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Use of amphiphilic compounds to produce novel classes of crystalline oxide materials

  • US 5,250,282 A
  • Filed: 10/27/1992
  • Issued: 10/05/1993
  • Est. Priority Date: 01/25/1990
  • Status: Expired due to Term
First Claim
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1. A process for using an amphiphilic compound to prepare a highly porous crystalline oxide material exhibiting an X-ray diffraction pattern with at least one peak at a position greater than about 18 Angstrom Units d-spacing with a relative intensity of 100 and a benzene adsorption capacity of greater than about 15 grams benzene per 100 grams anhydrous crystal at 50 torr and 25°

  • C., said process comprising the steps of;

    (a) preparing a reaction mixture capable of forming a precursor to said crystalline oxide material, said reaction mixture comprising one or more sources of at least one oxide, a solvent or solvent mixture and an amphiphilic compound;

    (b) maintaining said mixture under sufficient conditions of pH, temperature and time for formation of a crystalline oxide containing residual amphiphilic compound;

    (c) recovering said crystalline oxide containing residual amphiphilic compound from step (b); and

    (d) calcining said recovered material from step (c) under conditions sufficient to remove residual amphiphilic compound,wherein said amphiphilic compound is a cetyltrimethylammonium compound, and wherein said reaction mixture of step (a) has the mole ratio
    
    
    space="preserve" listing-type="equation">Solvent/(R'"'"'.sub.2 O+M.sub.2 O)of greater than 92, where R'"'"' is said amphiphilic compound and M is alkali metal or alkali earth metal, and wherein the calcined material from step (d) has a hexagonal electron diffraction pattern and a pore size of at least 13 Angstroms.

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