南京师范大学学报(工程技术版)
南京師範大學學報(工程技術版)
남경사범대학학보(공정기술판)
JOURNAL OF NANJING NORMAL UNIVERSITY(ENGINEERING AND TECHNOLOGY)
2014年
3期
89-92
,共4页
苏复%杨广玉%何佳艺%崔庆帅%李星%林军
囌複%楊廣玉%何佳藝%崔慶帥%李星%林軍
소복%양엄옥%하가예%최경수%리성%림군
1,1,2-三氯乙烷%DMF%错流液液萃取
1,1,2-三氯乙烷%DMF%錯流液液萃取
1,1,2-삼록을완%DMF%착류액액췌취
1,1,2-trichloroethane%DMF%cross-flow liquid-liquid extraction
在常温、常压下采用错流液液萃取装置,研究了以水为萃取剂,多级错流萃取分离1,1,2-三氯乙烷-DMF体系的工艺条件,综合考察了溶剂比和萃取级数对错流萃取结果的影响,结果表明在溶剂比S∶F=1∶1的比例下,采用四级萃取可使萃余相中1,1,2-三氯乙烷的含量达到99.5%以上,且DMF的回收率同时达到99.5%以上.
在常溫、常壓下採用錯流液液萃取裝置,研究瞭以水為萃取劑,多級錯流萃取分離1,1,2-三氯乙烷-DMF體繫的工藝條件,綜閤攷察瞭溶劑比和萃取級數對錯流萃取結果的影響,結果錶明在溶劑比S∶F=1∶1的比例下,採用四級萃取可使萃餘相中1,1,2-三氯乙烷的含量達到99.5%以上,且DMF的迴收率同時達到99.5%以上.
재상온、상압하채용착류액액췌취장치,연구료이수위췌취제,다급착류췌취분리1,1,2-삼록을완-DMF체계적공예조건,종합고찰료용제비화췌취급수대착류췌취결과적영향,결과표명재용제비S∶F=1∶1적비례하,채용사급췌취가사췌여상중1,1,2-삼록을완적함량체도99.5%이상,차DMF적회수솔동시체도99.5%이상.
The multilevel cross-flow extraction is used to separate 1,1,2-Trichloroethane-DMF System with water as extraction agent. The experimental results show that the content of 1,1,2-trichloroethane could be refined to 99. 5% from raffinate and that the recovery rate of DMF could be refined to 99. 5% through four times cross-flow extraction with controlling the solvent ratio as 1∶1.