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2 147 626

(13)

(51)

IPC

(21) (22)

Application

98114404/02, 1998-07-21

(24)

Start date

1998-07-21

(22)

Actual filing date

1998-07-21

(45)

Published

2000-04-20

(72)

Inventor

Sel'Skij B.E.Nikol'Skaja M.P.Shitov G.P.Jasman Ja.B.

(73)

Holder

Sel'Skij Boris EvseevichNikol'Skaja Margarita PavlovnaShitov Gennadij PetrovichJasman Jakov Borisovich

ACID CORROSION INHIBITOR Russian patent published in 2000 - IPC

Abstract RU 2147626 C1

FIELD: protection of metals against acid corrosion with use of chemical reagents. SUBSTANCE: invention can be recommended for employment in petroleum and petrochemical industries for prevention of corrosion of steel. Composition of inhibitor includes product of condensation of primary or secondary amines, acetophenon and formaldehyde in molar proportion 1:1-2:1.2-2.4 to reduce cost of inhibitor and to make it more efficient in acid environment. EFFECT: reduced cost and increased efficiency of proposed inhibitor. 1 tbl

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RU 2 147 626 C1

Authors

Sel'Skij B.E.

Nikol'Skaja M.P.

Shitov G.P.

Jasman Ja.B.

Dates

2000-04-20—Published

1998-07-21—Filed