Liquid-liquid equilibria of poly(ethylene glycol) 2000+sodium citrate plus water at (25, 30, 35, 40, and 45) °C

被引：68

作者：

Murugesan, T ^{[1
]}

Perumalsamy, M ^{[1
]}

机构：

[1] Anna Univ, Dept Chem Engn, AC Coll Technol, Madras 600025, Tamil Nadu, India

来源：

JOURNAL OF CHEMICAL AND ENGINEERING DATA | 2005年 / 50卷 / 04期

关键词：

D O I：

10.1021/je050081k

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

The effect of temperature on the liquid-liquid equilibrium for the aqueous two-phase system containing poly(ethylene glycol) 2000 + sodium citrate + water was studied at (25, 30, 35, 40, and 45) degrees C. An equation for the binodal curves was obtained in terms of the concentrations of PEG 2000 and sodium citrate, and the temperature effect was also incorporated into the equation parameters. The tie lines were correlated using the Othmer-Tobias and Bancraft equations as well as osmotic virial equation. The mean deviations between the experimental and calculated equilibrium compositions in the top and bottom phases were < 1 %.

引用

页码：1392 / 1395

页数：4

共 13 条

[1]

Albertsson P.A., 1986, PARTITION CELL PARTI

[2] LIQUID-LIQUID EQUILIBRIUM OF AQUEOUS MIXTURES OF POLY(PROPYLENE GLYCOL) WITH NACL [J].

CHELUGET, EL ;

GELINAS, S ;

VERA, JH ;

WEBER, ME .

JOURNAL OF CHEMICAL AND ENGINEERING DATA, 1994, 39 (01) :127-130

[3] AN APPROACH TO STUDY OF PHASE SEPARATION IN TERNARY AQUEOUS SYSTEMS [J].

EDMOND, E ;

OGSTON, AG .

BIOCHEMICAL JOURNAL, 1968, 109 (04) :569-&

[4] Liquid-liquid equilibrium in the system poly(ethylene glycol) plus MgSO4 plus H2O at 298 K [J].

GonzalezTello, P ;

Camacho, F ;

Blazquez, G ;

Alarcon, FJ .

JOURNAL OF CHEMICAL AND ENGINEERING DATA, 1996, 41 (06) :1333-1336

[5] Liquid-liquid equilibrium of the poly(ethylene glycol) plus sodium nitrate plus water system at 298.15 K [J].

Graber, TA ;

Taboada, ME ;

Cartón, A ;

Bolado, S .

JOURNAL OF CHEMICAL AND ENGINEERING DATA, 2000, 45 (02) :182-184

[6] LIQUID-LIQUID EQUILIBRIA OF AQUEOUS 2-PHASE SYSTEMS CONTAINING POLYETHYLENE-GLYCOL AND DIPOTASSIUM HYDROGENPHOSPHATE [J].

MISHIMA, K ;

NAKATANI, K ;

NOMIYAMA, T ;

MATSUYAMA, K ;

NAGATANI, M ;

NISHIKAWA, H .

FLUID PHASE EQUILIBRIA, 1995, 107 (02) :269-276

[7] Liquid-liquid extraction data - Toluene and acetaldehyde systems [J].

Othmer, DF ;

Tobias, PE .

INDUSTRIAL AND ENGINEERING CHEMISTRY, 1942, 34 :690-692

[8] Liquid-liquid and liquid-liquid-solid equilibrium in Na2CO3-PEG-H2O [J].

Taboada, ME ;

Asenjo, JA ;

Andrews, BA .

FLUID PHASE EQUILIBRIA, 2001, 180 (1-2) :273-280

[9]

VERNAU J, 1990, BIOTECHNOL APPL BIOC, V12, P397

[10] LIQUID-LIQUID PHASE-EQUILIBRIA OF AQUEOUS 2-PHASE SYSTEMS CONTAINING SALTS AND POLYETHYLENE-GLYCOL [J].

VOROS, N ;

PROUST, P ;

FREDENSLUND, A .

FLUID PHASE EQUILIBRIA, 1993, 90 (02) :333-353

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