摘要
Li-LSX分子筛交换后母液中的Li+(0.04 mol/L)经磷酸三丁酯(TBP)萃取进入有机相.采用盐酸为反萃剂,对萃取之后有机相中的Li+进行反萃,并考察了反萃相比、盐酸浓度、温度等因素对反萃过程的影响规律,得到了适宜的反萃条件:相比1∶1、盐酸浓度5 mol/L以上、温度为室温.同时对萃取剂的循环利用和该方法的工业应用前景进行了初步探讨.
Lithium ion transfered into organic phase from exchanged mother liquids of Li-LSX zeolite after extraction by tri-n-butyl phosphate（TPB）.In this article,the anti-extraction of lithium ion from TBP by hydrochloric acid was studied.And the effects of phase ratio,hydrochloric acid concentration and temperature on the anti-extraction technology were analyzed in details.The optimal anti-extraction conditions are found as following： phase ratio is about 1∶1;hydrochloric acid concentration is more than 5 mol/L;room temperature.Furthermore,the recycling of extractant and the industrial prospect of this method were investigated preliminarily.
出处
《北京工业大学学报》
CAS
CSCD
北大核心
2010年第11期1537-1540,共4页
Journal of Beijing University of Technology
基金
国家"八六三"计划资助项目(2009AA05Z437)
