| 错流萃取分离1,1,2-三氯乙烷——DMF体系的实验研究 |
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| 引用本文： | 苏复,杨广玉,何佳艺,崔庆帅,李星,林军.错流萃取分离1,1,2-三氯乙烷——DMF体系的实验研究[J].南京师范大学学报,2014(3):89-92. |
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| 作者姓名： | 苏复 杨广玉 何佳艺 崔庆帅 李星 林军 |
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| 作者单位： | 南京师范大学化学与材料科学学院,江苏 南京,210023 |
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| 基金项目： | 江苏省产学研前瞻性联合研究项目 |
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| 摘 要： | 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.
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| 关 键 词： | 1 1 2-三氯乙烷 DMF 错流液液萃取 |
Experiment of Cross-Flow Extraction for Separating 1,1,2-Trichloroethane-DMF System |
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| Su Fu,Yang Guangyu,He Jiayi,Cui Qingshuai,Li Xing,Lin Jun.Experiment of Cross-Flow Extraction for Separating 1,1,2-Trichloroethane-DMF System[J].Journal of Nanjing Nor Univ: Eng and Technol,2014(3):89-92. |
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| Authors: | Su Fu Yang Guangyu He Jiayi Cui Qingshuai Li Xing Lin Jun |
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| Affiliation: | (School of Chemistry and Materials Science,Nanjing Normal University, Nanjing 210023, China) |
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| Abstract: | 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. |
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| Keywords: | 1 1 2-trichloroethane DMF cross-flow liquid-liquid extraction |
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