有色金属科学与工程
有色金屬科學與工程
유색금속과학여공정
Nonferrous Metals Science and Engineering
2015年
5期
17-21
,共5页
杨少华%赖晓晖%王君%王浩然%谢宝如
楊少華%賴曉暉%王君%王浩然%謝寶如
양소화%뢰효휘%왕군%왕호연%사보여
铷%萃取%分离效果%萃取率%t-BAMBP
銣%萃取%分離效果%萃取率%t-BAMBP
여%췌취%분리효과%췌취솔%t-BAMBP
rubidium%extraction%separation efficiency%extraction rate%t-BAMBP
以二甲苯为稀释剂的t-BAMBP萃取体系,从高钾钠卤水中萃取分离铷.研究有机相配比、料液碱度、相比、萃取时间及萃取温度对萃取分离铷效果的影响.结果表明:在有机相组成(体积分数)为30%t-BAMBP+70% 二甲苯,料液Rb+初始浓度为0.011 7 mol/L,料液碱度为0.4 mol/L,相比VO/VA (有机相体积比水相体积)为1/1,萃取时间为4 min,萃取温度为21℃的条件下,经过五级逆流萃取,铷萃取率达95.5%.通过对料液进行多段萃取处理,可获得高纯度的铷盐.
以二甲苯為稀釋劑的t-BAMBP萃取體繫,從高鉀鈉滷水中萃取分離銣.研究有機相配比、料液堿度、相比、萃取時間及萃取溫度對萃取分離銣效果的影響.結果錶明:在有機相組成(體積分數)為30%t-BAMBP+70% 二甲苯,料液Rb+初始濃度為0.011 7 mol/L,料液堿度為0.4 mol/L,相比VO/VA (有機相體積比水相體積)為1/1,萃取時間為4 min,萃取溫度為21℃的條件下,經過五級逆流萃取,銣萃取率達95.5%.通過對料液進行多段萃取處理,可穫得高純度的銣鹽.
이이갑분위희석제적t-BAMBP췌취체계,종고갑납서수중췌취분리여.연구유궤상배비、료액감도、상비、췌취시간급췌취온도대췌취분리여효과적영향.결과표명:재유궤상조성(체적분수)위30%t-BAMBP+70% 이갑분,료액Rb+초시농도위0.011 7 mol/L,료액감도위0.4 mol/L,상비VO/VA (유궤상체적비수상체적)위1/1,췌취시간위4 min,췌취온도위21℃적조건하,경과오급역류췌취,여췌취솔체95.5%.통과대료액진행다단췌취처리,가획득고순도적여염.
T-BAMBP extraction system with xylene as diluent was applied to separate rubidium from brine containing high potassium and sodium. The influences of organic phase composition, feed liquid alkalinity, organic-aqueous phase ratio, extraction time and temperature on extraction and separation efficiency were investigated. The results show that extraction rate of rubidium after five staged countercurrent extraction reaches 95.5 % using 30 % volume fraction t-BAMBP contained organic extractant with 0.4 mol/L feed liquid alkalinity, 0.011 7 mol/L initial concentration of Rb +, 1:1 phase ratio, 4 min extraction time and 21 ℃extraction temperature. Highly purified rubidium salt can be obtained through multistage extraction.
