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:
Nov. 03, 2020
Filed:
Nov. 06, 2017
Archer Daniels Midland Company, Decatur, IL (US);
Chi Cheng Ma, Champaign, IL (US);
ARCHER DANIELS MIDLAND COMPANY, Decatur, IL (US);
Abstract
A process is described for producing biobased 1,2-propanediol, comprising reacting a glycerol-containing feed containing less than 5 weight percent of water with hydrogen in the presence of a catalyst, to partially convert glycerol in the glycerol containing feed to a crude reaction product mixture including 1,2-propanediol, removing 10 water from the crude reaction product mixture, recovering a portion but not all of the 1,2-propanediol from the crude reaction product mixture, and recycling the remainder of the 1,2-propanediol with unconverted glycerol and combining these with makeup glycerol to provide additional of the essentially anhydrous, glycerol-containing feed.