Extraction of Cesium and Rubidium with 4-tert-butyl-2- (α-methylbenzyl) phenol from Salt Lake Brine
投稿时间:2019-03-06  修订日期:2019-03-14
DOI:10.12119/j.yhyj.201902010
中文关键词:  
英文关键词:Salk lake brine  Extraction  t-BAMBP  Separation  Cesium  Rubidium
基金项目:
作者单位E-mail
PANG Deng-ke Key Laboratory of Comprehensive and Highly Efficient Utilization of Salt Lake Resources, Qinghai Institute of Salt Lakes, Chinese Academy of Sciences, Xining,810008,China
Key Laboratory of Salt Lake Resources Chemistry of Qinghai Province, Xining,810008,China
University of Chinese Academy of Sciences, Beijing,100049,China 
pangdengke17@ucas.ac.cn 
FU Zhen-hai Key Laboratory of Comprehensive and Highly Efficient Utilization of Salt Lake Resources, Qinghai Institute of Salt Lakes, Chinese Academy of Sciences, Xining,810008,China
Key Laboratory of Salt Lake Resources Chemistry of Qinghai Province, Xining,810008,China 
 
ZHANG Zhi-hong Key Laboratory of Salt Lake Resources Chemistry of Qinghai Province, Xining,810008,China zhangzh@isl.ac.cn 
ZHANG Yong-ming Key Laboratory of Comprehensive and Highly Efficient Utilization of Salt Lake Resources, Qinghai Institute of Salt Lakes, Chinese Academy of Sciences, Xining,810008,China
Key Laboratory of Salt Lake Resources Chemistry of Qinghai Province, Xining,810008,China 
 
MA Yan-fang Key Laboratory of Comprehensive and Highly Efficient Utilization of Salt Lake Resources, Qinghai Institute of Salt Lakes, Chinese Academy of Sciences, Xining,810008,China
Key Laboratory of Salt Lake Resources Chemistry of Qinghai Province, Xining,810008,China 
 
WANG Jing Key Laboratory of Comprehensive and Highly Efficient Utilization of Salt Lake Resources, Qinghai Institute of Salt Lakes, Chinese Academy of Sciences, Xining,810008,China
Key Laboratory of Salt Lake Resources Chemistry of Qinghai Province, Xining,810008,China 
 
ZHAO Dong-mei Key Laboratory of Comprehensive and Highly Efficient Utilization of Salt Lake Resources, Qinghai Institute of Salt Lakes, Chinese Academy of Sciences, Xining,810008,China
Key Laboratory of Salt Lake Resources Chemistry of Qinghai Province, Xining,810008,China 
 
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中文摘要:
      
英文摘要:
      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.
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