Exxon Research and Engineering Company

Thomas J Ford

Ian A Cody

William John Murphy

Sandra J Alward

David N Zinkie

Dee Anne Brandes

Gilbert V Chambers

A process for producing a lubricating oil basestock having at least 90 wt. % saturates and a VI of at least 105 by solvent extracting a feedstock to produce a raffinate, solvent dewaxing the raffinate, selectively hydroconverting the solvent dewaxed raffinate in a two step hydroconversion zone followed by a hydrofinishing zone and a dewaxing zone.

Hydroconversion process for making lubicating oil basestocks

It has been discovered that waxy feeds can be upgraded using a catalyst made by combining powdered dewaxing catalyst with powdered isomerization catalyst said mixture of powdered catalysts being formed into a discrete particle.

Method for upgrading waxy feeds using a catalyst comprising mixed

An aromatic oil having an aniline point less than 120.degree. F., a mutagenicity index based on The Modified Ames Test of less than 2.0, a benzene, naphthalene and methyl substituted benzenes and naphthalenes individual component concentrations less than 100 wppm, and a clay gel aromatics fraction content of at least 50 weight % based on aromatic oil, said aromatics fraction characterized in that it has a naphthene-benzenes and dinaphthenebenzenes content of at least 50 volume % based on aromatics fraction. The invention also relates to a process for preparing the aromatic oil which comprises the steps of selective solvent extraction, selective distillation and two-stage hydrotreating with removal of hydrogen sulfide and/or ammonia. The aromatic oils are useful in agricultural formulations due to their low environmental impacts.

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Baton Rouge, LA, United States of America

Thomas J Ford