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Application

2002125949/04, 2002-10-01

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Start date

2002-10-01

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Actual filing date

2002-10-01

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Published

2003-10-27

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Inventor

Chizhevskij A.A.Djurik N.M.Kotov S.A.Smirnova O.V.Krylova G.I.Kalinina L.N.Ustalov A.V.Ural'Skij K.V.Gorlov E.G.Alekhina T.A.Dubinina Ljubov' Vasil'Evna

(73)

Holder

Chizhevskij Aleksej Anatol'EvichDjurik Nikolaj MikhajlovichKotov Sergej Anatol'EvichSmirnova Ol'Ga Vasil'EvnaKrylova Galina IgorevnaKalinina Ljubov' NikolaevnaUstalov Anatolij Vasil'EvichUral'Skij Kirill ValentinovichGorlov Evgenij Grigor'EvichAlekhina Tamara AleksandrovnaDubinina Ljubov' Vasil'Evna

LUBRICATION OIL ADDITIVE PREPARATION METHOD Russian patent published in 2003 - IPC

Abstract RU 2215022 C1

FIELD: lubricants. SUBSTANCE: lubrication oil additive is prepared from C8-C18-alkylphenols by bringing in interaction reactants with at 150-190 C in mixing apparatus at stirrer speed (10-16)•103 rpm, wherein alkylphenols and calcium oxide or hydroxide are introduced axially and sulfur and ethylene glycol at an angle 18-36 deg in the first step. In the second step, mineral oil is introduced axially and ethylene glycol and additional calcium oxide or hydroxide at an angle 18-36 deg, after which carbon dioxide is fed axially. EFFECT: increased alkali number by 10-15% improving thereby detergent and antioxidant properties of additive. 2 ex

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RU 2 215 022 C1

Authors

Chizhevskij A.A.

Djurik N.M.

Kotov S.A.

Smirnova O.V.

Krylova G.I.

Kalinina L.N.

Ustalov A.V.

Ural'Skij K.V.

Gorlov E.G.

Alekhina T.A.

Dubinina Ljubov' Vasil'Evna

Dates

2003-10-27—Published

2002-10-01—Filed

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