• 专利标题:   Preparing catalyst used for preparing vanillic aldehyde and 4-methyl guaiacol, involves mixing metal nickel salt, cobalt salt, carbon source, and amine source in solvent in certain proportion, heating, stirring to form uniform jelly, and drying jelly to obtain the catalyst precursor.
  • 专利号:   CN115715982-A
  • 发明人:   CHEN L, ZHANG Q, ZHANG X, MA L, LIU J
  • 专利权人:   UNIV SOUTHEAST
  • 国际专利分类:   B01J023/755, B01J027/24, B01J035/00, C07C041/18, C07C041/26, C07C043/23
  • 专利详细信息:   CN115715982-A 28 Feb 2023 B01J-023/755 202324 Chinese
  • 申请详细信息:   CN115715982-A CN11279513 19 Oct 2022
  • 优先权号:   CN11279513

▎ 摘  要

NOVELTY - Preparing catalyst involves mixing metal nickel (Ni) salt, cobalt (Co) salt, carbon source, and amine source in a solvent in a certain proportion, heating, stirring at 50-80℃ to form a uniform jelly, drying the jelly at a temperature of 50-120℃ to obtain the catalyst precursor Ni-Co, heating obtained catalyst precursor Ni-Co, calcining in an inert gas flow to obtain a catalyst, heating catalyst, acid-washing in an environment of 50-80℃, washing at room temperature until neutral, freezing-drying, grinding, and sieving to obtain a nitrogen-doped graphene-coated metal catalyst Ni-Co doped N/C. USE - Method for preparing catalyst used for preparing vanillic aldehyde and 4-methyl guaiacol (claimed) . ADVANTAGE - The method has controllable product diversity, good selectivity, high conversion efficiency, mild conditions, etc., and the catalyst is easy to recycle and use, and has cost-effective, and is a successful example of high-value hydrogenation of biomass platform compounds such as vanillin. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are included for: 1. a catalyst for preparing vanillic aldehyde (VA) and 4-methyl guaiacol (MMP) is prepared by the catalyst preparation method; 2. a catalytic method suitable for preparing VA and MMP, which involves: (a) using the catalyst for preparing VA and MMP; (b) placing catalyst in the fixed-bed reactor; (c) adding the organic solution of vanillin; (d)setting the reaction pressure, flow rate and temperature, and taking directly samples online to obtain the corresponding vanillic aldehyde and 4-methylguaiacol.