Method of preparing overbased calcium sulfonates

Details Method of preparing overbased calcium sulfonates Method of preparing overbased calcium sulfonates

1990-11-01

1992-07-21

Hearn, Brian E.

Compositions

Electrolytes for electrical devices

252 18, 252 25, C10M13510

Patent

active

051320339

ABSTRACT:
Lubricating oils contain an overbased oil-soluble composition prepared by adding water to a heated reaction mixture containing an alkaline earth metal halide, an alkaline earth metal salt of an alkaryl sulfonate, a hydrocarbon diluent-solvent, a lower alkanol, and an alkali metal oxide, and thereafter passing carbon dioxide through the reaction mixture.

REFERENCES:
patent: 4879053 (1989-11-01), Matthews et al.
patent: 4954272 (1990-09-01), Jao et al.

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