摘要
采用低温碱性熔炼处理铜阳极泥(CAS),研究熔炼浸出过程各有价金属的分离富集行为。分析碱料比、熔炼温度、熔炼时间、浸出温度、浸出时间和液固比等6个因素对金属浸出率的影响。结果表明:优化条件为碱料比为0.5,熔炼温度为600℃,熔炼时间为60 min,浸出温度为70℃,浸出时间为60 min,液固比为12.5 m L/g。在此优化条件下,Se和As的浸出率分别达95.79%和96.83%,Cu、Pb、Sb和Te的浸出率分别为0.16%、3.36%、1.02%和0.05%,实现了铜阳极泥中有价金属的有效分离和富集。
The valuable metals were separated from copper anode slime （CAS） by low-temperature alkaline smelting process. The effects of the mass ratio of NaOH, smelting temperature, smelting time, leaching temperature, leaching time and liquid-solid ratio on the leaching efficiency of metals were investigated. The results show that the optimum conditions are determined as follows： m（NaOH）/m（CAS） is 0.5, smelting temperature is 600 ℃, smelting time is 60 min, leaching temperature is 70 ℃, leaching time is 60 min and liquid-solid ratio is 12.5 mL/g. Under the optimum conditions, leaching efficiencies of Se and As are 95.79% and 96.83%, while the leaching efficiencies of Cu, Pb, Sb and Te are 0.16%, 3.36%, 1.02% and 0.05%, respectively, leading to the separation and enrichment of valuable metals from copper anode slime relatively.
出处
《中国有色金属学报》
EI
CAS
CSCD
北大核心
2015年第8期2243-2250,共8页
The Chinese Journal of Nonferrous Metals
基金
国家自然科学基金重点项目(51234009)
国家自然科学基金面上项目(51074190)
湖南省自然科学基金青年基金资助项目(14JJ3017)
教育部博士点基金资助项目(20110162110049)
关键词
低温碱性熔炼
铜阳极泥
有价金属
分离
富集
low-temperature alkaline smelting
copper anode slime
valuable metal
separation
enrichment
作者简介
通信作者：李拣，讲师，博士；电话：0731-88876255；E-mail：yejin0l3-18@163．com
