A kind of preparation method with multi-stage artery structure Beta molecular sieve

A kind of preparation method with multi-stage artery structure Beta molecular sieve

  • CN 104,418,345 B
  • Filed: 03/21/2014
  • Issued: 08/20/2019
  • Est. Priority Date: 08/20/2013
  • Status: Active Grant
First Claim
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1. a kind of preparation method of Beta molecular sieve, which is characterized in that will be by silicon source, silicon source, polyquaternium -11, water and alkali sourceManufactured initial gel mixture, crystallization prepares Beta molecular sieve under 120~169 DEG C of hydrothermal conditions;

  • Wherein, polyquaternium-11 are used as structure directing agent;

    The macropore that the mesoporous and aperture that the Beta molecular sieve is simultaneously 8~20nm containing aperture is 50~200nm;

    The polyquaternium -11 is high molecular polymer, and Chinese is 2- methyl -2- acrylic acid -2- (dimethylamino) ethyl esterWith the dithyl sulfate compound of l-vinyl-2-pyrrolidone polymer;

    Molecular formula is (C6H9NO)x·

    (C10H20NO2·

    C2H5O4S)y, wherein x, y are positive integer;

    Structural formula are as follows;

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