C - Chemistry – Metallurgy – 10 – M
Patent
C - Chemistry, Metallurgy
10
M
253/86
C10M 169/04 (2006.01) C10G 65/16 (2006.01)
Patent
CA 1187072
ABSTRACT Process for Production of Oxidation-Resistant Hydrocarbon Oil Composition, and Oxidation-Resistant Composition made thereby 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 at least 60°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.
379906
Borden Ladner Gervais Llp
Exxon Research And Engineering Company
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