ZIRCONIUM OXIDE-BASED MESOPOROUS MATERIAL AND A METHOD FOR PREPARATION THEREOF Russian patent published in 2006 - IPC B01J20/06 C01G25/02 

FIELD: sorbents.

SUBSTANCE: invention provides zirconium oxide-based mesoporous material with following composition: SO4^2-/ZrO₂-EO_x, where E represents group III or IV element, x = 1.5 or 2, content of sulfate ions 0.1-10 wt %, and molar ratio ZrO₂/EO_x = 1:(0.4-1.0), said material having specific surface 300-800 m²/g with total pore volume 0.3 to 0.8 cm³/g. Method involves preparation of composition consisted of hydrated zirconium sulfate, sulfate ions, and water via precipitation of hydrated oxide phase from soluble zirconium or zirconyl salts followed by hydrothermal reprecipitation in presence of cationic surfactants to form mesoporous structure, which is then stabilized by treatment with group III or IV element compounds taken is additive proportions to mesoporous crystalline structure.

EFFECT: achieved preparation of material with controlled acid-base properties, high specific surface, and elevated heat resistance.

7 cl, 2 dwg, 6 tbl, 13 ex