Process for producing carbonyl difluoride

Details Process for producing carbonyl difluoride Process for producing carbonyl difluoride

2002-11-07

2008-08-26

Hendrickson, Stuart (Department: 1793)

Organic compounds -- part of the class 532-570 series

Organic compounds

Carboxylic halides

C423S416000

Reexamination Certificate

active

07417167

ABSTRACT:
The invention relates to a process for producing carbonyl difluoride. This process includes the steps of (a) reacting carbon monoxide with a first metal fluoride in a reactor, thereby obtaining carbonyl difluoride and a second metal fluoride having in the molecule a fluorine atom number less than that of the first metal fluoride; and (b) reacting the second metal fluoride with fluorine in the reactor, thereby obtaining the first metal fluoride. The steps (a) and (b) are alternately repeated in the reactor, thereby repeatedly producing carbonyl difluoride.

REFERENCES:
patent: 3929973 (1975-12-01), Dell'Amico et al.
patent: 4260561 (1981-04-01), Franz
patent: A-54158396 (1979-12-01), None
Farlow et al., Carbonyl Fluoride, Chapter VIIA,Inorganic Syntheses 6, p. 155 (1960).
Agopovich et al., “Ozonolysis of Trifluoroethylene, 1,1-Difluoroethylene, and Perfluoroethylene. Epoxide and Ozonide Formation”,J. Amer. Chem. Soc., 102, pp. 7572-7574 (1980).
Simons et al., “The Preparation and Properties of Certain Trifluoromethyl Compounds”,J. Amer. Chem. Soc., 62, pp. 3477-3480 (1940).

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