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2 147 030

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IPC

(21) (22)

Application

99103434/04, 1999-03-01

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Start date

1999-03-01

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Actual filing date

1999-03-01

(45)

Published

2000-03-27

(72)

Inventor

Zadko I.I.Ermolaev M.V.Vipper A.B.Bazhenov V.P.Churzin A.N.Olejnik Zh.Ja.Moroshkin Ju.G.Popov V.N.Zolotov V.A.

(73)

Holder

Nauchno-Inzhenernyj Tsentr Neftjanoj Kompanii

ADDITION AGENTS "LUKOIL" TO MOTOR OILS FOR DIESEL INTERNAL COMBUSTION ENGINES, AND PREPARATION THEREOF Russian patent published in 2000 - IPC

Abstract RU 2147030 C1

FIELD: oil refining for production of motor oils for autotractors. SUBSTANCE: addition agents comprise, wt %; highly alkaline calcium sulfonate, 10-22; highly alkaline calcium phenate, 20-33; polyalkenyl succinimide, 17-30; zinc dialkyldithio phosphate, 15-30; mineral oil diluent, the balance. Polyalkenyl succinimide and dialkyl dithiophosphate in weight ratio which make it possible to attain nitrogen to zinc atomic ratio of not greater than 1, preferably 0.2-0.6. Addition agents comprise ash-free phenol antioxidant in amount of not higher then 10 wt %. Addition agents are prepared by successively adding diluent to oil at temperature of 40-75 C and stirring highly alkaline calcium sulfonate and highly alkaline calcium phenate, polyalkenyl succinimide and zinc dialkyl thiophosphate and optionally adding ash-free phenol antioxidant in amount of 10 wt %. EFFECT: improved service properties of motor oils. 4 cl, 1 ex, 3 tbl

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RU 2 147 030 C1

Authors

Zadko I.I.

Ermolaev M.V.

Vipper A.B.

Bazhenov V.P.

Churzin A.N.

Olejnik Zh.Ja.

Moroshkin Ju.G.

Popov V.N.

Zolotov V.A.

Dates

2000-03-27—Published

1999-03-01—Filed