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:
Jul. 03, 2018
Filed:
May. 22, 2017
Eastman Chemical Company, Kingsport, TN (US);
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);
Eastman Chemical Company, Kingsport, TN (US);
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.