High temperature enclosed type synthesized high-performance water permeability zeolite molecular sieve film and method for producing the same

High temperature enclosed type synthesized high-performance water permeability zeolite molecular sieve film and method for producing the same

  • CN 101,219,346 A
  • Filed: 09/27/2007
  • Published: 07/16/2008
  • Est. Priority Date: 09/27/2007
  • Status: Active Application
First Claim
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1. high temperature enclosed preparation high-performance permeable type zeolite molecular sieve film, it is characterized in that adopting the new method of high temperature enclosed hydrothermal synthesis reaction, perforated tubular supporter outer surface prepare fast one deck high osmosis can NaA type molecular sieve film, it prepares as follows:

  • With sodium metasilicate (Na2OnSiO2), aluminium hydroxide (Al (OH)

         3) is silicon, aluminium source raw material, and NaOH is as the alkali raw material, preparation raw material liquid SiO2-Na2O-Al2O3-H2O system, and the each component mol ratio is;

    SiO2/Al2O3=

    1~

    4,

    Na2O/SiO2=

    0.2~

    2,

    H2O/Na2O=

    20~

    300。

    The material liquid for preparing adds in the stainless steel cauldron, and inserts the tubular type porous supporting body of precoating NaA type molecular sieve crystal seed, and reaction temperature is 120~

    150 ℃

    , synthetic 1.5~

    3 hours of hydro-thermal;

    After finishing, reaction takes out flush away surface alkali lye, oven dry.

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