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US 4,499,024 AGranted
Continuous process for preparing bisfluoroxydifluoromethane
AssigneeOccidental Chemical Corporation
InventorMichael J. Fifolt
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Abstract
Bisfluoroxydifluoromethane is prepared by the continuous reaction of carbon dioxide and fluorine in the presence of a cesium fluoride catalyst. The reaction is preferably conducted at a temperature in the range of from about -50.degree. C. to about 200.degree. C. and a mole ratio of CO.sub.2 :F.sub.2 in the range of from about 0.2 to about 0.95.
Claims1
A continuous process for preparing bisfluoroxydifluoromethane comprising the steps of:
- (a) introducing a mixed gas stream containing carbon dioxide and fluorine into a continuous reactor at a temperature of from about 20.degree. C. to about 30.degree. C. and in a mole ratio of carbon dioxide to fluorine of about 0.40 to about 0.70, said reactor containing a catalytic amount of cesium fluoride,
- (b) maintaining the temperature of the reactor in the range of from about 20.degree. C. to about 30.degree. C.,
- (c) collecting the exit gases from the reactor, and
- (d) recovering bisfluoroxydifluoromethane from the exit gases.
1 more element
Dependencies are inferred from the claim text.