Process for the preparation of lubricating oil

Details Process for the preparation of lubricating oil Process for the preparation of lubricating oil

C - Chemistry, Metallurgy

10

G

196/54

C10G 45/00 (2006.01)

Patent

CA 1088447

A B S T R A C T A process for the preparation of a lubricating oil with a low pour point, which comprises contacting in a first zone a substantially asphaltene-free waxy mineral oil fraction with a supported catalyst containing one or more metals (and/or compounds thereof) of Group VI and/or Group VIII of the Periodic Table of Elements, in the presence of hydrogen at a temperature of from 390-450°C, contacting in a second zone at least part of the liquid effluent of the first zone in the composition in which it becomes available, with an acidic sup- ported catalyst containing one or more metals (and/or compounds thereof) of Group VI and one or more non-noble metals (and/or compounds thereof) of Group VIII of the Periodic Table of Elements, in the presence of hydrogen at a temperature between 350 and 390°C, and optionally dewaxing all or part of the effluent of the said second zone.

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