Refrigerant mixture containing hydrogen bromide

Details Refrigerant mixture containing hydrogen bromide Refrigerant mixture containing hydrogen bromide

1998-11-11

1999-11-23

Skane, Christine

Compositions

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

62114, C09K 504

Patent

active

059894482

ABSTRACT:
An azeotropic refrigerant mixture having low GWP and low ODP properties and saving on energy in amounts of from 8% to 17% and consisting of a blend of hydrogen bromide and a fluorohydrocarbon selected from the group consisting of R-123 dichlorotrifluoroethane (CHCl.sub.2 CF.sub.3); R-124 chlorotetrafluoroethane (CHFCICF.sub.3); R-134a tetrafluoroethane (CF.sub.3 CH.sub.2 F); R-142B chlorodifluoroethane (CH.sub.3 CClF.sub.2); R-143a trifluoroethane (CH.sub.3 CF.sub.3); R-152a difluoroethane (CH.sub.3 CHF.sub.2); and R-22 chlorodifluoromethane (CHClF.sub.2), with the HBr component being present in an amount ranging up to less than about 30% by volume, balance fluorohydrocarbon. Preferred blends consist of hydrogen bromide in an amount ranging from between about 8% and 17% by volume.

REFERENCES:
patent: 4495776 (1985-01-01), Nikolsky et al.
patent: 4510064 (1985-04-01), Ermak
patent: 4810403 (1989-03-01), Bivens et al.
patent: 5094773 (1992-03-01), Manzer et al.
patent: 5286422 (1994-02-01), Kato et al.
Chemical Abstracts 91:23934, "Solar energy storage as hydrogen and bromine from hydrogen bromide", Fletcher, No Month Availabele, 1979.

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