Process for the purification of medium-chain olefins

Details Process for the purification of medium-chain olefins Process for the purification of medium-chain olefins

C - Chemistry, Metallurgy

07

C

C07C 11/02 (2006.01) B01J 29/90 (2006.01) C07C 2/06 (2006.01) C07C 5/25 (2006.01) C07C 7/00 (2006.01) C07C 7/13 (2006.01) C07C 7/148 (2006.01) C07C 29/16 (2006.01) C07C 31/125 (2006.01) C07C 45/50 (2006.01) C07C 47/02 (2006.01) C08F 10/14 (2006.01) C10G 45/64 (2006.01)

Patent

CA 2135802

Medium-chain olefins containing as impurities 2-alkyl substituted isomers having a close boiling point are purified by (i) passing over a solid acid catalyst under mild conditions to selectively double-bond isomerise said impurities, and (ii) separating said isomerised olefins by distillation.

Des oléfines à chaîne moyenne, contenant, comme impuretés, des isomères à substitution 2-alkyle dont le point d'ébullition est proche de celui des oléfines, sont purifiées par un procédé consistant à (i) faire passer lesdites oléfines sur un catalyseur acide solide dans des conditions modérées permettant d'isomériser sélectivement par liaison double lesdites impuretés, et (ii) séparer les oléfines isomérisées par distillation.

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