Materials treatment

Details Materials treatment Materials treatment

B - Operations, Transporting

01

D

B01D 11/04 (2006.01) A62D 3/30 (2007.01) C02F 1/26 (2006.01)

Patent

CA 2273886

A material contaminated with a solvent is treated with a hydrofluorocarbon to remove the contaminant. A preferred hydrofluorocarbon is tetrafluoroethane. Apparatus for carrying out the process is also described.

Une substance contaminée par un solvant est traitée avec de l'hydrocarbure fluoré afin d'en extraire le contaminant. L'hydrocarbure fluoré préférentiel est le tétrafluoréthane. La présente invention décrit également l'appareil utilisé dans cette opération.

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