CATALYST FOR OBTAINING SYNTHETIC BASIC OILS IN PROCESS OF ETHYLENE COOLIGOMERISATION WITH C6-C10 ALPHA-OLEFINS AND METHOD OF PREPARING THEREOF Russian patent published in 2014 - IPC B01J23/30 B01J23/652 B01J23/36 B01J37/02 C10G50/00 C07C2/10 C07C2/14 

FIELD: chemistry.

SUBSTANCE: catalyst contains tungsten oxide, a promoter and a carrier, which includes an oxide component and a binding agent. As the promoter used is Pd or Re or their oxides. The oxide component of the carrier represents granulated zirconium and/or cerium oxide with the length of granules 2-5 mm and diameter 2-2.5 mm. As the binding agent boehmite is used. The catalyst has the following composition (wt %): tungsten oxide - 5-20; promoter - 0.1-0.5; carrier boehmite - 10-20; zirconium and/or cerium oxide - 59.5-84.9. A method of the catalyst preparation includes preparation of a granulated carrier, application of a tungsten compound on the calcined carrier, drying, addition of the promoter and calcination. The carrier is prepared from zirconium and/or cerium oxide, boehmite, with preparation of the carrier being realised by mixing a boehmite powder and zirconium and/or cerium oxide with a particle size not larger than 0.5 mm, a plasticiser - truethylene glycol, a mixture is moistened and peptised with 60-64% solution of nitric acid, mixed until a homogeneous mass is obtained, which is granulated by extrusion with obtaining 2-5 mm long granules with a diameter 2-2.5 mm. The granules are dried at a temperature of 20-110°C and calcined in an air flow at a temperature of 450-650°C for 3-5 hours. Tungsten oxide is applied on the granules in an amount of 5-20% by their impregnation with a water solution of silicotungstic acid, after which the catalysts are dried in air.

EFFECT: increased mechanical strength of the catalyst, the catalytic activity and isomerisation ability.

2 cl, 1 tbl, 10 ex