Azeotropic or azeotrope-like compositions of ammonia and tetrafl

Details Azeotropic or azeotrope-like compositions of ammonia and tetrafl Azeotropic or azeotrope-like compositions of ammonia and tetrafl

1994-10-28

1997-12-23

McGinty, Douglas J.

Compositions

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

252305, 62114, 623241, 264 53, 264DIG5, 510177, 510409, C09K 504, C09K 330

Patent

active

057003882

ABSTRACT:
Constant boiling azeotropic or azeotrope-like compositions of ammonia and 1,1,1,2-tetrafluoroethane, 1,1,2,2-tetrafluoroethane, difluoromethane, pentafluoroethane or 1,1,1,2,3,3,3-heptafluoropropane are disclosed that are useful as refrigerants, aerosol propellants, heat transfer media, gaseous dielectrics, fire extinguishing agents, expansion agents for polyolefins and polyurethanes and as power cycle working fluids.

REFERENCES:
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patent: 3874965 (1975-04-01), Greenwald et al.
patent: 4216660 (1980-08-01), Rodgers
patent: 4724679 (1988-02-01), Radermacher
patent: 5124395 (1992-06-01), Abramowski et al.
patent: 5387357 (1995-02-01), Shiflett et al.
patent: 5433880 (1995-07-01), Minor et al.
International Search Report of International Appln. No. PCT/US93/08608, international filing date is Sep. 17, 1993.
Moshfeghian et al., Fluid Phase Equilibria, vol. 80, pp. 33-44, 1992, no month available.
ARTI Refrigerant Database prepared by J. Calm for the Air-Conditioning and Refrigeration Technology Institute, Apr. 30, 1992.
Kruse, H., DKV-Statusber Dtsch Kaelte-Klimatcsh Ver, vol. 11 Aug. 1992.

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