• 专利标题:   Preparing glyoxylic acid from methyl glycolate comprises contacting the material containing methyl glycolate and mixed solvent with an oxidation catalyst and a hydrolysis catalyst in the presence of an oxygen source and reacting.
  • 专利号:   CN112778118-A, CN112778118-B
  • 发明人:   HUANG Y, GAO J, XU J, SUN Y, MIAO H, DU W, SHI S, ZHENG X
  • 专利权人:   CAS DALIAN CHEM PHYSICAL INST
  • 国际专利分类:   B01J023/75, B01J027/24, C07C051/09, C07C051/373, C07C059/147
  • 专利详细信息:   CN112778118-A 11 May 2021 C07C-051/09 202149 Pages: 7 Chinese
  • 申请详细信息:   CN112778118-A CN11069312 05 Nov 2019
  • 优先权号:   CN11069312

▎ 摘  要

NOVELTY - Preparing glyoxylic acid from methyl glycolate comprises contacting the material containing methyl glycolate and mixed solvent with an oxidation catalyst and a hydrolysis catalyst in the presence of an oxygen source and reacting to obtain glyoxylic acid, where air and/or oxygen are used as the oxygen source, the oxidation catalyst is obtained by supporting a metal on a nitrogen-doped carbon material, the hydrolysis catalyst is a solid acid, and the mixed solvent includes a polar solvent and water. USE - The method is useful for preparing glyoxylic acid from methyl glycolate. ADVANTAGE - The method has low raw material cost, high conversion rate and product selectivity, and mild reaction conditions.