电池级碳酸锂生产中钙镁硼的络合分离试验研究  

Experimental Study on Ca-Mg-B Complexation Separation in the Production of Battery-grade Lithium Carbonate

作　　者：马爱军[1] 鲁兴武[1] 张恩玉[1] 程亮[1] 何国才[1] 

机构地区：[1]西北矿冶研究院冶金新材料研究所,甘肃白银730900

出　　处：《稀有金属与硬质合金》2015年第1期36-38,共3页Rare Metals and Cemented Carbides

基　　金：科技部科研院所技术开发研究专项资金(2012EG115010)

摘　　要：采用Bys-201型络合剂在氢氧化锂完成液的碳化过程中分离钙镁硼,考察了碳化温度和时间、CO2气体流速、络合剂用量对钙镁硼络合分离的影响,确定了最优工艺条件。本工艺钙镁硼提取率均可达98%以上,产出的碳酸锂产品质量达到了电池级碳酸锂的国家标准。Calcium,magnesium and boron were separated from lithium hydroxide completed liquid during carbonization with Bys-201 complexing reagent.Investigation is made on the effects of carbonization temperature and time,CO2 gas flow rate and dosage of complexing agent on complexation separation of calcium,magnesium and boron.And the optimal technical conditions were determined.The extraction rates of calcium,magnesium and boron can reach above 98% with the above process,and the produced lithium carbonate reaches the national standard for battery-grade lithium carbonate.

关 键 词：碳酸锂 钙镁硼 络合分离 碳化反应 新型络合剂 

分 类 号：TM912[电气工程—电力电子与电力传动]