| abstract |
The invention relates to the field of zeolite molecular sieve and industrial catalysis, and specifically discloses a method for preparing a titanium-silicon molecular sieve Ti-MWW. The method comprises the following steps: (1) preparing a reaction solution from raw materials, wherein the raw materials include molecular sieve MWW, titanium source and acid aqueous solution; (2) the product obtained after the reaction solution obtained in step (1) is mixed and reacted is filtered, washed, dried and calcined to obtain the titanium-silicon molecular sieve Ti-MWW. The synthesis method of the invention has the following advantages: the titanium-silicon molecular sieve Ti-MWW synthesized in an acidic fluorine-free system only contains framework titanium species, the synthesis process is simple, the operation is convenient, the industrial production and application are easy to realize, and its catalytic performance is excellent. |