METHOD OF MAKING CATALYST SUPPORT Russian patent published in 2010 - IPC B01J21/04 B01J32/00 B01J35/04 B01J37/08 B01J23/50 B01J37/02 C07D301/10 

FIELD: chemistry.

SUBSTANCE: present invention relates to catalysts supports which are used as supports for metal and metal oxide components of catalysts used in different chemical reactions. The invention describes a catalyst support precursor which contains a mixture of alpha aluminium oxide and/or transition aluminium oxide; binder; and a solid sponging agent which expands or releases gas when sufficient heat is supplied. A method of making a catalyst support is described, which involves preparation of the catalyst support precursor described above and water, moulding the obtained precursor into a structure, heating the said structure for a sufficient time and at temperature sufficient for formation of a porous structure as a result of the effect of the sponging agent, and then heating the porous structure for a sufficient time and at temperature sufficient for melting of the porous structure, thereby forming a porous catalyst support. A catalyst preparation method is described, which involves the above described steps for making a porous catalyst support and depositing a catalytically effective amount of silver onto the surface of the support. Described also is a catalyst made using the method described above and a method for oxidising ethylene in the presence of the said catalyst. Described also are catalyst support precursors which contain alpha aluminium oxide and/or transition aluminium oxide, binder, a sponging agent and/or talc or a water-soluble titanium compound, and methods of making the said precursors.

EFFECT: increased bearing strength of the carrier, optimum surface area and porosity, which eliminates diffusion resistance for reagents and gaseous products under reaction conditions.

33 cl, 1 tbl, 14 ex