OIL FRACTION HYDROISOMERIZATION CATALYST AND METHOD OF PREPARATION THEREOF Russian patent published in 2001 - IPC

FIELD: petrochemical reaction catalysts. SUBSTANCE: catalyst contains, %: platinum, 0.2-0.6; indium, 0.05-1.0; zeolite ZVM H-form, 10-50; and alumina is prepared by peptization of aluminum hydroxide with hydrochloric acid solution of indium oxycarbonate followed by adding zeolite ZVM ammonium form to indium-modified aluminum hydroxide, calcination to form carrier, and impregnating the latter with chloroplatinic acid in presence of competitor. Another preparation way consists in adding 0.05-1.0% of indium in the form of indium oxycarbonate suspension to peptized aluminum hydroxide mixed with 10-50% of zeolite ZVM ammonium form, calcination to form carrier, and impregnating the latter with chloroplatinic acid in presence of competitor. EFFECT: increased catalytic activity regarding hydroisomerization of normal paraffins. 3 cl, 1 tbl, 6 ex