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Citation: WANG Yujia, WANG Pan, WEI Shunan, DONG Lichun, YANG Nan, YOU Xinqiang. The Analytical Method for the Composion of Depolymerization Solution of 1, 4-Butanediol's Distillation Substrate[J]. Chinese Journal of Applied Chemistry, ;2012, 29(2): 228-232. doi: 10.3724/SP.J.1095.2012.00091 shu

The Analytical Method for the Composion of Depolymerization Solution of 1, 4-Butanediol's Distillation Substrate

WANG Yujia ^a ,
WANG Pan ^b ,
WEI Shunan ^b,, ,
DONG Lichun ^b ,
YANG Nan ^b ,
YOU Xinqiang ^b

1.
a Bioengineering College of Chongqing University, Chongqing 400000, China;
2.
b College of Chemistry and Chemical Engineering of Chongqing University, Chongqing 400000, China

Corresponding author: WEI Shunan,
Received Date: 9 March 2011
Available Online: 20 May 2011
Fund Project: 中央高校基本科研业务费(CDJZR10220010)资助项目 (CDJZR10220010)

Liquid-liquid extraction(LLE) was used to analyze the contents of 1,4-butanediol(BDO) in the depolymerization solution.The LLE data for the system were measured at 30℃ when n-octanol was used as extracting reagent.Activity coefficient models were established to correlate the LLE data of the system using the Extended-UNIQUAC equation,in which the binary interaction energy parameters of water+BDO+n-octanol ternary system were obtained through a simplex fitting method.The results show that the composition of raffinate phase can be predicted reliably by analyzing the composition of extract phase.Therefore,the contents of BDO in the solution can be calculated.The method is accurate and simple and can be used as the common analytic method for this system.
- butanediol,
- composition analysis,
- ternary liquid-liquid equilibrium,
- Extend-UNIQUAC model
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