Process for the preparation of lubricating oils

Details Process for the preparation of lubricating oils Process for the preparation of lubricating oils

C - Chemistry, Metallurgy

10

M

253/127, 196/53

C10M 101/02 (2006.01)

Patent

CA 1094539

ABSTRACT OF THE DISCLOSURE A process for the preparation of lubricating oils with a viscosity index lower than 90, characterized in that two or more components prepared from waxy crude mineral oils are blended, which components have been selected from the following three groups: A. aromatic extracts from deasphalted residual lubricating oil fractions, which extracts have been subjected to a catalytic hydrogen treatment, B. aromatic extracts from distillate lubricating oil fractions, which extracts have been subjected to a catalytic hydrogen treatment, C. dewaxed gas oils having a 5% boiling point of at least 275°C, it being understood that the lubricating oils are prepared, by blending one or more components selected from group C with one or more components selected from group A and/or with one or more components selected from group B.

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