Process for production of titanium-containing silicon oxide catalysts
A process for producing a titanium-containing silicon oxide catalyst satisfying
the following conditions, which comprises the following steps:
(1): an average pore diameter of 10 or more,
(2): a pore diameter of 90% or more of the total pore volume of 5 to
200 ,
(3): a specific pore volume of 0.2 cm3/g or more, and
(4): a quaternary ammonium ion represented by the following general
formula (I) is used as the template and then the template is removed by solvent extraction,
(wherein, R1 represents a linear or branched hydrocarbon group
having 2 to 36 carbon atoms, and R2 to R4 represent an alkyl
group having 1 to 6 carbon atoms);
first step: a step for obtaining a solid containing a catalyst component
and a template by mixing and stirring a silica source, a titanium source and a
template in liquid phase,
second step: a step of drying the solid obtained in the first step under
a condition of a temperature of 120 C. or less, and
third step: a step of removing the template by subjecting the solid
dried in the second step to solvent extraction.
