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.
Patent No.:
Date of Patent:
Nov. 23, 2021
Filed:
Aug. 09, 2018
Sabic Global Technologies, B.v., Bergen op Zoom, NL;
Syed Azhar Hashmi, Riyadh, SA;
Sankaran B. Nedumbamana, Bangalore, IN;
Paresh Bhagvanbhai Rasadiya, Baroda, IN;
SABIC GLOBAL TECHNOLOGIES B.V., Bergen op Zoom, NL;
Abstract
A method of reducing impurities in a catalyst for the production of purified terephthalic acid includes forming purified terephthalic acid by hydrogenating crude terephthalic acid with a catalyst in a reactor; separating the purified terephthalic acid from the catalyst and reactivating the catalyst by washing with a caustic solution; and flushing the catalyst contaminated with impurities with a non-caustic liquid at a flushing temperature of greater than or equal to 50° C.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile