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IPC

C23F11/04(2006-01-01)

(21) (22)

Application

2004101172/02, 2004-01-13

(24)

Start date

2004-01-13

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Actual filing date

2004-01-13

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Published

2007-01-10

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Inventor

Kravtsov Evgenij Evgen'EvichSvetasheva Diana RafailevnaSukhaeva Ehl'Vira RinatovnaStarkova Natal'Ja NikolaevnaKaliev Sultan GarifovichKondratenko Taisija Sergeevna

(73)

Holder

Astrakhanskij Gosudarstvennyj Tekhnicheskij Universitet

INHIBITOR OF METAL CORROSION IN HYDROCHLORIC AND SULFURIC ACIDS Russian patent published in 2007 - IPC C23F11/04 

Abstract RU 2291224 C2

FIELD: anti-corrosive agents.

SUBSTANCE: invention relates to protection of metals against acid corrosion. Proposed inhibitor comprises the following components, wt.-%: acetylacetone-p-phenylenediamine, 17.2-19.02; cetyltrimethyl ammonium iodide, 39.9-44.8, and polyethylene polyamine, 37.9-46.03. Invention provides enhancing the protection degree of steel, nickel and cobalt against corrosion in hydrochloric and sulfuric acids, decreasing hydrogen absorption by steel.

EFFECT: improved anti-corrosive properties of inhibitor.

2 tbl, 2 ex

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RU 2 291 224 C2

Authors

Kravtsov Evgenij Evgen'Evich

Svetasheva Diana Rafailevna

Sukhaeva Ehl'Vira Rinatovna

Starkova Natal'Ja Nikolaevna

Kaliev Sultan Garifovich

Kondratenko Taisija Sergeevna

Dates

2007-01-10—Published

2004-01-13—Filed

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