Optimized liquid-phase oxidation

Details Optimized liquid-phase oxidation Optimized liquid-phase oxidation

C - Chemistry, Metallurgy

07

C

C07C 51/235 (2006.01) C07C 63/26 (2006.01)

Patent

CA 2578362

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 terephthalic acid (CTA), such CTA product can be purified and separated by more economical techniques than could be employed if the CTA were formed by a conventional high-temperature oxidation process.

L'invention concerne un procédé et un appareil optimisés permettant de réaliser de manière plus efficace et économique l'oxydation en phase liquide d'un composé oxydable. Ladite oxydation en phase liquide est réalisée dans un réacteur à colonne à bulles qui assure 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), ledit produit CTA peut être purifié et séparé par des techniques plus économiques que celles qui pourraient être utilisées si le CTA était formé par un procédé d'oxydation haute température classique.

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