PETROLEUM FRACTIONS HYDROFINING CATALYST AND A METHOD FOR PREPARATION THEREOF Russian patent published in 2007 - IPC B01J23/88 B01J23/83 B01J37/02 

FIELD: petroleum processing and petrochemical process catalysts.

SUBSTANCE: hydrofining catalyst is composed of, wt %: NiO 2.5-4.0, MoO₃ 8.0-12.0, Na₂O 0.01-0.08, La₂O₃ 1.5-4.0, P₂O₅ 2.0-5.0, B₂O₃ 0.5-3.0, and Al₂O₃ the rest. Preparation of the catalyst involves impregnation of sodium oxide-containing carrier with active components: nickel nitrate and ammonium paramolybdate solution followed by drying and calcination. In particular, sodium oxide-containing aluminum hydroxide is mixed with boric acid solution and nitric acid solution of lanthanum carbonate, resulting carrier is dried and calcined, after which impregnated with nickel nitrate and ammonium paramolybdate solution at pH 1.5-3.0 and temperature 40-80°C in presence of phosphoric acid.

EFFECT: enhanced efficiency of hydrofining raw materials comprising elevated amounts of unsaturated hydrocarbons.

2 cl, 2 ex