Optimized liquid-phase oxidation

B - Operations – Transporting – 01 – J

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Details

B01J 19/24 (2006.01) B01J 10/00 (2006.01) C07C 51/265 (2006.01) C07C 63/26 (2006.01)

Patent

CA 2576795

Disclosed is an optimized process and apparatus 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 d'exécuter de manière efficace et économique l'oxydation en phase liquide d'un composé pouvant être oxydé. Cette oxydation en phase liquide s'effectue dans un réacteur à colonne à bulles afin de produire une réaction très efficace à des températures relativement basses. Lorsque le composé oxydé est un paraxylène et que le produit obtenu par la réaction d'oxydation est un acide téréphtalique brut (CTA), ledit produit CTA peut être purifié et séparé au moyen de techniques économiques plus nombreuses que celles utilisées lorsque le CTA est formé au moyen d'un procédé d'oxydation à température élevée classique.

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