PROCESS FOR THE PREPARATION OF OCTAFLUOROCYCLOHEXADIENE

摘要

PURPOSE: A producing method of octafluorocyclohexadiene using hexafluorobenzene as a raw material is provided to improve the conversion rate and the selectivity, and to reduce the generation of by-products. CONSTITUTION: A producing method of octafluorocyclohexadiene using hexafluorobenzene(6) as a raw material comprises the following steps: mixing 1~10wt% of cobalt difluoride, and 90~99wt% of metal fluoride selected from the group consisting of calcium difluoride, magnesium difluoride, aluminum trifluoride, sodium fluoride and calcium fluoride; abtaining an active fluorination agent to contacting the mixture with fluorine gas(1) at 200~400 deg C; and reacting the active fluorination agent with the hexafluorobenzen under the atmosphere containing inert gas(2) at 60~200deg C.