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2 147 625

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IPC

(21) (22)

Application

98113979/02, 1998-07-24

(24)

Start date

1998-07-24

(22)

Actual filing date

1998-07-24

(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 2147625 C1

FIELD: protection of metals against acid corrosion with use of chemical reagents. SUBSTANCE: invention can find use in petroleum and petrochemical industries. Composition of proposed inhibitor includes product of condensation of primary or secondary amines, acetophenon and formaldehyde in molar proportion 1: 1-2: 1.2-2.4 to make inhibitor cheaper and to enhance its efficiency in acid environment. Urotropine in the amount of 10-90 per cent by mass is added into prepared composition. EFFECT: cheapened inhibitor with enhanced efficiency in acid environment. 1 tbl

Similar patents RU2147625C1

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RU 2 147 625 C1

Authors

Sel'Skij B.E.

Nikol'Skaja M.P.

Shitov G.P.

Jasman Ja.B.

Dates

2000-04-20—Published

1998-07-24—Filed