Hydrofluorocarbon compositions

Details Hydrofluorocarbon compositions Hydrofluorocarbon compositions

1995-05-04

1997-09-30

McGinty, Douglas J.

Compositions

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

510408, 510177, 62114, 623241, C09K 504, C09K 330, C11O 750, C08J 914

Patent

active

056722931

ABSTRACT:
Refrigerant compositions include mixtures of difluoromethane and isobutane, butane, propylene or cyclopropane; pentafluoroethane and propylene or cyclopropane; 1,1,2,2-tetrafluoroethane and propane; 1,1,1,2-tetrafluoroethane and cyclopropane; 1,1,1-trifluoroethane and DME or propylene; 1,1-difluoroethane and propane, isobutane, butane or cyclopropane; fluoroethane and propane or cyclopropane; 1,1,1,2,2,3,3-heptafluoropropane and butane, cyclopropane, DME, isobutane or propane; or 1,1,1,2,3,3,3-heptafluoropropane and butane, cyclopropane, isobutane or propane.

REFERENCES:
patent: 3159535 (1964-12-01), Sesso et al.
patent: 4622825 (1986-11-01), Larve et al.
patent: 4663361 (1987-05-01), Park
patent: 5417871 (1995-05-01), Minor et al.
patent: 5458798 (1995-10-01), Lunger et al.
patent: 5492541 (1996-02-01), Murphy et al.
patent: 5601753 (1997-02-01), Omure et al.
Research Disclosure Mar. 1977 Disclosure No. 15505 "Azeotropes Comprising Hydrogen-Containing Fluorocarbons and Hydrocarbons", Disclosed by E. I. Du Pont de Nemours.
Moshfeghian, Mahmood, et al., "Prediction of refrigerant thermodynamic properties by equations of state", Fluid Phase Equilib., 80, 33-44. (Month not known).
Kopko, Beyond CFCs: Extending the Search for New Refrigerants, 1989 ASHRAE CFC Technology Conference, 79-85, Sep. 1989.

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