Process for the isolation of purified ethylene glycol carbonate

Details Process for the isolation of purified ethylene glycol carbonate Process for the isolation of purified ethylene glycol carbonate

1994-07-18

1996-04-23

Tsang, Cecilia

Organic compounds -- part of the class 532-570 series

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

C07D31738

Patent

active

055104991

ABSTRACT:
Ethylene glycol carbonate (EGC) can be isolated in purified form from contaminated material which contains impurities from the group comprising starting materials, by-products and/or catalysts of the preparation process in that the contaminated EGC is subjected to a fractional melt crystallization and the crystals of the purified EGC formed in this case are mechanically separated off from the remaining impurities dissolved in the residual melt.

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Weast, R. C. et al. CRC Handbook of Chemistry and Physics (CRC Pr., Boca Raton), p. F-298 (1982).
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Chemical Abstracts, vol. 66, 1967, p. 2673, 23-Alipahtic Compounds; CA #28342z: "Purification by continuous crystallization . . . ", I. Ciolan et al. Publication month not provided.
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