Patent ID: 6030591
Filing Date: 2000-02-29
Classification: C07C

Abstract:
A process for recovery of fluorocompound gas selected from the group consisting of perfluorocarbons, fluorinated hydrocarbons, chlorofluorocarbons, sulfur hexafluoride, nitrogen trifluoride, and mixtures thereof, from an effluent gas stream comprising said fluorocompound gas and other gas components,said process comprising the steps of:first removing at least one of said other gas components from the effluent stream to yield a first effluent gas mixture containing said fluorocompound gas; andremoving said fluorocompound gas from the first effluent gas mixture and recovering same as a concentrated fluorocompound gas,wherein said first removing said at least one gas component, comprises a step selected from the group consisting of:(i) oxidizing said at least one gas component for removal of same from the effluent gas stream;(ii) contacting the effluent gas stream with a dry material which is effective for removal of said at least one gas component from the effluent gas stream; and(iii) combinations of steps (i) and (ii).