CATALYST FOR OXYCHLORINATION OF ETHYLENE INTO 1,2-DICHLOROETHANE Russian patent published in 2006 - IPC B01J27/122 B01J27/138 B01J21/04 B01J37/02 C07C17/156 C07C19/45 

FIELD: organic synthesis catalysts.

SUBSTANCE: catalyst includes Cu and Mg compounds deposited on alumina as carrier and has copper compounds, expressed as Cu, from 2 to 8%, Mg/Cu atomic ratio ranging from 1.2 to 2.5, wherein concentration of copper atoms is higher in the interior of catalyst particle than on the surface (layer 20-30 Å thick) thereof and concentration of magnesium atoms prevails on the surface of catalyst particle, while specific surface of catalyst ranged from 30 to 130 m²/g. Oxychlorination of ethylene is carried out under fluidized bed conditions using air and/or oxygen as oxidants in presence of above-defined catalyst. Catalyst is prepared by impregnating alumina with aqueous Cu and Mg solutions acidified with hydrochloric acid solution or other strong acids using volume of solution equal or lesser than porosity of alumina.

EFFECT: increased activity of catalyst at high temperatures and avoided adhesion of catalyst particles and loss of active components.

8 cl, 2 tbl, 5 ex