• 专利标题:   Preparation of porous graphene/molecular sieve composite film acid catalyst used in organic catalytic reaction, by mixing aluminum and silicon sources and tetrapropyl ammonium hydroxide, mixing with graphene aqueous dispersion and stirring.
  • 专利号:   CN107349955-A
  • 发明人:   HUANG J, WANG J, LIN X, WANG Y, ZHANG H
  • 专利权人:   UNIV SOUTH CHINA TECHNOLOGY
  • 国际专利分类:   B01J029/40, C07C041/56, C07C043/305, C07C045/74, C07C049/835, C07D317/20
  • 专利详细信息:   CN107349955-A 17 Nov 2017 B01J-029/40 201783 Pages: 12 Chinese
  • 申请详细信息:   CN107349955-A CN10485274 23 Jun 2017
  • 优先权号:   CN10485274

▎ 摘  要

NOVELTY - A porous graphene/molecular sieve composite film acid catalyst is prepared by mixing aluminum source, silicon source, tetrapropyl ammonium hydroxide and deionized water to obtain molecular sieve precursor solution, uniformly mixing with graphene aqueous dispersion, continuously stirring to assemble reaction, washing precipitate, drying, dispersing in molecular sieve precursor solution, continuously stirring and secondary growth reacting to molecular sieve, washing, drying, sintering, placing into ammonium nitrate solution, stirring and ion exchanging, and secondary sintering. USE - Method for preparing porous graphene/molecular sieve composite film acid catalyst used in organic catalytic reaction (all claimed). ADVANTAGE - The product is recyclable, has high purity, strong mechanical performance, excellent catalytic performance in acid catalysis field, and has improved molecular sieve acidic strength, catalytic performance and cycle stability. The method is easy, simple, has high repeatability, and suitable for industrialization. DETAILED DESCRIPTION - A porous graphene/molecular sieve composite film acid catalyst is prepared by mixing aluminum source, silicon source, tetrapropyl ammonium hydroxide and deionized water to obtain molecular sieve precursor solution, uniformly mixing with graphene aqueous dispersion, continuously stirring to assemble reaction, washing precipitate, drying, dispersing in molecular sieve precursor solution, continuously stirring and secondary growth reacting to molecular sieve, washing, drying, sintering under air atmosphere, placing into ammonium nitrate solution, stirring and ion exchanging, and secondary sintering under air atmosphere.