The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Aug. 08, 1989

Filed:

May. 27, 1988
Applicant:
Inventor:

John G Hundley, St. Charles, IL (US);

Assignee:

Amoco Corporation, Chicago, IL (US);

Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07C / ;
U.S. Cl.
CPC ...
562414 ; 562413 ; 562416 ; 562417 ;
Abstract

A continuous process for producing a polycarboxylic acid product is disclosed. The process comprises combining a methyl substituted aromatic hydrocarbon, an oxidation catalyst, and an oxygen-containing gaseous stream in a reaction zone to produce a reaction mixture. The oxygen-containing gaseous stream includes non-condensible gases. The reaction mixture in the reaction zone is subjected to a predetermined temperature and pressure for a predetermined residence time to produce an admixture of reactants and reaction products. The reaction products include a vapor phase and a product-containing liquid phase. Heat is removed from the product-containing liquid phase by withdrawing a portion of such liquid stream from the reaction zone and passing such reaction zone-removed portion to a heat-removal/separation zone.


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Hundley, John. (1989). Process for production of aromatic polycarboxylic acids (U.S. Patent No. 4855492). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4855492

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