Process for preparing basestocks having high VI using...

Details Process for preparing basestocks having high VI using... Process for preparing basestocks having high VI using...

2006-05-18

2008-09-30

Caldarola, Glenn (Department: 1797)

Mineral oils: processes and products

Products and compositions

Lubricating oils

C208S019000, C208S027000, C208S089000, C208S108000

Reexamination Certificate

active

07429318

ABSTRACT:
A process for preparing high VI lubricating oil basestocks comprising hydrotreating, hydrodewaxing and optionally hydrofinishing. The hydrotreated feedstock is hydrodewaxed using a dewaxing catalyst that has been selectively activated by oxygenate treatment. The hydrodewaxed product may then be hydrofinished.

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