摘要
根据Re等金属赋存状态,采用硫酸+硝酸体系对富铼渣进行氧化浸出,考察各因素对浸出率的影响大小。通过单因素试验得出最优试验条件为:液固比3:1,反应时间2h,浸出温度60℃,硝酸质量浓度5%,硫酸质量浓度15%,Re、Cu的浸出率分别达到94%、95%以上,As、Bi的浸出率分别在50%、2%以下。
According to the occurrence state of rhenium and other metals,the oxidation leaching of rhenium-rich slag was carried out by sulfuric acid+nitric acid system.The influence of various factors on the leaching rate was investigated.The optimal experimental conditions are as follows:liquid-solid ratio 3:1,reaction time 2 h,leaching temperature 60℃,mass concentration of nitric acid 5%,mass concentration of sulfuric acid 15%,leaching rates of Re and Cu 94% and 95%,respectively,leaching rates of As and Bi 50% and 2%respectively.
作者
袁晶晶
杨斌
殷勤生
张晓星
鲁兴武
YUAN Jingjing;YANG Bin;YIN Qinsheng;ZHANG Xiaoxing;LU Xingwu(Technology Development Service Center of Baiyin,Baiyin 730900,China;Northwest Research Institute of Mining and Metallurgy,Baiyin 730900,China;Baiyin Nonferrous Group Co.Lid.,Baiyin 730900,China;School of Metallurgy and Environment of Central South University,Changsha 410083,China)
出处
《甘肃冶金》
2024年第2期92-94,99,共4页
Gansu Metallurgy
基金
甘肃省重点研发计划项目-铜冶炼污酸中铼回收及产品高值化关键技术研发(20YF3GD037)。
关键词
铼渣
氧化
浸出
硝酸
rhenium slag
oxidation
leach
nitric acid
