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:
Feb. 27, 2018

Filed:

Jun. 16, 2016
Applicant:

Saudi Arabian Oil Company, Dhahran, SA;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01J 8/00 (2006.01); B01J 8/08 (2006.01); B01J 19/00 (2006.01); B01J 19/24 (2006.01); C07C 51/00 (2006.01); C07C 51/285 (2006.01); C07C 51/295 (2006.01); C07C 63/04 (2006.01); C07C 63/06 (2006.01); C07C 63/14 (2006.01); C07C 63/15 (2006.01); C07C 63/16 (2006.01); C07C 63/24 (2006.01); C07C 63/26 (2006.01);
U.S. Cl.
CPC ...
C07C 51/295 (2013.01); B01J 8/006 (2013.01); B01J 8/085 (2013.01); B01J 19/0046 (2013.01); C07C 51/285 (2013.01); B01J 2219/0059 (2013.01); B01J 2219/0072 (2013.01); B01J 2219/00599 (2013.01); B01J 2219/00759 (2013.01);
Abstract

Systems and methods for liquid-phase oxidation of an aromatic feedstock containing at least one oxidizable aromatic compound may incorporate an oxidation reactor, a separation apparatus in fluidic communication with the oxidation reactor, a solids treatment unit, and a product recovery unit in fluidic communication with the separation apparatus. The oxidation reactor may conduct liquid-phase oxidation of the oxidizable aromatic compound in the aromatic feedstock in the presence of a manganate salt to form a slurry containing liquid product and solid manganese dioxide. The separation apparatus may accept the slurry from the oxidation reactor and separate the liquid component from the solid component. The solids treatment unit accepts the solid component from the separation apparatus, treats the solid component with a basic liquid to oxidize the manganese dioxide in the solid component and form a regenerated manganate salt, which may be recycled back to the oxidation reactor.


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Tammana, Veera Venkata Ramakrishna. (2018). Liquid phase oxidation of aromatic feedstocks with manganate recycling to produce carboxylic acids (U.S. Patent No. 9902677). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/9902677

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