Some antisolvents for crystallisation of sodium carbonate

被引：35

作者：

Oosterhof, H ^{[1
]}

Witkamp, GJ ^{[1
]}

van Rosmalen, GM ^{[1
]}

机构：

[1] Delft Univ Technol, Lab Proc Equipment, NL-2628 CA Delft, Netherlands

来源：

FLUID PHASE EQUILIBRIA | 1999年 / 155卷 / 02期

关键词：

solid-fluid equilibria; liquid-liquid equilibria; sodium carbonate; alkane-diols;

D O I：

10.1016/S0378-3812(98)00466-X

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

The phase behaviour of ten aqueous mixtures of an alkanediol saturated with sodium carbonate was studied: between 40 and 90 degrees C the solubility of sodium carbonate was measured in mixtures with different alkane-diol to water ratios. Six systems featured phase separation: polyethylene-glycol 200, polyethylene-glycol 400, tri-ethylene-glycol, 1,2-butanediol, 1,3-butanediol and 1,4-butanediol. Four antisolvents were fully miscible: ethylene glycol, di-ethylene-glycol, glycerol, and 1,2-propanediol. Solubility measurements showed that di-ethylene-glycol is the best antisolvent: sodium carbonate recoveries of 99% are achievable. (C) 1999 Elsevier Science B.V. All rights reserved.

引用

页码：219 / 227

页数：9

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