Organic compounds -- part of the class 532-570 series – Organic compounds – Halogen containing
Patent
1994-12-08
1996-01-02
Siegel, Alan
Organic compounds -- part of the class 532-570 series
Organic compounds
Halogen containing
C07K 1908
Patent
active
054810515
ABSTRACT:
A process is disclosed for the monohydrogenolysis of 2,2-dichlorohexafluoropropane to 2-chloro-2-hydrohexafluoropropane. The process involves reacting the 2,2-dichlorohexafluoropropane with hydrogen at an elevated temperature of about 150.degree. C. or less in the presence of a catalyst containing a catalytically effective amount of palladium supported on trivalent chromium oxide in the presence of an acid of the formula HZ (where Z is Cl and/or F) to produce 2-chloro-2-hydrohexafluoropropane with a selectivity of over 70% based upon the 2,2-dichlorohexafluoropropane converted.
REFERENCES:
patent: 2942036 (1960-06-01), Smith et al.
patent: 4319060 (1982-03-01), Cunningham
patent: 4873381 (1989-10-01), Keliner et al.
patent: 5036036 (1991-06-01), Lerou
patent: 5091600 (1992-02-01), Moore et al.
patent: 5171901 (1992-12-01), Gassen et al.
Bitner, J. L. et al, "Thermochemical and Photochemical studies on organic fluorine compounds", Chemical Abstracts, 54:22311C (1962).
Bitner, J. L. et al, U.S. Dept. of Comm. Off. Tech. Serv./Report 136732, pp. 25-27 (1958).
Zubovich, I. A., "Oxidation--Reduction Catalysis by Palladium-Gold and Palladium--Silber Systems on Different Types of Carrier", Russian Journal of Phys. Chem., 56(5), 798-799 (1982).
Sokolskii, D. V. et al, "Liquid-phase Hydrogenation of .beta.-Ionone on a Stationary Ni-Cr.sub.2 O.sub.3 Catalyst in a Flow Apparatus under Hydrogen Pressure", Russian Journal of Phys. Chem., 56(7), 1075-1076 (1982).
E. I. Du Pont de Nemours and Company
Siegel Alan
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