Overbased calcium sulfonate
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United States of America Patent
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Nov 26, 1996
Issued Date -
N/A
app pub date -
Oct 5, 1994
filing date -
Dec 31, 1990
priority date (Note) -
Expired
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Abstract
A method of preparing a calcium sulfonate having at least a TBN of 500 where the method comprises reacting CaO, Ca(OH).sub.2 and H.sub.2 O, and synthetic monoalkylbenzene sulfonate and synthetic dialkylbenzene sulfonate in certain molar ratios, respectively, for a sufficient length of time to produce the overbased calcium sulfonate.
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