Process for producing low viscosity lubricating base oil having

Details Process for producing low viscosity lubricating base oil having Process for producing low viscosity lubricating base oil having

1993-09-30

1995-10-24

Myers, Helane

Mineral oils: processes and products

Chemical conversion of hydrocarbons

Plural serial stages of chemical conversion

208 27, 208 96, 208 97, C10G 6702

Patent

active

054607132

ABSTRACT:
A process for the production of a high viscosity index, low viscosity lubricating base oil having a kinematic viscosity of 3.0 to 7.5 mm.sup.2 /s at 100.degree. C., a viscosity index of 120 or more and a pour point of -10.degree. C. or less, while simultaneously producing a high quality fuel oil, which includes subjecting a mixture stock oil of (a) at least one of a heavy gas oil fraction and a vacuum gas oil fraction and (b) a slack wax to hydrocracking in the presence of an amorphous silica alumina catalyst, separating the cracked product into a fuel oil fraction and a lubricating oil fraction by atmospheric distillation, and subsequently subjecting the lubricating oil fraction to dewaxing, optionally applying at least one of solvent refining and hydrofinishing.

REFERENCES:
patent: 3790472 (1974-02-01), White
patent: 3794580 (1974-02-01), Ladeur
patent: 3962071 (1976-06-01), Itoh et al.
patent: 4347121 (1982-08-01), Mayer et al.
patent: 4361477 (1982-11-01), Miller
patent: 4747932 (1988-05-01), Miller
patent: 4853104 (1989-08-01), Degnan
patent: 5288395 (1994-02-01), Marler et al.
Chemical Technology of Petroleum, Gruse et al., 1960, p. 570.

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