Beta molecular sieve with multistage pore structure and preparation method thereof

Beta molecular sieve with multistage pore structure and preparation method thereof

  • CN 104,418,348 A
  • Filed: 03/21/2014
  • Published: 03/18/2015
  • Est. Priority Date: 08/20/2013
  • Status: Active Application
First Claim
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1. a Beta molecular sieve, is characterized in that, there is the material containing following structural unit in molecular sieve pore passage:

  • wherein, n is positive integer;

    Described Beta molecular sieve, through roasting, removes and contains after the material of structural unit, the II level containing to be the mesoporous and aperture of the I level of 2 ~ 4.8nm be in aperture 4.9 ~ 13nm is mesoporous;

    Preferred pore diameter range is, the mesoporous aperture of described I level is 2 ~ 4nm, and described II level mesoporous pore size is 5 ~ 10nm;

    Further preferred pore diameter range is, the mesoporous aperture of described I level is 3 ~ 4nm, and described II level mesoporous pore size is 7 ~ 10nm.

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