期刊
CALPHAD-COMPUTER COUPLING OF PHASE DIAGRAMS AND THERMOCHEMISTRY
卷 32, 期 4, 页码 655-660出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.calphad.2008.09.006
关键词
Liquid-liquid equilibrium; Polyethylene glycol; Di-potassium tartrate; Di-potassium oxalate; Extended NRTL model
Phase diagrams and liquid-liquid equilibrium (LLE) data of aqueous polyethylene glycol 4000 (PEG(4000)) + di-potassium tartrate or potassium sodium tartrate and aqueous PEG(4000) + di-potassium oxalate systems have been determined experimentally at 298.15 K. Furthermore, the Merchuk equation was used to correlate the binodal data; Othmer-Tobias and Bancraft, Setschenow and extended NRTL equations were used to fit the tie-line data of these systems. Finally, the effects of the type of salt on LLE are discussed. (C) 2008 Elsevier Ltd. All rights reserved.
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