C - Chemistry – Metallurgy – 07 – C
Patent
C - Chemistry, Metallurgy
07
C
C07C 17/10 (2006.01) B01J 23/44 (2006.01) B01J 23/89 (2006.01) B01J 27/128 (2006.01) B01J 27/132 (2006.01) C07C 17/20 (2006.01) C07C 17/21 (2006.01) C07C 17/23 (2006.01) C07C 17/38 (2006.01) C07C 17/383 (2006.01) C07C 17/395 (2006.01)
Patent
CA 2462100
Methods and materials are provided for the production of essentially isomerically pure perhalogenated and partially halogenated compounds. One embodiment of the present invention provides a process for the production of essentially isomerically pure CFC-2l6aa. Other embodiments include processes for the production ofCFC-217ba and HFC-227ea. Particular embodiments of the present invention provide separation techniques for the separation of chlorofluorocarbons from HF, from other chlorofluorocarbons, and the separation of isomers of halogenated compounds. Still other embodiments of the present invention provide catalytic synthetic techniques that demonstrate extended catalyst lifetime. In other embodiments, the present invention provides catalytic techniques for the purification of isomeric mixtures.
L'invention concerne des procédés et des matériaux pour la production de composés entièrement halogénés et partiellement halogénés sensiblement purs sur le plan isomérique. Un mode de réalisation concerne un procédé de production de CFC-2l6aa sensiblement purs sur le plan isomérique. D'autres modes de réalisation concernent des procédés de production de CFC-217ba et de HFC-227ea. Des modes de réalisation particuliers concernent des techniques de séparation permettant de séparer les chlorofluorocarbones des fluorohydrocarbures, les chlorofluorocarbones d'autres chlorofluorocarbones et de séparer des isomères des composés halogénés. D'autres modes de réalisation concernent des techniques synthétiques catalytiques dans lesquelles la durée de vie du catalyseur est prolongée. Selon d'autres modes de réalisation, l'invention concerne des techniques catalytiques pour la purification de mélanges isomériques.
Boggs Janet K.
Brandstadter Stephan M.
Chengping Chien John
Cohn Mitchel
Hedrick Vicki
Goudreau Gage Dubuc
Great Lakes Chemical Corporation
Pcbu Services Inc.
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