Optimized liquid-phase oxidation

Details Optimized liquid-phase oxidation Optimized liquid-phase oxidation

C - Chemistry, Metallurgy

07

B

C07B 33/00 (2006.01) C07C 51/235 (2006.01)

Patent

CA 2577055

Disclosed is an optimized process for more efficiently and economically carrying out the liquid-phase oxidation of an oxidizable compound. Such liquid- phase oxidation is carried out in a bubble column reactor that provides for a highly efficient reaction at relatively low temperatures. When the oxidized compound is para-xylene and the product from the oxidation reaction is crude terephthali c acid (CTA), such CTA product can be purified and separated by more economic altechniques than could be employed if the CTA were formed by a conventional high- temperature oxidation process.

Procédé optimisé qui permet d'effectuer de manière plus efficace et plus économique l'oxydation en phase liquide d'un composé oxydable. Cette oxydation en phase liquide est effectuée dans un réacteur colonne à bulles qui permet une réaction hautement efficace à des températures relativement basses. Lorsque le composé oxydé est du paraxylène et que le produit de la réaction d'oxydation est de l'acide téréphtalique brut (CTA), ce produit CTA peut être purifié et séparé par des techniques plus économiques que celles qui devraient être employées si le CTA avait été obtenu selon un procédé d'oxydation classique à haute température.

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