Regeneration of a fluorination catalyst

Details Regeneration of a fluorination catalyst Regeneration of a fluorination catalyst

B - Operations, Transporting

01

J

B01J 38/44 (2006.01) B01J 23/90 (2006.01) B01J 23/92 (2006.01) B01J 38/46 (2006.01) C07C 17/20 (2006.01) C07C 17/23 (2006.01)

Patent

CA 2051292

A method for regenerating a used fluorination catalyst such as a chromium-containing compound comprises contacting the used catalyst at a temperature of 300°C to 500°C with a mixture of an oxidising agent, especially air, and hydrogen fluoride and optionally an inert diluent such as nitrogen, said mixture containing up to 30% of oxidising agent on a molar basis. The method obviates chromium loss during regeneration/refluorination of spent catalyst and provides heated hydrogen fluoride for use directly in fluorination reactions.

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