Process for preparing an overbased salt of a sulfurized alkyl-substituted hydroxyaromatic composition

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United States of America Patent

PATENT NO 9062271
APP PUB NO 20150119304A1
SERIAL NO

14067121

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Abstract

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Disclosed herein is an overbased salt of a sulfurized alkyl-substituted hydroxyaromatic composition, which is prepared by the process comprising (a) providing an overbased salt of a sulfurized alkyl-substituted hydroxyaromatic composition having a total base number (TBN) greater than about 250; and (b) sparging the overbased salt of a sulfurized alkyl-substituted hydroxyaromatic composition with air at a temperature ranging from about 190° C. to about 250° C.

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Patent Owner(s)

Patent OwnerAddress
CHEVRON ORONITE COMPANY LLCP O BOX 6006 SAN RAMON CA 94583-0806

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Jukes, Ronald T F Rotterdam, NL 1 1
Spala, Eugene E Fairfield, US 8 28

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