METHOD OF PREPARING CATALYSTS FOR DEEP HYDROFINING OIL FRACTIONS Russian patent published in 2010 - IPC B01J23/882 B01J37/02 

FIELD: chemistry.

SUBSTANCE: invention relates to preparation of catalysts for deep hydrofining oil fractions. A method is described for preparing a catalyst for deep hydrofining oil fractions, involving impregnation of an alumina support with a solution of compounds of group VIII and VI metals. The method is distinguished by that a combined impregnating solution is prepared, containing a compound of molybdenum and cobalt nitrate or cobalt acetate in molar ratio Mo/Co equal to 1.70-2.30, stabilised by 25.8-35.0 ml of 30% H₂O₂ per 100 ml of impregnating solution, at pH of the medium equal to 1.5-5.0. Aluminium oxide is impregnated once, followed by final calcination of the finished catalyst at temperature not above 400°C in an oxidative or inert medium.

EFFECT: obtaining a catalyst which enables deep hydrofining oil fractions.

4 cl, 2 tbl, 8 ex