Document Type and Number:
Japanese Patent JPH0258313
Kind Code:
B2
Abstract:
An oxidation-resistant hydrocarbon oil composition is made by catalytically hydrogen-refining under relatively severe conditions a hydrocarbon oil basestock boiling in the lube oil boiling range and separately catalytically hydrogen-refining under relatively mild conditions a hydrocarbon fraction boiling in the lube oil range and having an aniline point exceeding 60 DEG C. and a sulfur content of at least 2.0 wt %. The resulting severely-refined basestock has a sulfur content not greater than 0.10 wt % and the resulting mildly-refined fraction has a sulfur content of at least 1.0 wt %, and the desired oxidation resistant composition is a blend comprising 85 to 99.9 wt % of the former and 15 to 0.1 wt % of the latter.
Inventors:
PIEERU DOMINIIKU MARAN
Application Number:
JP9370081A
Publication Date:
December 07, 1990
Filing Date:
June 17, 1981
Export Citation:
Assignee:
EXXON RESEARCH ENGINEERING CO
International Classes:
C10G45/02; C10G50/02; C10G65/16; C10G71/00; C10M169/04
Next Patent: JPH0258314