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2 124 578

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IPC

(21) (22)

Application

96105168/02, 1996-03-15

(22)

Actual filing date

1996-03-15

(45)

Published

1999-01-10

(72)

Inventor

Kravtsov E.E.Eliseev I.S.Starkova N.N.Kaliev S.G.Revina A.E.Sasina M.I.Kondratenko T.S.

(73)

Holder

Kravtsov Evgenij Evgen'Evich

INHIBITOR OF CORROSION OF METALS IN SULFURIC AND HYDROCHLORIC ACID Russian patent published in 1999 - IPC

Abstract RU 2124578 C1

FIELD: protection of metals from acid corrosion and etching of metals in acids, and acid cleanings of equipment. SUBSTANCE: corrosion inhibitor of metals in sulfuric and hydrochloric acids comprises (wt %): 8.6-10.5 4-bromobenzal-2'-amino-4'-nitrophenol; 22.4-31.6 N-methyl-2-pyridinaldoxime iodide; 17.2-21.0 4- amino-3-methyl-thio-6-tert-butyl-1,2,4-triazinone-5 and 36.8-51.7 urotropin. EFFECT: greater degree of protection from corrosion of steel, titanium and indium and reduced hydrogen absorption of steel. 2 tbl

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RU 2 124 578 C1

Authors

Kravtsov E.E.

Eliseev I.S.

Starkova N.N.

Kaliev S.G.

Revina A.E.

Sasina M.I.

Kondratenko T.S.

Dates

1999-01-10—Published

1996-03-15—Filed