FIELD: preparation of catalysts and adsorbents. SUBSTANCE: porous crystalline materials composed of xTiO2•(1-x)SiO2 where x = 0.0005 to 0.04 are prepared by hydrothermal treatment of blend in autoclave, the blend containing silicon and titanium oxide sources, nitrated organic base, and water. EFFECT: improved procedure. 5 cl, 3 dwg, 3 tbl
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