Titanium-containing porous silica and process of preparing same

Details Titanium-containing porous silica and process of preparing same Titanium-containing porous silica and process of preparing same

1998-03-23

1999-09-28

Bell, Mark L.

Chemistry of inorganic compounds

Zeolite

Organic compound used to form zeolite

423713, 423326, C01B 3320

Patent

active

059583690

ABSTRACT:
A titanium-containing porous silica having a molecular sieve framework in which more than 3 mole % but not more than 25 mole % of silicon ions are isomorphously substituted by titanium ions. The porous silica may be obtained by gradually adding a liquid containing water and an alkylamine to a mixture containing a silicon alkoxide and a titanium alkoxide with stirring to hydrolyze the silicon alkoxide and the titanium alkoxide and to obtain a gel. The gel is then dried and calcined to obtain the titanium-containing porous silica.

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Corma et al., "Sythesis of an Ultralarge Pore Titanium Silicate Isomorphous to MCM-41 and its Application as a Catalyst for Selective Oxidation of Hydrocarbons," J. Chem. Soc., Chem. Commun., pp. 147-148, 1994.
Tanev et al., "Titanium-Containing Mesoporous Molecular Sieves for Catalytic Oxidation of Aromatic Compounds," Nature, vol. 368, pp. 321-323, Mar. 1994.

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