Purification of isoflurane by extractive distillation

Details Purification of isoflurane by extractive distillation Purification of isoflurane by extractive distillation

1992-05-01

1993-07-27

Manoharan, Virginia

Distillation: processes, separatory

Adding material to distilland except water or steam per se

Organic compound

203 60, 203 62, 203 71, 568682, 568684, B01D 340

Patent

active

052307786

ABSTRACT:
A method for the separation of Isoflurane from its admixture with other compounds produced in the chlorination of 2-difluoromethoxy-1,1,1-trifluoroethane including subjecting the mixture to distillation, distilling off the Isoflurane and effecting said distillation as an extractive distillation employing an extractive solvent which retards the vapor pressure of Isoflurane.

REFERENCES:
patent: 3113079 (1963-12-01), Bergeron et al.
patent: 3658658 (1972-04-01), Bursack et al.
patent: 3720587 (1973-03-01), Croix
patent: 5106460 (1992-04-01), Berg

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