Process for the removal of water from a solution by azeotropic d

Details Process for the removal of water from a solution by azeotropic d Process for the removal of water from a solution by azeotropic d

1994-03-22

1996-05-07

Manoharan, Virginia

Distillation: processes, separatory

Distilling to separate or remove only water

From organic compound

203 67, 252DIG9, 570178, 570262, B01D 336

Patent

active

055142516

ABSTRACT:
The invention relates to binary azeotropic compositions between water and 1,1-dichloro-1-fluoroethane, 1-chloro-1,1-difluoroethane, 1,1,1-trifluoroethane, 1,1,1,2-tetrafluoroethane, 1,1-difluoroethane or trifluoroethylene, to a process for the removal of water from solutions by azeotropic distillation using these compositions, as well as to a process for the production of a hydrofluoroalkane in which water is removed from the mixture of reaction products by azeotropic distillation using these compositions.

REFERENCES:
patent: 745743 (1852-02-01), Schulze
patent: 3275549 (1966-09-01), Crabb et al.
patent: 4209470 (1980-06-01), Lorquet
patent: 5182040 (1993-01-01), Bartlett et al.
"Encyclopedia of Chemical Technology", 1978, 3rd Edition, vol. 3, pp. 361-373.
CA 112:142181.

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