IDiyas

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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.:

US 10882032 B1

PDFFull Text
Date of Patent:
Jan. 05, 2021

Filed:

Jul. 22, 2016

Furan-2,5-dicarboxylic acid purge process

Applicant:

Eastman Chemical Company, Kingsport, TN (US);

Inventors:

Kevin John Fontenot, Jonesborough, 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, Jr., Kingsport, TN (US);

Shane Kipley Kirk, Church Hill, TN (US);

Paula Moody, Johnson City, TN (US);

Bradford Russell Bowers, Chuckey, TN (US);

Michael Charles Morrow, Kingsport, TN (US);

Assignee:

Eastman Chemical Company, Kingsport, TN (US);

Attorney:

Steven A. Owen

Primary Examiner:

Sun Jae Yoo

Int. Cl.
CPC ...
B01D 17/00 (2006.01); B01D 3/06 (2006.01); B01D 3/14 (2006.01); B01D 11/04 (2006.01); C07B 63/00 (2006.01); C07B 41/08 (2006.01); B01J 38/12 (2006.01); B01J 35/12 (2006.01); B01J 23/889 (2006.01); B01J 10/00 (2006.01); C07D 307/68 (2006.01); C07D 307/48 (2006.01); B01J 27/32 (2006.01); B01J 27/128 (2006.01);
U.S. Cl.
CPC ...
B01J 27/32 (2013.01); B01D 11/04 (2013.01); B01D 11/0446 (2013.01); B01D 17/00 (2013.01); B01J 10/002 (2013.01); B01J 23/8892 (2013.01); B01J 27/128 (2013.01); C07B 41/08 (2013.01); C07B 63/00 (2013.01); C07D 307/48 (2013.01); C07D 307/68 (2013.01); B01D 3/06 (2013.01); B01D 3/14 (2013.01); B01J 35/12 (2013.01); B01J 38/12 (2013.01); Y02P 20/584 (2015.11);
Abstract

Disclosed is an oxidation process to produce a crude carboxylic acid product carboxylic acid product. The process comprises oxidizing a feed stream comprising at least one oxidizable compound to generate a crude carboxylic acid slurry comprising furan-2,5-dicarboxylic acid (FDCA) and compositions thereof. Also disclosed is a process to produce a dry purified carboxylic acid product by utilizing various purification methods on the crude carboxylic acid.

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