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:
Jun. 13, 2017

Filed:

Jan. 14, 2016
Applicant:

Eastman Chemical Company, Kingsport, TN (US);

Inventors:

Mesfin Ejerssa Janka, Kingsport, TN (US);

Kenny Randolph Parker, Afton, TN (US);

Paula Moody, Johnson City, TN (US);

Ashfaq Shahanawaz Shaikh, Kingsport, TN (US);

Lee Reynolds Partin, Kingsport, TN (US);

Bradford Russell Bowers, Chuckey, TN (US);

Michael Charles Morrow, Kingsport, TN (US);

Assignee:

Eastman Chemical Company, Kingsport, TN (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07D 307/68 (2006.01); C07D 307/60 (2006.01);
U.S. Cl.
CPC ...
C07D 307/68 (2013.01); C07D 307/60 (2013.01);
Abstract

Disclosed is a process to produce a dry purified carboxylic acid product comprising furan-2,5-dicarboxylic acid (FDCA). The process comprises oxidizing at least one oxidizable compound selected from the following group: 5-(hydroxymethyl)furfural (5-HMF), 5-HMF esters (5-R(CO)OCH-furfural where R is alkyl, cycloalkyl, or aryl), 5-HMF ethers (5-R'OCH-furfural where R′ is alkyl, cycloalkyl, or aryl), 5-alkyl furfurals (5-R″-furfural where R″ is alkyl, cycloalkyl, or aryl), mixed feedstocks of 5-HMF and 5-HMF esters, mixed feedstocks of 5-HMF and 5-HMF ethers, and mixed feedstocks of 5-HMF and 5-alkyl furfurals to generate a crude carboxylic acid slurry comprising FDCA.


Find Patent Forward Citations

Janka, Mesfin. (2017). Oxidation process to produce a purified carboxylic acid product via solvent displacement and post oxidation (U.S. Patent No. 9676740). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/9676740

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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