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US Patent 11753362 Method of oxidizing glycolaldehyde using nitric acid

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Patent attributes

Patent Jurisdiction

United States Patent and Trademark Office

Patent Number

Patent Inventor Names

Philippe Marion

Sergio Mastroianni

Bright Kusema

Zhen Yan

Stéphane Streiff

Date of Patent

September 12, 2023

Patent Application Number

17612088

Date Filed

June 4, 2019

Patent Citations

US Patent 8754255 Process of preparation of glyoxylic acid aqueous solution

US Patent 9187398 Nitric acid oxidation processes

US Patent 7094932 Production of glycolaldehyde by hydrous thermolysis of sugars

Patent Primary Examiner

Yate′ K Cutliff

CPC Code

The present invention relates to a method of synthesizing at least one organic acid comprising oxidizing glycolaldehyde with nitric acid in the presence of a solvent. Advantageously, it is an industrially applicable process, which prepares organic acid, notably glycolic acid and/or glyoxylic acid in a high yield based on bio-based feedstocks.

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