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2 235 807

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Application

2003106895/02, 2003-03-12

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Start date

2003-03-12

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Actual filing date

2003-03-12

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Published

2004-09-10

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Inventor

Fakhrutdinov R.Z.Ermakov R.D.Fakhrutdinov B.R.Terent'Eva N.A.Dijarov I.N.Khvatova L.K.Bradel'Shchikova T.A.Varnavskaja O.A.Zakhvatov V.A.Khusnullin M.G.Lebedev N.A.Khlebnikov V.N.Vakhitov R.M.

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Holder

Otkrytoe Aktsionernoe Obshchestvo Institut Po Neftepromyslovoj Khimii"

METHOD OF PREPARING PETROLEUM PRODUCT/NITRIC ACID/AIR INTERACTION PRODUCT MANIFESTING ANTICORROSION PROPERTIES, AND CORROSION INHIBITOR COMPOSITION Russian patent published in 2004 - IPC

Abstract RU 2235807 C1

FIELD: corrosion protection.

SUBSTANCE: invention relates to protection of metals against corrosion in hydrogen sulfide- and oxygen-containing aqueous media. Method comprises interaction of petroleum product, in particular C13-C18-paraffins or C20-C26-α-olefins, or petrolatum, with nitric acid and air by heating petroleum product to 110-150оС and subsequent addition of nitric acid with air in bubbling mode. Corrosion inhibitor contains 5-20% of product of interaction of fatty amine, ethylene oxide, and phosphorus-containing compound or its mixture with oxyethylated amine; 5-20% of nonionic surfactant; 5-50% of interaction product of present invention; and solvent (the rest).

EFFECT: expanded resource of raw materials.

3 cl, 3 tbl, 31 ex

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RU 2 235 807 C1

Authors

Fakhrutdinov R.Z.

Ermakov R.D.

Fakhrutdinov B.R.

Terent'Eva N.A.

Dijarov I.N.

Khvatova L.K.

Bradel'Shchikova T.A.

Varnavskaja O.A.

Zakhvatov V.A.

Khusnullin M.G.

Lebedev N.A.

Khlebnikov V.N.

Vakhitov R.M.

Dates

2004-09-10—Published

2003-03-12—Filed

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