METHOD FOR PREPARATION OF HIERARCHICAL TS-1 MOLECULAR SIEVE

    公开(公告)号:EP3862320A1

    公开(公告)日:2021-08-11

    申请号:EP18940105.2

    申请日:2018-11-15

    IPC分类号: C01B39/08 B01J29/89 C01B37/00

    摘要: The present application discloses a method for preparing a hierarchical porous TS-1 molecular sieve, which uses a silicon-titanium ester polymer as both titanium source and silicon source. In the method, silicon and titanium are uniformly connected to a same polymer, and the hydrolysis rates thereof are equivalent during hydrolysis, which can prevent TiO 2 precipitation and reduce the generation of non-framework titanium. Further, the silicon-titanium ester polymer is not only used as both silicon source and titanium source, but also can be used as mesoporous template in the synthesis process. The obtained TS-1 molecular sieve has mesoporous structure with narrow pore size distribution, which plays an important role in promoting the application of TS-1 molecular sieve in the field of catalysis.