Solubility of poly(ethylene glycol)nonylphenyl ether in supercritical carbon dioxide

被引：13

作者：

Dimitrov, K

Boyadzhiev, L

Tufeu, R

Cansell, F

Barth, D

机构：

[1] Bulgarian Acad Sci, Inst Chem Engn, Sofia 1113, Bulgaria

[2] Univ Paris 13, CNRS, Lab Ingn Mat & Hautes Press, F-93430 Villetaneuse, France

[3] ENSIC, Lab Thermodynam Separat, F-54001 Nancy, France

来源：

JOURNAL OF SUPERCRITICAL FLUIDS | 1998年 / 14卷 / 01期

关键词：

carbon dioxide; mass transfer kinetics; poly(ethylene glycol)s; polymer fractionation; supercritical fluid extraction;

D O I：

10.1016/S0896-8446(98)00093-X

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The solubility of (polyethylene glycol)nonylphenyl ether (PEG-NPE) of weight average molar mass 2500 g/mol in supercritical carbon dioxide was studied and the effects of the main parameters, such as pressure, temperature, and solvent density, were evaluated. The individual i-mer partition coefficients were obtained for all polymer compositions. The kinetics of supercritical extraction of PEG-NPE in a stirred batch contactor were studied also. The polymer extraction rate was investigated as a function of the agitator speed. Mass transfer coefficients of the polymer and those of three selected fractions in a solvent-rich phase were evaluated. (C) 1998 Elsevier Science B.V. All rights reserved.

引用

页码：41 / 47

页数：7

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