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2 247 795

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Application

2000117895/02, 2000-07-05

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Start date

2000-07-05

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Actual filing date

2000-07-05

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Published

2005-03-10

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Inventor

Kravtsov E.E.Golubev S.V.Koplichenko A.S.Starkova N.N.Beskhmel'Nitsyna T.S.Zajnutdinova N.A.Kondratenko T.S.

(73)

Holder

Astrakhanskij Gosudarstvennyj Tekhnicheskij Universitet

METAL CORROSION INHIBITOR IN HYDROCHLORIC AND SULFURIC ACID Russian patent published in 2005 - IPC

Abstract RU 2247795 C2

FIELD: corrosion metal protection in acid using an inhibitor.

SUBSTANCE: claimed inhibitor contains condensation product of amine with aldehyde, such as salicylal-3-bromo-4-aminoquinoline (27.8-34.6 mass %), as well as 2,4-dinitroaniline-5-iodo-2-thiophensulfonic acid (32.8-41.3 mass %), and urotropine (24.1-39.3 mass %). Inhibitor of present invention is useful in etching of steel, titanium and aluminum, as well as in equipment acidic purification.

EFFECT: effective retardation of steel, titanium and aluminum corrosion in hydrochloric and sulfuric acid, sufficient suppression of steel hydrogenation.

2 tbl

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RU 2 247 795 C2

Authors

Kravtsov E.E.

Golubev S.V.

Koplichenko A.S.

Starkova N.N.

Beskhmel'Nitsyna T.S.

Zajnutdinova N.A.

Kondratenko T.S.

Dates

2005-03-10—Published

2000-07-05—Filed

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