Some antisolvents for crystallisation of sodium carbonate

H. Oosterhof; G. J. Witkamp; G. M. Van Rosmalen

doi:10.1016/S0378-3812(98)00466-X

Some antisolvents for crystallisation of sodium carbonate

H. Oosterhof^*, G. J. Witkamp, G. M. Van Rosmalen

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

36 Scopus citations

Abstract

The phase behaviour of ten aqueous mixtures of an alkanediol saturated with sodium carbonate was studied: between 40 and 90°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.

Original language	English (US)
Pages (from-to)	219-227
Number of pages	9
Journal	Fluid Phase Equilibria
Volume	155
Issue number	2
DOIs	https://doi.org/10.1016/S0378-3812(98)00466-X
State	Published - Feb 25 1999
Externally published	Yes

Keywords

Alkane- diols
Liquid-liquid equilibria
Sodium carbonate
Solid-fluid equilibria

ASJC Scopus subject areas

General Chemical Engineering
General Physics and Astronomy
Physical and Theoretical Chemistry

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10.1016/S0378-3812(98)00466-X

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abstract = "The phase behaviour of ten aqueous mixtures of an alkanediol saturated with sodium carbonate was studied: between 40 and 90°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.",

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AU - Oosterhof, H.

AU - Witkamp, G. J.

AU - Van Rosmalen, G. M.

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Y1 - 1999/2/25

N2 - The phase behaviour of ten aqueous mixtures of an alkanediol saturated with sodium carbonate was studied: between 40 and 90°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.

AB - The phase behaviour of ten aqueous mixtures of an alkanediol saturated with sodium carbonate was studied: between 40 and 90°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.

KW - Alkane- diols

KW - Liquid-liquid equilibria

KW - Sodium carbonate

KW - Solid-fluid equilibria

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Some antisolvents for crystallisation of sodium carbonate

Abstract

Keywords

ASJC Scopus subject areas

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