METHOD OF PREPARING OXIDE CATALYSTS USING MICROWAVE EMISSION (OPTIONS) Russian patent published in 2007 - IPC B01J37/34 B01J35/12 B01J23/10 B01J23/70 

FIELD: oxide catalyst preparation methods.

SUBSTANCE: invention relates to preparation of oxide-structure catalysts and provides a method for preparing oxide catalyst characterized by mixing two or more salt precursors of catalyst components followed by melting resulting mixture to achieve homogenous melt, cooling this melt to room temperature and subsequent decomposition of salts and calcination, wherein salt precursors of catalyst components are selected from d-metal nitrates (Ce and Y nitrates), melting of mixture is effected at 90 to 170°C in presence of ammonium nitrate used at ratio (2-10):1 to metal nitrate mixture, and decomposition of the melt into oxides is performed under effect of microwave emission. In a preferred embodiment of invention, microwave emission is used for 0.5-5 min at working frequency 2.45 GHz and power 600-1900 W. A method of preparing oxide catalysts involving introduction of oxide structure carrier into resulting melt at continuous stirring is also described.

EFFECT: enabled preparation of oxide catalysts and spinel-structure catalysts characterized by high degree of uniformity, lack of harmful impurities in catalyst composition, high-developed surface, and high heat resistance.

8 cl, 2 tbl