Mextral 984H从页岩提钒浸出液中萃取V(Ⅴ)的研究  

Extraction of Vanadium (Ⅴ) from Shale Leaching Solution with Mextral 984H

作　　者：何野 黄晶[1,2,3,4] 张一敏 刘红[1,2,3,4] 胡鹏程 罗大双[1,2,3,4] HE Ye;HUANG Jing;ZHANG Yi-min;LIU Hong;HU Peng-cheng;LUO Da-shuang(School of Resources and Environmental Engineering,Wuhan University of Science and Technology,Wuhan 430081,China;State Environmental Protection Key Laboratory of Mineral Metallurgical Resources Utilization and Pollution Control,Wuhan University of Science and Technology,Wuhan 430081,China;Hubei Provincial Engineering Technology Research Center of High Efficient Cleaning Utilization for Shale Vanadium Resource,Wuhan 430081,China;Hubei Provincial Collaborative Innovation Center for High Efficient Utilization of Vanadium Resource,Wuhan 430081,China;School of Resources and Environmental Engineering,Wuhan University of Technology,Wuhan 430070,China)

机构地区：[1]武汉科技大学资源与环境工程学院,武汉430081 [2]武汉科技大学国家环境保护矿冶资源利用与污染控制重点实验室,武汉430081 [3]湖北省页岩钒资源高效清洁利用工程技术研究中心,武汉430081 [4]钒资源高效利用湖北省协同创新中心,武汉430081 [5]武汉理工大学资源与环境工程学院,武汉430070

出　　处：《有色金属（冶炼部分）》2019年第10期33-38,共6页Nonferrous Metals（Extractive Metallurgy)

基　　金：国家自然科学基金资助项目(51774215);湖北省杰出青年基金资助项目(2018CFA068)

摘　　要：考察Mextral 984H螯合萃取体系下料液相pH、相比、萃取剂浓度、萃取时间对钒和杂质离子铁、铝、镁、钾、磷的萃取率的影响。结果表明:在料液pH=1.0、萃取时间20 min、相比O/A=1/2、萃取剂浓度20%、稀释剂为磺化煤油的条件下,酸浸液中钒一级萃取率为79.43%,二级萃取率达到99.06%,且杂质铁、铝、镁、钾和磷的萃取率均低于2%。Mextral 984H通过羟基和肟基共同作用螯合萃取V(Ⅴ),实现了高酸多杂页岩提钒浸出液中钒的高效分离提取。Effects of pH value,phase ratio,extractant Mextral 984H concentration and extraction time on extraction rates of vanadium and impurity ions such as iron,aluminum,magnesium,potassium and phosphorus in Mextral 984H chelating extraction system were investigated.The results show that the first-stage extraction rate of vanadium in simulated acid leaching solution is 79.43%,the two-stage extraction rate is 99.06%and extraction rates of iron,aluminum,magnesium,potassium and phosphorus are all less than 2%,under the optimum conditions including pH value of feed solution of 1.0,extraction time of 20 min,phase ratio of O/A=1/2,extractant Mextral 984H concentration of 20%,and sulfonated kerosene as diluent.Mextral 984H can extract V(Ⅴ)by chelating together with hydroxyl and oxime group.Efficient separation of vanadium from high acid multi-impurity leachate of shale is achieved.

关 键 词：页岩钒 酸浸液 Mextral 984H 溶剂萃取 

分 类 号：TF841.3[冶金工程—有色金属冶金]