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. 19, 2026
Filed:
May. 28, 2020
Applicant:
Dfi Usa, Llc, Moses Lake, WA (US);
Inventors:
Jonathan Stapley, Mercer Island, WA (US);
David Genders, Lancaster, NY (US);
Assignee:
DFI USA, LLC, , WA (US);
Primary Examiner:
Int. Cl.
CPC ...
C07H 1/00 (2006.01); B01J 23/52 (2006.01); C07H 3/02 (2006.01);
U.S. Cl.
CPC ...
C07H 3/02 (2013.01); B01J 23/52 (2013.01); C07H 1/00 (2013.01);
Abstract
A method has now been found for the preparation of calcium, magnesium, and zinc salts of sugar acids, this being the object of the present invention, which is characterized in that the method may include providing a sugar and oxidizing the sugar to a sugar acid in the presence of a noble metal catalyst, oxygen, and a heterogeneous hydroxide source. Preferably the oxidation is carried out with a gold catalyst, and a heterogeneous source of magnesium, calcium, or zinc hydroxide. The oxidation can be performed in a batch or continuous manner.