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:
May. 22, 2012
Filed:
Aug. 11, 2008
Paul D. Hanke, Urbana, IL (US);
Paul D. Hanke, Urbana, IL (US);
Archer Daniels Midland Company, Decatur, IL (US);
Abstract
A method of converting hydroxymethylfurfural and is derivative species into hydroxymethylfurfural oxidation products is disclosed. The method includes contacting the hydroxymethylfurfural species in a mixture with an enzyme that oxidizes the hydroxymethylfurfural species while controlling hydrogen peroxide in the mixture. In one exemplary embodiment the enzyme is chloroperoxidase and the hydrogen peroxide is metered into the mixture to predominantly and selectively make at least one of formylfuran carboxylic acid or furan dicarboxylic acid. In another embodiment the enzyme is aryl alcohol oxidase and catalase is included in the mixture to remove unwanted hydrogen peroxide by product and the reaction predominantly makes at least one of dimethylfuran or formylfuran carboxylic acid. When the predominant product is a carboxylic acid or furan dicarboxylic acid, it can be recovered in substantially pure form by acid precipitation.