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. 25, 2023
Filed:
Mar. 04, 2021
Applicant:
Sabic Global Technologies B.v., Bergen op Zoom, NL;
Inventors:
Assignee:
SABIC GLOBAL TECHNOLOGIES B.V., Bergen Op Zoom, NL;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C 29/76 (2006.01); B01D 15/20 (2006.01); B01J 47/016 (2017.01); B01J 39/05 (2017.01); B01D 15/36 (2006.01); B01J 39/20 (2006.01);
U.S. Cl.
CPC ...
C07C 29/76 (2013.01); B01D 15/20 (2013.01); B01D 15/362 (2013.01); B01J 39/05 (2017.01); B01J 39/20 (2013.01); B01J 47/016 (2017.01);
Abstract
Method for lowering aldehyde content in a mixture comprising (i) diethylene glycol (DEG) and/or triethylene glycol (TEG) and (ii) aldehyde are disclosed. An ion exchange resin is soaked in monoethylene glycol. The mixture comprising 5 to 200 ppm aldehyde is then flowed to make contact with the soaked ion exchange resin to produce a product comprising DEG and/or TEG and less than 15 ppm aldehyde.