摘要
采用单因素和正交试验法研究了常压下用硫酸从橄榄石中溶解浸出Mg2+,考察了橄榄石颗粒粒度、浸出温度、硫酸浓度、浸出时间、液固体积质量比和搅拌速度对Mg2+浸出率的影响。结果表明:温度对Mg2+浸出率的影响显著;在90℃、硫酸浓度4 mol/L、搅拌速度400r/min、浸出时间180 min、橄榄石颗粒粒度-63μm和液固体积质量比20mL/g条件下,Mg2+浸出率达99%。
The experiment of leaching of Mg2+from olivine using sulfuric acid under atmospheric were studied using single-factor experiments and orthogonal experiments.The effects of particle size,leaching temperature,sulfuric acid concentration,leaching time,liquid-to-solid ratio and stirring speed on leaching rate of Mg2+were investigated.The results show that the temperature has a significant effect on the leaching rate of Mg2+.Under the optimum leaching conditions of leaching temperature of 90℃,sulfuric acid concentration of 4 mol/L,stirring speed of 400 r/min,leaching time of 180 min,olivine particle size of-63μm and liquid-to-solid ratio of 20 mL/g,the leaching rate of Mg2+can reach 99%.This study provides technical basis for the comprehensive utilization of olivine mineral.
作者
崔兆纯
王玲
李存国
韩威
聂轶苗
刘淑贤
范晨子
王龙
CUI Zhaochun;WANG Ling;LI Cunguo;HAN Wei;NIE Yimiao;LIU Shuxian;FAN Chenzi;WANG Long(College of Mining Engineering,North China University of Science and Technology,Hebei Province Key Laboratory of Mining Exploitation and Security Technology,Tangshan 063210,China;Center for Innovation and Entrepreneurship,Tangshan College,Tangshan 063000,China;National Research Center for Geoanalysis,Beijing 100037,China)
出处
《湿法冶金》
CAS
北大核心
2020年第1期12-17,共6页
Hydrometallurgy of China
基金
中国地质调查项目(DD20190589)
河北省自然科学基金资助项目(E2019209494)
河北省高等学校科学研究计划项目(QN2015091)
唐山市科技局项目(17110219a)
唐山市工业固体废弃物清洁利用基础创新团队项目(19130207C)
关键词
橄榄石
酸溶
镁离子
正交试验
浸出
olivine
acid dissolution
Mg2+
orthogonal experiment
leaching
