METHOD OF CATALYTICALLY ACTIVE LAMELLAR SILICATES PRODUCTION Russian patent published in 2008 - IPC B01J21/16 B01J37/30 B01J37/08 B01J23/72 B01D53/94 

FIELD: technological processes.

SUBSTANCE: subject of invention is method of catalytically active lamellar silicates production with single or multiple layers, in particular, clays with interlaminar struts from A1 and/or Ti, for purification of spent gases. At that at the stage of interlaminar struts formation, metal solution is added into lamellar silicate and the received mixture at the stage of drying/calcination is heated with formation of struts supporting intermediate layer out of metal atoms. After that catalytically active salt of transition metal is added in the dry form to the received dry substance. Finally the prepared dry mixture is heated up to the temperature of higher than 300°C, as a result catalytically active transition metal atoms are introduced into immediate layer, and at the same time dry mixture calcination takes place. As metal solution, solutions of aluminium, titanium, iron, copper and chrome are used. As catalytically active salt of metal, in particular, nitrate or sulphate of copper, titanium or lanthanum are used.

EFFECT: method allows to relatively quickly obtain catalytically active lamellar silicates without exhausts.

15 cl, 1 ex, 1 tbl, 1 dwg