| abstract |
The invention relates to a process to prepare an oil blend comprising: (i) de-asphalting a mineral -derived vacuum residue to obtain a de-asphalted oil, (ii) optionally extracting from the de-asphalted oil an aromatic extract by solvent extraction process; and (iii) blending the de-asphalted oil obtained in (i) or the aromatic extract obtained in (ii) with a paraffin base oil. The invention further relates to the oil blends obtainable by the process, and their uses. |