Process for the preparation of a light-stable lubricating oil

Details Process for the preparation of a light-stable lubricating oil Process for the preparation of a light-stable lubricating oil

C - Chemistry, Metallurgy

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G

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C10G 65/02 (2006.01) C10G 65/08 (2006.01)

Patent

CA 1117057

ABSTRACT PROCESS FOR THE PREPARATION OF A LIGHT-STABLE LUBRICATING OIL A process for the preparation of a light-stable lubricating oil by contacting a waxy mineral oil fraction in the presence of hydrogen with one or more supported catalysts containing one or more metals (and/or compounds thereof) of Group VI and/or Group VIII of the Periodic Table of Elements in three subsequent zones, the temperature in the first zone being between 350 and 450°C, the temperature in the second zone being between 310 and 350°C and the temperature in the third zone being between 200 and 325°C, the temperature in the second and the third zone being at least 20°C lower than that in the preceding zone.

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