MIXED OXIDE OF CERIUM AND ANOTHER RARE-EARTH ELEMENT WITH HIGH SPECIFIC SURFACE AREA, METHOD OF OBTAINING SAID OXIDE AND USE IN CATALYSIS Russian patent published in 2012 - IPC C01F17/00 B01J23/10 

FIELD: chemistry.

SUBSTANCE: invention relates to a composition consisting of cerium oxide and an oxide of another rare-earth element with high specific surface area of 20 m²/g after calcination at temperature 1000°C for 5 hours. The method of obtaining the composition involves a step for preparing a medium containing a cerium compound, heating said medium, separating the precipitate from the liquid medium, adding a compound of another rare-earth element and obtaining another liquid phase, heating the obtained medium, changing pH of the reaction mixture obtained after heating to a basic pH, separating and calcining the precipitate.

EFFECT: composition is effective when used as a catalyst or catalyst support at high temperatures.

12 cl, 2 tbl, 7 ex