To produce a pure-phase crystalline, micro- and mesoporous metallic silicate having high catalyst activities by carrying out the hydrothermal reaction using a pyrolytic metal-silicon mixed oxide as a source for silicon and a metal.
A pyrolytic metal-silicon-mixed oxide, preferably (SiO2)1-x(TiO2)x, (SiO2)1-x(Al2O3)x, (SiO2)1-x(B2O3)x, (SiO2)1-x(V2O5)x or (SiO2)1-x(ZrO2)x [(x) is 0.0001-0.25] is used as a source for silicon and a metal and the hydrothermal reaction is carried out in the presence of a tetraalkylammonium hydroxide compound as a template compound at 0.05-2.0 molar ratio of OH-/SiO2. The hydrothermal reaction is conducted at 1-200 molar ratio of the H2O/SiO2 at 100-220°C temperature in the case of producing a microporous metallic silicate and 25-200°C temperature in the case of producing a mesoporous metallic silicate for 1-50hr. The template compound is removed by extraction or calcining at 300-1,000°C.
MANGOLD HELMUT DR
ROLAND ECKEHART DR
SCHOLZ MARIO DR
THIELE GEORG DR
