• 专利标题:   Solid catalyst useful for Knoevenagel condensation, comprises graphene oxide and melamine, where the melamine is obtained after stably stabilizing the surface of the graphene oxide by conventional liquid phase impregnation treatment.
  • 专利号:   CN108816281-A
  • 发明人:   LIU N, YANG S, XU R, XUE B, XU J, LI Y
  • 专利权人:   UNIV CHANGZHOU
  • 国际专利分类:   B01J031/02, B01J035/10, C07C253/30, C07C255/34
  • 专利详细信息:   CN108816281-A 16 Nov 2018 B01J-031/02 201901 Pages: 6 Chinese
  • 申请详细信息:   CN108816281-A CN10426183 07 May 2018
  • 优先权号:   CN10426183

▎ 摘  要

NOVELTY - Solid catalyst comprises graphene oxide and melamine, where the melamine is obtained after stably stabilizing the surface of the graphene oxide by conventional liquid phase impregnation treatment. USE - The catalyst is useful for Knoevenagel condensation (claimed). ADVANTAGE - The method is simple and economical. The catalyst has good re-usage performance. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for preparing catalyst, comprising taking graphene oxide and melamine in a ratio of 7:1-20:1, immersing at 20-80 degrees C using solvent e.g. deionized water, ethanol or dimethyl sulfoxide, where the mass ratio of solvent to graphene oxide is 100:1-300:1, ultrasonically treating at 30-80 degrees C for 30-90 minutes, immersing for 12-24 hours under mechanical agitation, filtering at the end of the impregnation, washing, and drying.