| abstract |
A titanium-containing silicon oxide molded catalyst satisfying all of the following conditions (1) to (4): (1) an average pore diameter is 10 ANGSTROM or more, (2) 90% or more of the whole pore volume have pore diameters of 5 to 200 ANGSTROM , (3) a specific pore volume is 0.2 cm<3>/g or more, and (4) it is obtained by using as a template a quaternary ammonium ion of the following general formula (I) or an amine of the following general formula (II), then, removing the template. ÄNR<1>R<2>R<3>R<4>Ü<+> (in the formula (I), R<1> represents a linear or branched hydrocarbon group having 2 to 36 carbon atoms, and R<2> to R<4> represent an alkyl group having 1 to 6 carbon atoms.) NR<5>R<6>R<7> (in the formula (II), R<5> represents a linear or branched hydrocarbon group having 2 to 36 carbon atoms, and R<6> and R<7> represent hydrogen or an alkyl group having 1 to 6 carbon atoms.). |