Azeotrope(like) compositions with fluoromethyl trifluoromethyl e

Details Azeotrope(like) compositions with fluoromethyl trifluoromethyl e Azeotrope(like) compositions with fluoromethyl trifluoromethyl e

1995-06-07

1997-03-04

McGinty, Douglas J.

Compositions

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

510411, 62114, 623241, C09K 504, C11D 750, C11D 726, C11D 728

Patent

active

056076169

ABSTRACT:
Refrigerant compositions include mixtures of hexafluorodimethyl ether and cyclopropane, dimethylether or propylene; bis(difluoromethyl) ether and 2,2,3,4,4-pentafluorooxetane; fluoromethyl trifluoromethyl ether and 2,2,4,4,5,5-hexafluoro-1,3-dioxolane, 1-trifluoromethoxy-1,2,2,2-tetrafluoroethane, dimethylether or tris(trifluoromethyl)amine; trifluoromethyl methyl ether and perfluorooxetane, 2,2,4,4,5,5-hexafluoro-1,3-dioxolane, perfluoromethyl ethyl ether, perfluorodimethoxymethane, 1-trifluoromethoxy-1,2,2,2-tetrafluoroethane, dimethylether or tris(trifluoromethyl)amine; perfluoromethyl ethyl ether and dimethylether, propylene or 1-trifluoromethoxy-1,2,2,2-tetrafluoroethane; perfluorodimethoxymethane and dimethylether or isobutane; 1-trifluoromethoxy-1,1,2,2-tetrafluoroethane and tris(trifluoromethyl)amine or dimethylether; difluoromethoxy pentafluoroethane and dimethylether, isobutane or tris(trifluoromethyl)amine; 1-trifluoromethoxy-1,2,2,2-tetrafluoroethane and dimethylether or isobutane; 1-difluoromethoxy-1,1,2,2-tetrafluoroethane and N(CHF.sub.2).sub.2 (CF.sub.3); or 1,1,1,2,2,3,3-heptafluoro-3-(1,2,2,2-tetrafluoroethoxy)propane and 1,1,2,2,3-pentafluoropropane or 1,1,1,2,3-pentafluoropropane.

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Devotta et al., Assessment of HFCs, Fluorinated Ethers and Amine as Alternatives to CFC12, Int. J. Refrig., 16, No. 2, 84-90, 1993.
Kopko, Beyond CFCs: Extending the Search for New Refrigerants*, ASHRAE CFC Technology Conference, Gaithersburg, MD, 79-85, Sep. 27-28, 1989.
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