▎ 摘　　要

NOVELTY - Preparing multi-chip module-22 (MCM-22) molecular sieve with multi-stage pore involves mixing multilevel pore canal graphene oxide and calcining to obtain MCM-22 molecular sieve. USE - Preparing MCM-22 molecular sieve which is used in selective reforming, isomerization, disproportionation, alkylation and catalytic reaction (claimed). ADVANTAGE - The method enables to prepare MCM-22 molecular sieve, can be used in the molecular sieve to introduce a large number of macropores, so that the macroporous pore size is increased from the traditional molecular sieve of 0.3- 1.1 cubic centimeter per gram, which greatly reduces the mass transfer resistance, and the obtained molecular sieve has good catalytic performance in selective reforming, isomerization, disproportionation, alkylation and catalytic reaction. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a method for preparing MCM-22 molecular sieve, which involves: (A) preparing graphene phase by treating the graphene oxide ultrasonically, dialysing and neutralizing to obtain graphene oxide sol; (B) synthesizing MCM-22 molecular sieve phase by the synthesis of MCM-22 molecular sieve of alkali source, aluminum source, silicon source, and dissolving template agent in the solvent water, stirring and fully mixing; (C) preparing the molecular sieve synthesis solution by mixing the prepared graphene oxide phase and the MCM-22 molecular sieve phase at a mass ratio of 1:9-7:3 and stirring until it becomes a homogeneous gel; and (D) preparing the molecular sieve synthesis solution by mixing with multi-stage hole channel MCM-22 molecular sieve into a high pressure kettle, reacting for 3-14 days under the temperature of 140-175 degrees C, continuously stirring at a speed of 50-800 rotations per minutes, at 400-1000 degrees C for 4-15 hours to obtain the product.