2-膦酸丁烷-1,2,4-三羧酸用于稀土酸浸液络合沉淀除铝研究  

Aluminum Removal from Acid Leaching Solution of Rare Earth Ore by Complex Precipitation of 2-Phosphonobutane-1,2,4-Tricarboxylic Acid

作　　者：龙光武 李金辉[1,2,3] 温耀儒 褚宇航 刘晋彪 王瑞祥[1,2,3] 徐志峰[2,3,4] LONG Guang-wu;LI Jin-hui;WEN Yao-ru;CHU Yu-hang;LIU Jin-biao;WANG Rui-xiang;XU Zhi-feng(Department of Materials Metallurgy and Chemistry,Jiangxi University of Science and Technology,Ganzhou 341000,Jiangxi,China;Ganzhou Engineering Technology Research Center of Green Metallurgy and Process Intensification,Ganzhou 341000,Jiangxi,China;Key Laboratory of Ionic Rare Earth Resources and Environment,Ministry of Natural Resources,Ganzhou 341000,Jiangxi,China;Jiangxi Vocational College of Applied Technology,Ganzhou 341000,Jiangxi,China)

机构地区：[1]江西理工大学材料冶金化学学部,江西赣州341000 [2]赣州市绿色冶金与过程强化工程技术研究中心,江西赣州341000 [3]自然资源部离子型稀土资源与环境重点实验室,江西赣州341000 [4]江西应用技术职业学院,江西赣州341000

出　　处：《矿冶工程》2022年第2期93-95,101,共4页Mining and Metallurgical Engineering

基　　金：国家自然科学基金(51974140,52064018);国家重大项目研发计划(2019YFC1908404,2019YFC1908405);江西省高等学校井冈学者特聘教授岗位资助;江西省科技厅重大项目(20192ACB70017);江西省离子型稀土资源绿色开发与高值利用国家重点实验室培育计划(20194AFD44003)。

摘　　要：采用2-膦酸丁烷-1,2,4-三羧酸(PBTCA)从离子吸附型稀土矿石浸出液中络合沉淀除铝,考察了PBTCA用量、溶液pH值、反应时间以及反应温度对铝离子分离效果的影响。结果表明,在PBTCA与Al^(3+)物质的量比为1∶5、溶液pH=4.5、反应温度30℃、反应时间10 min条件下,Al^(3+)沉淀率达98.39%,而稀土损失率仅5.39%,除铝效果较好。2-phosphonobutane-1,2,4-tricarboxylic acid(PBTCA) was used to remove aluminum from leach solution of ion-adsorbed rare earth ores by complex precipitation,and the effects of PBTCA dosage,pH value of solution,reaction time and reaction temperature on the separation of aluminum ions were all investigated.With PBTCA and aluminum ions at a molar ratio of 1∶ 5,the pH of solution at 4.5,the reaction temperature at 30 ℃ and the reaction time of 10 min,the precipitation rate of Al^(3+) is 98.39%,while the loss rate of rare earth is only 5.39%,indicating a good aluminum removal effect.

关 键 词：稀土 稀土浸出液 PBTCA 络合 除铝 

分 类 号：TF821[冶金工程—有色金属冶金]