| 溶液化学专刊 |
| |
| 引用本文： | 庞登科.溶液化学专刊[J].盐湖研究,2019,27(1). |
| |
| 作者姓名： | 庞登科 |
| |
| 作者单位： | 中国科学院青海盐湖研究所 |
| |
| 摘 要： | The present work are extract cesium (Cs+) and rubidium (Rb+) from the salt lake brine containing the potassium (K+) and magnesium (Mg2+) after concentrated through evaporation. It has excellent effect of extraction that 4-sec-butyl-2-(α-methylbenzyl) phenol (t-BAMBP) was diluted in the Sulfonated Kerosene (SK). The infrared spectrum studies indicate that polymerize to form the dimer in the t-BAMBP when Cs+ or Rb+ were extracted. The effect of K+ and 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 precipitation before extraction and separation Cs+ and Rb+. The experimental brine was extracted of optimum conditions were using 0.8 mol/L t-BAMBP in SK, the pH exceed 13, and O/A of 1:1 for 2 min contact time under room temperature. The optimal extraction yields of Cs+ and Rb+ up to 100% and 85.8%, and 8.76% K+ was co-extracted. Further work target to increase theSextractionSyield and selectivity ofSRb+, and realize the efficient seperation of Cs+ and Rb+ products .
|
| 关 键 词： | 铷 铯 |
| 收稿时间： | 2019/3/5 0:00:00 |
| 修稿时间： | 2019/4/8 0:00:00 |
|
| 点击此处可从《盐湖研究》浏览原始摘要信息 |
| 点击此处可从《盐湖研究》下载免费的PDF全文 |
|
