Azeotropes of HF and process for the separation of HF via azeotr

Details Azeotropes of HF and process for the separation of HF via azeotr Azeotropes of HF and process for the separation of HF via azeotr

1990-04-09

1992-03-10

Manoharan, Virginia

Compositions

Water-softening or purifying or scale-inhibiting agents

203 1, 203 91, 203 3, 252162, 252DIG9, 570178, C11D 730, C11D 750, B01D 336, B01D 342

Patent

active

050947737

ABSTRACT:
Azeotropes of HF and 2,2-dichloro-1,1,1-trifluoroethane and of HF and 2-chloro-1,1,1,2-tetrafluoroethane. Process for the separation of hydrogen fluoride (HF), 2,2-dichloro-1,1,1-trifluoroethane (FC-123), and/or 2-chloro-1,1,1,2-tetrafluoroethane (FC-124) from mixtures containing them by controlling the molar ratio of HF/FC-123 in the mixture prior to subjecting the mixture to azeotropic distillation.

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Horsley, "Azeotropic Data-III", American Chemical Society, 1973, pp. 11, 14.

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