FIELD: chemistry.
SUBSTANCE: invention relates to a method of producing base oil which involves bringing C10+ hydrocarbon material into contact with a catalyst and hydrogen in isomerisation conditions to obtain base oil. The catalyst contains a molecular sieve, having the topology of a MTT structure and crystallite diameter from 200 to 400 Å in the longest direction, at least one metal selected from a group consisting of Ca, Cr, Mg, La, Na, Pr, Sr, K and Nd, and at least one group VIII metal. The invention also relates to versions of a method for deparaffination of hydrocarbon material, using a similar catalyst.
EFFECT: use of the present invention enables to obtain a product with improved viscosity index at lower flow temperatures.
30 cl, 6 ex, 3 tbl, 11 dwg
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