Process for exhaustively decontaminating...

Details Process for exhaustively decontaminating... Process for exhaustively decontaminating...

C - Chemistry, Metallurgy

08

G

204/91.23

C08G 65/30 (2006.01) C07C 41/44 (2006.01) C07C 41/58 (2006.01) C07C 43/12 (2006.01) C08G 65/00 (2006.01)

Patent

CA 1288724

ABSTRACT OF THE DISCLOSURE A process for fully removing from the perfluoropolyethers having a minimum vapour tension, the organic polluting material containing group -OH and/or bonds ?C-H, which comprises treating the perfluoropolyether with oxygen, or chlorine or fluorine, at a high temperature and in the presence of ultraviolet radiations, in order to convert the impurities to volatile degradation products readily removable by degassing.

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