  应用
Abstract:Metal contents of Cu-Mn slag were analyzed, step-by-step precipitation of Cu-Mn slag was put forward based on thermodynamics analysis and test, selective reagents and optimum conditions of separation process of Cu-Mn slag were selected and determined, and pilot test was conducted. The results show that the optimal process route and process control conditions are as follows: 1) Temperature of Cu-Mn slurring process is 30 ℃, L/S=3.0~3.5, and stirring time is 30 min. 2) Temperature of manganese carbonate leaching is 60~70 ℃, iron powder dosage is 0.7±0.05 times of theoretical amount, and reaction time is 3.5 h. 3) Temperature of copper enrichment process is 30 ℃, L/S=1, and reaction time is 3 h. 4) Temperature of cobalt recovery process is 70~80 ℃, pH=3.0~3.5, and stirring time is 30 min. 5) Temperature of manganese recovery process is 70~80 ℃, pH=8.0~8.5, and stirring time is 60 min. Stability of process conditions and metal recovery reach expected effect, and product quality and process maturity meet the requirements.
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基金项目:甘肃省固体废物与化学品污染防治科学基金(GSEP-2020-071)
引用文本:
王永浩,赵彤,岳心圆.铜锰渣深度处理回收金属工艺研究及应用[J].有色金属(冶炼部分),2021(10):126-132.
WANG Yong-hao,ZHAO Tong,YUE Xin-yuan.Research and Application of Cu-Mn Slag Advanced Treatment Technology for Recovery of Metals[J].Nonferrous Metals (Extractive Metallurgy),2021(10):126-132.

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