Production of bis(fluoromethyl)ether and/or difluoromethane from formaldehyde and hydrogen fluoride
Номер патента: CA2123100A1
Опубликовано: 27-05-1993
Автор(ы): John S. Martin, Rachel A. Spooncer, Thomas A. Ryan
Принадлежит: Imperial Chemical Industries Plc, Ineos Fluor Holdings Limited, John S. Martin, Rachel A. Spooncer, Thomas A. Ryan
Опубликовано: 27-05-1993
Автор(ы): John S. Martin, Rachel A. Spooncer, Thomas A. Ryan
Принадлежит: Imperial Chemical Industries Plc, Ineos Fluor Holdings Limited, John S. Martin, Rachel A. Spooncer, Thomas A. Ryan
Реферат: A process for the production of bis(fluoromethyl)ether by contacting formaldehyde with hydrogen fluoride in a reaction/ distillation vessel. The reaction/distillation vessel is preferably a reaction/distillation column through which formaldehyde and hydrogen fluoride preferably flow in counter current. The bis(fluoromethyl)ether may be converted to difluoromethane, prefer-ably by heating the bis(fluoromethyl)ether to elevated temperature in the presence of a metal, metal oxide, metal fluoride or metal oxyfluoride catalyst.
Process for the production of bis(fluoromethyl)ether and difluoromethane
Номер патента: US5506364A. Автор: John S. Martin,Thomas A. Ryan,Rachel A. Spooncer. Владелец: Imperial Chemical Industries Ltd. Дата публикации: 1996-04-09.