Extraction of Cesium and Rubidium with 4-tert-butyl-2-(α-methylbenzyl) phenol from Salt Lake Brine

被引：0

作者：

PANG Dengke ^{[1
,2
,3
]}

FU Zhenhai ^{[1
,2
]}

ZHANG Zhihong ^{[2
]}

ZHANG Yongming ^{[1
,2
]}

MA Yanfang ^{[1
,2
]}

WANG Jing ^{[1
,2
]}

ZHAO Dongmei ^{[1
,2
]}

机构：

[1] Key Laboratory of Comprehensive and Highly Efficient Utilization of Salt Lake Resources,Qinghai Institute of Salt Lakes,Chinese Academy of Sciences

[2] Key Laboratory of Salt Lake Resources Chemistry of Qinghai Province

[3] University of Chinese Academy of

来源：

盐湖研究 | 2019年 / 27卷 / 02期

关键词：

Salk lake brine; Extraction; t-BAMBP; Separation; Cesium; Rubidium;

D O I：

暂无

中图分类号：

TS396.5 [稀有元素及其盐类的制取];

学科分类号：

摘要：

This work shows the extraction of cesium（ Cs+） and rubidium（ Rb+） from salt lake brine containing potassium（ K+） and magnesium( Mg2+). The results show that 4-tert-butyl-2-（ α-methylbenzyl） phenol（ t-BAMBP） diluted in sulfonated kerosene（ SK） has an excellent extraction effect. Infrared spectroscopic studies indicate that polymerize to form the dimer in the t-BAMBP when Cs+or Rb+were extracted. The effects of K+,Mg2+,t-BAMBP concentration,the volume ratio of organic phase to aqueous phase（ O/A） and the alkalinity（ pH） of aqueous phase were investigated.The K+and Mg2+should be eliminated through precipitating before the extraction and separation of Cs+and Rb+. The optimum extraction conditions of the experimental brine were as follows: 0. 8 mol/L t-BAMBP diluted in SK,pH≥13,a phase ratio of 1: 1,and an extraction contact time of 2 min at room temperature. The optimal extraction yields of Cs+and Rb+were as high as 100% and 85. 8%,in addition,8. 76% of K+was co-extracted. Further work would increase the extraction yield and selectivity of Rb+and realize the efficient separation of Cs+and Rb+from brine.

引用

页码：111 / 119

页数：9

共 12 条

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