Azeotropic or azeotrope-like compositions of ammonia and hydrofl

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

1992-09-25

1995-02-07

Skaling, Linda

Compositions

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

62114, 264 53, 264DIG5, 252 68, 252153, 252172, 252305, 252DIG9, C09K 504

Patent

active

053873572

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:
patent: 1631573 (1927-06-01), Barsky
patent: 3732150 (1973-05-01), Bailey
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.
Chemical Abstract No. 118(8):62426g abstract of Moshfeghian et al. Fluid Phase Equlib. vol. 80 pp. 33-40 1992.
Moshfeghian, et al., Fluid Phase Equilibria vol. 80 pp. 33-44, 1992.
ARTI Refrigerant Database, prepared by J. Calm for the Air-Conditioning & Refrigeration Technology Institute, Apr. 1992.
Kruse, H. DKV-Statusber. Dtsch. Kaelbe-Klimatech. Ver. vol. 11, Aug. 1992.
International Search Report of International Appln. No. PCT/US93/08608, international filing date Sep. 17, 1993.

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