摘要
为解决盐湖卤水中铷资源的开发利用问题,通过萃取法分离提取卤水中的微量铷元素。以t-BAMBP为萃取剂,磺化煤油为稀释剂,详细考察了料液碱度、振荡速度、振荡时间、萃取温度、萃取剂浓度和相比对萃取的影响。研究确定了在实验室条件下的最佳萃取工艺条件:t-BAMBP浓度1.5 mol/L、料液碱度OH-浓度1.2 mol/L、振荡速度200 r/min、相比1∶0.5、在5℃的条件下萃取5 min,铷的萃取率达98%。
Trace rubidium in brine was separated by extraction in order to solve the problem of rubidium resource in salt lake. The method separating trace rubidium with t-BAMBP in sulfonated kerosene from brine was investigated. The effects of alkalinity of feed solution,shake speed,shake time,temperature of extraction,and concentration of t-BAMBP and phase ratio on extraction were studied in detail. The optimal condition of extraction of trace rubidium under laboratory conditions was determined： 1. 5 mol / L t-BAMBP,1. 2 mol / L Na OH,200 r / min,O / A = 1∶ 0. 5,5 min and 5 ℃,the extraction rate of rubidium reached 98%.
出处
《化学试剂》
CAS
北大核心
2015年第2期161-164,共4页
Chemical Reagents
基金
国家自然科学基金资助项目(21267018)
中国科学院"百人计划"基金资助项目(Y410021011)
青海省科技厅基金资助项目(2012-Z-903
2014-GX-218
2014-2J-726)
西宁市科学技术局基金资助项目(2014-G-05)
关键词
萃取
微量铷
卤水
extraction
trace rubidium
brine
