PROCESS FOR PREPARING DETERGENT-DISPERSIVE ADDITIVE TO MOTOR OILS Russian patent published in 1994 - IPC

Abstract RU 2016054 C1

FIELD: machine building. SUBSTANCE: the detergent-dispersing additive is prepared by sulfonating petroleum or synthetic oil followed by separation of an oil solution of sulfonic acids from a sludge and treatment of the solution of sulfonic acids or ammonium sulfonate with a colloidal dispersion of calcium carbonate in a hydrocarbon solvent stabilized with calcium alkyl salicylate having a total alkalinity of 140-320 mg KOH/g for 0.016-1.0 hr under stirring and at a temperature of 90-160 C in the presence of a hydrocarbon solvent. The colloidal dispersion of calcium carbonate is added preferably in an amount of 1.9-3.6 weight parts per 1 weight part of the oil solution of sulfonic acids or ammonium sulfonate. EFFECT: improved properties of the detergent-dispersing addition. 3 cl, 1 tbl

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RU 2 016 054 C1

Authors

Zerzeva I.M.

Blokh A.R.

Aldokhina T.F.

Dates

1994-07-15—Published

1992-04-27—Filed