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a technology of fluorocarbons and production methods, applied in the field of fluorocarbon production, can solve the problem that known methods do not readily translate into predictable applications for other compounds
Inactive Publication Date: 2005-02-17
GREAT LAKES CHEM CORP
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The prior art demonstrates that known methods do not readily translate into predictable applications for other compounds
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Abstract
Systems and methods for producing fluorocarbons are provided that include contacting a saturated halogenated fluorocarbon with hydrogen and catalyst to produce a saturated hydrofluorocarbon and an unsaturated fluorocarbon. Aspects of the present invention describe systems and methods for contacting saturated halogenated fluorocarbons such as CF3CClFCF3 and / or CF3CCl2CF3 with hydrogen and catalyst. Systems and methods of the present invention also describe contacting saturated halogenated fluorocarbons with catalysts having one or more of K, Zr, Na, Ni, Cu, Ni, Zn, Fe, Mn, Co, Ti, and Pd. Aspects of the present invention also describe contacting saturated halogenated fluorocarbons with hydrogen under pressure. Saturated hydroflourocarbons and unsaturated fluorocarbons produced in accordance with the systems and methods of the present invention can include one or more of CF3CFHCF3, CF3CH2CF3, CF3CHClCF3, CF3CF═CF2, CF3CH═CF2, and CF3CCl═CF2.
Description
TECHNICAL FIELD [0001] The present invention relates to the production of fluorocarbons. Aspects of the present invention relate to the production of saturated and unsaturated fluorocarbons. BACKGROUND OF THE INVENTION [0002] Hydrofluorocarbons and fluoromonomers such as 1,1,1,2,3,3,3-heptafluoropropane (CF3CHFCF3, HFC-227ea) and hexafluoropropene (CF3CF═CF2, FC-1216, HFP) are commercially desired. [0003] HFP is widely employed as a monomer for the production of fluorine-containing polymers, for example, the thermoplastic FEP (“fluorinated-ethylene-propylene”) resins, formed via the copolymerization of tetrafluoroethylene and hexafluoropropene (see for example, Fluorine Chemistry: A Comprehensive Treatment, M. Howe-Grant, ed., Wiley & Sons, New York, N.Y., 1995, page 404). [0004] HFC-227ea has found use as a blowing agent (U.S. Pat. No. 5,314,926; U.S. Pat. No. 5,278,196), refrigerant (Chen, J., Sci. Tech. Froid (1994), (2 CFCS, the Day After), 133-145), and propellant for use in me...
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Patent Type & Authority Applications(United States)
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