B - Operations – Transporting – 01 – J
Patent
B - Operations, Transporting
01
J
B01J 8/18 (2006.01) B01J 8/22 (2006.01) B01J 10/00 (2006.01) C07C 51/265 (2006.01) C07C 63/16 (2006.01) C07C 63/26 (2006.01)
Patent
CA 2643523
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 en vue d'effectuer plus efficacement et plus économiquement l'oxydation en phase liquide d'un composé oxydable. Une telle oxydation en phase liquide est effectuée dans un réacteur à colonne à barbotage permettant d'avoir une réaction hautement efficace à des températures relativement basses. Lorsque le composé oxydé est le para-xylène et lorsque le produit provenant de la réaction d'oxydation est l'acide téréphtalique brut (CTA), un tel produit CTA peut être purifié et séparé par des techniques plus économiques que celles qui seraient employées si le CTA était formé par un procédé d'oxydation conventionnel à haute température.
Wonders Alan George
Woodruff Thomas Earl
Eastman Chemical Company
Gowling Lafleur Henderson Llp
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