Hydroformylation process

C - Chemistry – Metallurgy – 07 – C

Patent

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C07C 45/50 (2006.01) C07C 29/16 (2006.01)

Patent

CA 2612596

A hydroformylation process comprising reacting a feedstock composition comprising a compound having at least one olefinic carbon-to-carbon bond with hydrogen and carbon monoxide in the presence of an organophosphine modified cobalt hydrof ormylation catalyst, wherein the hydroformylation process is carried out in at least two reaction zones, wherein the at least two reaction zones comprise an earlier reaction zone and a later reaction zone, wherein the temperature of the later reaction zone is at a temperature which is at least 2 0C greater than the temperature in the earlier reaction zone, and the temperature of the later reaction zone is in the range of from 140 0C to 220 0C, and the temperature of the earlier reaction zone is at least 130 0C.

La présente invention concerne un processus d'hydroformylation qui consiste à faire réagir une composition comprenant un composé possédant au moins une liaison carbone-carbone oléfinique avec hydrogène et monoxyde de carbone en présence d'un catalyseur d'hydroformylation au cobalt modifié organophosphine, ce processus d'hydroformylation étant effectué dans au moins deux zones de réaction, ces deux zones de réaction comprenant une zone de réaction préalable et une zone de réaction postérieure, la température de la zone de réaction postérieure étant d'au moins 2 °C supérieure à la température régnant dans la zone de réaction préalable et, la température de la zone de réaction postérieure étant comprise entre 140 °C et 120 °C, la température de la zone de réaction préalable étant au moins de 230 °C.

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