Organic compounds -- part of the class 532-570 series – Organic compounds – Halogen containing
Patent
1984-11-08
1989-10-24
Evans, J. E.
Organic compounds -- part of the class 532-570 series
Organic compounds
Halogen containing
502210, 570168, C07C 1720, C07C 1709
Patent
active
048764060
ABSTRACT:
This invention relates to improved catalysts for gaseous phase fluoridation of aliphatic chlorinated and chlorofluorinated hydrocarbons by hydrofluoric acid. The catalysts comprise chromium salts or oxides complexed with aluminum phosphate and are characterized by a total specific surface area greater than about 200 m.sup.2 /g, but less than about 1000 m.sup.2 /g a surface area of pores of 40 to 50 .ANG. in radius above about 5 m.sup.2 /g, but less than about 150 m.sup.2 /g, a surface area of pores greater than or equal to 250 .ANG. in radius above about 2 m.sup.2 /g. but less than about 60 m.sup.2 /g. This invention also relates to gaseous phase fluoridation processes for chlorinated or chlorofluorinated derivatives utilizing these catalysts in fluidized bed reactors.
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Evans J. E.
PCUK-Produits Chimiques Uginc Kuhlmann
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