Organic compounds -- part of the class 532-570 series – Organic compounds – Carboxylic halides
Reexamination Certificate
2006-02-21
2006-02-21
WItherspoon, Sikarl A. (Department: 1621)
Organic compounds -- part of the class 532-570 series
Organic compounds
Carboxylic halides
C562S850000, C562S853000
Reexamination Certificate
active
07002040
ABSTRACT:
This invention relates generally to a improvement in a process for the purification of fluoroxy compounds, such as bis(fluoroxy)difluoromethane and fluoroxytrifluoromethane produced by the fluorination of carbon oxides. The improvement in effecting purification of the fluoroxy compounds is effected by initially selectively removing the fluorine by contacting with a crystalline zeolite and then removing the carbon oxide by selective adsorption.
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Campion Beth Ann
Fowler Donald Elson
Henderson Philip Bruce
Syvret Robert George
Air Products and Chemicals Inc.
Chase Geoffrey L.
WItherspoon Sikarl A.
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