Adiabatic Hydrofluorination of hydrochlorofluorocarbons

Details Adiabatic Hydrofluorination of hydrochlorofluorocarbons Adiabatic Hydrofluorination of hydrochlorofluorocarbons

1995-03-24

1997-02-04

Siegel, Alan

Organic compounds -- part of the class 532-570 series

Organic compounds

Halogen containing

570168, C07C 1708

Patent

active

056000383

ABSTRACT:
Process for adiabatically hydrofluorinating hydrochlorocarbons and hydrochlorofluorocarbons in the gaseous phase in the presence of a catalyst that is active at the initial reaction temperature and remains highly selective at the maximum reaction temperature, e.g., a Cr catalyst. The molar ratio of HF to starting compound is at least about 2.5:1. The initial reaction temperature is selected such that the HF in the feed is partially associated but not completely (HF).sub.6. The catalyst may be unsupported or supported.

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