FIELD: process engineering.
SUBSTANCE: this invention relates to reductive isomerisation catalyst, dewaxing of mineral oil, method of producing base oil and lubrication base oil. Invention covers reductive isomerisation catalyst. Reductive isomerisation comprises molecular sieve treated by ionic exchange or its calcinated material produced by ionic exchange of molecular sieve containing cationic fragments and using water as the primary solvent, and at least one metal selected from the group consisting of metals belonging to group VIII-X of periodic system, molybdenum and tungsten applied onto molecular sieve treated by ionic exchange, or onto its calcinated material. Dewaxing comprises converting portion of or all normal paraffins into isoparaffins whereat mineral oil containing normal paraffins is brought in contact with abode described reductive isomerisation catalyst in the presence of hydrogen. Invention covers also method of producing lubricant base oil and/or fuel base oil implemented by bringing base oil containing normal paraffins in contact isomerisation catalyst in the presence of hydrogen. Invention covers also method of producing lubricant base oil containing normal paraffins, including 10 or more carbon atoms by bringing it in contact with above describe reductive isomerisation catalyst in the presence of hydrogen in conversion of normal paraffins making in fact 100%.
EFFECT: catalyst with high isomerisation activity and sufficiently low cracking activity at high yield.
22 cl, 8 tbl, 4 ex, 11 dwg
