Production of bis(fluoromethyl) ether and difluoromethane

Details Production of bis(fluoromethyl) ether and difluoromethane Production of bis(fluoromethyl) ether and difluoromethane

C - Chemistry, Metallurgy

07

C

C07C 43/12 (2006.01) C07C 17/00 (2006.01) C07C 17/361 (2006.01) C07C 19/08 (2006.01) C07C 41/01 (2006.01)

Patent

CA 2134076

2134076 9322265 PCTABS00027 A process for the production of bis(fluoromethyl)ether which comprises contacting formaldehyde with hydrogen fluoride in the presence of an essentially water-immiscible solvent for the ether. The bis(fluoromethyl)ether may be converted to difluoromethane, optionally after separation from the solvent, preferably by heating the bis(fluoromethyl)ether to elevated temperature in the presence of a metal, metal oxide, metal fluoride or metal oxyfluoride catalyst.

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