FIELD: chemistry.
SUBSTANCE: invention relates to a method of producing a base composition of lubricating oil, which includes a first step, where the a first oil is obtained by bringing into contact starting oil materials containing normal paraffin, having 20 or more carbon atoms, with a first catalyst in the presence of molecular hydrogen; and a second step, where a second oil is obtained by bringing into contact the first oil with a second catalyst in the presence of molecular hydrogen. The first catalyst comprises a first support in which desorption of NH3 at 300-800°C is 80-90% with respect to total desorption of NH3 when estimating the temperature dependence of desorption of ammonia; a first metal which is deposited on the first support and consists of at least one metal selected from metals of group 6 of the periodic table of elements; and a second metal which is deposited on the first support and consists of at least one metal selected from metals of groups 8-10 of the periodic table of elements. Overall, content C1 (wt %) of the first metal in the first catalyst with respect to oxide and content C2 (wt %) of the second metal in the first catalyst with respect to oxide, specifically C1+C2 is 22-36 wt %; and the ratio of content of the first metal D1 (mol) in the first catalyst to content of the second metal D2 (mol) in the first catalyst, specifically D1/D2 is 1.07-7.78.
EFFECT: high output of the lubricating oil of high quality.
14 cl, 5 tbl, 21 ex
