• 专利标题:   Preparation of tin-based catalyst used for hydration reaction of acetylene to generate acetaldehyde by dissolving tin-containing precursor and base metal additive in solvent, stirring, dropping on porous solid carrier, soaking, and drying.
  • 专利号:   CN113145142-A, CN113145142-B
  • 发明人:   ZHAO J, YUE Y, PANG X, WANG B, ZHU W, WANG S, FENG T, WANG T, ZHAO D
  • 专利权人:   UNIV ZHEJIANG TECHNOLOGY
  • 国际专利分类:   B01J027/135, B01J027/138, B01J027/186, B01J027/24, B01J029/40, B01J035/06, B01J037/34, C07C045/26, C07C047/06
  • 专利详细信息:   CN113145142-A 23 Jul 2021 B01J-027/138 202178 Pages: 9 Chinese
  • 申请详细信息:   CN113145142-A CN10179828 07 Feb 2021
  • 优先权号:   CN10179828

▎ 摘  要

NOVELTY - Preparation of tin-based catalyst comprises dissolving tin-containing precursor and base metal additive in solvent, stirring, dropping on porous solid carrier at 20-30 degrees C to carry out equal volume immersion under the action of electrostatic field for 0.5-2 hours, and drying to 40-110 degrees C for 8-24 hours. The base metal additive is salt of bismuth, barium, iron, manganese, zinc, potassium, calcium and/or nickel metal. USE - The method is for preparation of tin-based catalyst used for hydration reaction of acetylene to generate acetaldehyde (claimed). ADVANTAGE - The method solves the not good acetylene conversion rate and selectivity and poor stability problems of acetylene hydration reaction to generate acetaldehyde. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for application of tin-based catalyst in hydration reaction of acetylene to generate acetaldehyde comprising adding tin-based catalyst to reactor, passing through raw material gas water and acetylene, and reacting to 100-200 degrees C at 0.01-2 MPa.