摘要
采用氨水和氢氧化钠溶液两次沉淀除镁,可以实现高镁锂比的盐湖卤水的提锂和碳酸锂制备。实验结果表明:该法能够使镁锂比为40∶1的盐湖卤水得到较好分离。母液蒸发浓缩提锂后,在反应温度90℃,反应时间40 min,沉锂剂滴加速度25 mL/min条件下能够制得高纯度碳酸锂。
By using ammonia water and sodium hydroxide solution can separate the salt lake brine, the results show that the method can make the Mg-Li ratio of magnesium and lithium ions in 40:1 salt lake brine separated well. And through evaporating mother liquor and controlling reactor conditions such as reaction temperature 90℃, reaction time 40 min, dropping speed 25 mL/min,the high purity lithium carbonate can be prepared.
出处
《科学技术与工程》
北大核心
2012年第32期8757-8760,共4页
Science Technology and Engineering
基金
青海省国际科技合作项目(2011-11-801)
青海大学中青年基金项目(2010-QG-11)资助
关键词
沉淀法
镁锂比
碳酸锂
precipitation separation method magnesium lithium ratio lithium carbonate