Process for the regeneration of a catalyst based on trivalent chromium compounds

摘要

Process for the regeneration of a fluorination catalyst based on Cr(III) compounds optionally supported, which comprise a) treatment at 350 DEG -40 DEG C. with an air/inert gas mixture and b) treatment at 300 DEG -380 DEG C. with a mixture of an inert gas containing from 0.5 to 5% by volume of an aliphatic hydrocarbon C1-C8.