化工矿物与加工2018，Vol.47Issue(5)：21-27,7.DOI:10.16283/j.cnki.hgkwyjg.2018.05.006
盐湖老卤深度浓缩及硫酸锂提取工艺研究
Research on deep concentration of brine and extraction process of lithium sulfate
摘要
Abstract
Research was conducted on the vaporized lithium salts crystallization law and lithium sulfate monohydrate extraction technology in the process of deep evaporation and concentration of sulfate-type lithium bearing brine for lithium extraction. With the brine in East Taijinaier Salt Lake as reference, the vaporized lithium salts crystallization law and the key factors affecting yield of lithium salts were obtained by multi-step evaporation and concentration using isothermal forced evaporation device. The high concentrated lithium brine with Li+content of 3. 14％and the ratio of Mg/Li reduced from 24. 52 to 1. 64 were obtained by the processes of removing sulfate in brine and multi-step deep evaporation. The lithium sulfate monohydrate was further experimentally produced and the key process data of lithium sulfate production by brine conversion were obtained with the non-recirculated recovery-rate for Li2SO4 up to 78. 18％. The experimental results would be valuable for the development and comprehensive utilization of the salt lake sulfate-type lithium resources.关键词
东台吉乃尔盐湖/蒸发浓缩/一水硫酸锂/锂盐提取Key words
Dongtai Jinaier Salt Lake/lithium salts concentration and evaporation/lithium sulfate monohydrate/lithium salts extraction分类
化学化工引用本文复制引用
代亚萍,郭建,唐发满,周桓..盐湖老卤深度浓缩及硫酸锂提取工艺研究[J].化工矿物与加工,2018,47(5):21-27,7.基金项目
国家自然科学委员会联合基金(U1407204) （U1407204）
长江学者和创新团队([2013]-373) （[2013]-373）
天津市教育委员会创新团队的培育计划(TD12-5004). （TD12-5004）
