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:
Apr. 07, 2020
Filed:
Mar. 29, 2018
Eastman Chemical Company, Kingsport, TN (US);
Mesfin Ejerssa Janka, Kingsport, TN (US);
Kenny Randolph Parker, Afton, TN (US);
Ashfaq Shahanawaz Shaikh, Kingsport, TN (US);
Lee Reynolds Partin, Kingsport, TN (US);
Charles Edwan Sumner, Kingsport, TN (US);
Shane Kipley Kirk, Church Hill, TN (US);
Eastman Chemical Company, Kingsport, TN (US);
Abstract
A process for purifying a crude furan 2,5-dicarboxylic acid composition (cFDCA) by hydrogenation of a FDCA composition dissolved in a hydrogenation solvent such as water, and hydrogenating under mild conditions, such as at a temperature within a range of 130° C. to 225° C. by contacting the solvated FDCA composition with hydrogen in the presence of a hydrogenation catalyst under a hydrogen partial pressure within a range of 10 psi to 900 psi.