Azeotropic and azeotrope-like compositions of 1,1,2,2-tetrafluor

Details Azeotropic and azeotrope-like compositions of 1,1,2,2-tetrafluor Azeotropic and azeotrope-like compositions of 1,1,2,2-tetrafluor

1993-08-09

1998-03-10

McGinty, Douglas J.

Compositions

Vaporization, or expansion, refrigeration or heat or energy...

510177, 510408, 252305, 252364, 62114, 623241, C09K 504, C09K 330, C11D 730

Patent

active

057257914

ABSTRACT:
The azeotropic compositions of 1,1,2,2-tetrafluoroethane and 1,1-difluoroethane and the azeotropic and azeotropic-like composition of 1,1,2,2-tetrafluoroethane and one of, 1-chloro-1,1-difluoroethane, perfluorocyclobutane, n-butane, isobutane and 1,1,1,2,3,3,3-heptafluoropropane, and their use as refrigerants, aerosol propellants and blowing agents for polymer foams, are disclosed. The azeotropic and azeotrope-like compositions of 1,1,1,2-tetrafluoroethane and one of perfluorocyclobutane and 1,1,1,2,3,3,3-heptafluoropropane are also useful as fire extinguishants.

REFERENCES:
patent: 3732150 (1973-05-01), Bailey
patent: 3819493 (1974-06-01), Fozzard
patent: 5348730 (1994-09-01), Greenleaf et al.
Maezawa et al., ASME/JSME Thermal Engineering Proceedings, vol. 3, pp. 443-449, Mar. 1991.
Tamatsu et al., J. Chem. Eng. Data, vol. 37, pp. 512-515, 1992, no month available.

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