Organic compounds -- part of the class 532-570 series – Organic compounds – Halogen containing
Patent
1991-04-15
1994-04-05
Cintins, Ivars
Organic compounds -- part of the class 532-570 series
Organic compounds
Halogen containing
210679, 210690, B01D 1500
Patent
active
053007140
ABSTRACT:
A method of removing olefinic impurity, such as perfluoroisobutylene, from fluoroperhalocarbon liquid, such as perfluorinated liquid, comprising the step of contacting the fluoroperhalocarbon liquid with a body of particles comprising particles selected from the group consisting of alumina, alkali metal oxide, alkali metal hydroxide, alkaline earth oxide, alkaline earth hydroxide, silicon oxide, tin oxide, zinc oxide, alkaline earth basic carbonate, and alkaline earth basic phosphate, transition metal oxide particles and mixtures thereof.
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Behr Frederick E.
Fletcher Robert B.
Hagen Donald F.
Pothapragada Venkateswarlu
Cintins Ivars
Griswold Gary L.
Kirn Walter N.
Maki Eloise J.
Minnesota Mining and Manufacturing Company
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