Zeolitized composite bodies and manufacture thereof

Details Zeolitized composite bodies and manufacture thereof Zeolitized composite bodies and manufacture thereof

B - Operations, Transporting

01

J

252/2.A

B01J 35/02 (2006.01) B01J 29/28 (1980.01)

Patent

CA 1143710

ZEOLITIZED COMPOSITE BODIES & MANUFACTURE THEREOF ABSTRACT OF THE DISCLOSURE An improved process for the production of mech- anically strong shaped crystalline zeolitic aluminosilicate bodies from precursor bodies composed of kaolin clay calcined at elevated temperature, the crystallized bodies having es- sentially the same size and shape as the precursor bodies. Conversion of the calcined clay contained in the precursor bodies to a mixture of crystalline zeolitic aluminosilicate component and a porous amorphous silica-alumina component takes place as a result of reaction between the calcined clay and an aqueous alkaline liquid in which the bodies are im- mersed. The improved process features the presence of a solution of aluminosilicate nucleation centers during such reaction.

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