Process for the preparation of a lubricating base oil

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United States of America Patent

PATENT NO 4906350
SERIAL NO

07258416

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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A process is disclosed for the preparation of a lubricating base oil with a high viscosity index and a low pour point by catalytic dewaxing, which process comprises contacting at dewaxing conditions a feedstock containing at least part of the hydrocrackate of a wax-containing mineral oil fraction, which feedstock has a kinematic viscosity at 100.degree. C. of, at most, 10 mm.sup.2 /s, with a dewaxing catalyst. The invention further provides a lubricating mineral base oil comprising hydrocarbons with a boiling point of at least 250.degree. C., and having a viscosity index of at least 125 and a pour point of at most -25.degree. C.

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Patent Owner(s)

Patent OwnerAddress
SHELL OIL COMPANY A CORP OF DEDE

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Dutot, Gilbert Grand Couronne, FR 1 41
Lucien, Jacques Grand Couronne, FR 3 91

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