Process for making lube oil basestocks

Mineral oils: processes and products – Chemical conversion of hydrocarbons – With preliminary treatment of feed

Reexamination Certificate

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Details

C208S018000, C208S027000, C208S057000, C208S058000, C208S071000, C208S072000, C208S088000, C208S089000, C208S095000, C208S097000

Reexamination Certificate

active

07597795

ABSTRACT:
A process for producing lube oil basestocks involving solvent extracting a waxy feed to produce at least a lube oil boiling range raffinate, hydrotreating the lube oil raffinate to produce a hydrotreated raffinate, and dewaxing the hydrotreated raffinate.

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U.S. Appl. No. 10/949,483, Co-pending Application.
U.S. Appl. No. 10/949,513, Co-pending Application.

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