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2 141 543

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IPC

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Application

98103515/02, 1998-03-11

(24)

Start date

1998-03-11

(22)

Actual filing date

1998-03-11

(45)

Published

1999-11-20

(72)

Inventor

Naumova L.V.Pavlova N.K.Tudrij G.A.Lebedev N.A.

(73)

Holder

Oao Institut Po Neftepromyslovoj Khimii"

INHIBITOR OF HYDROGEN-SULFIDE AND/OR CARBONIC ACID CORROSION Russian patent published in 1999 - IPC

Abstract RU 2141543 C1

FIELD: oil producing industry; applicable in protection of equipment from hydrogen-sulfide and/or carbonic acid corrosion. SUBSTANCE: inhibitor contains, wt.%: tall oil 20-60; mixture of bis-(alkylhexaoxyethylene) phosphate, 2-ethylenediaminomethylphenol and/or 2.6-di-(ethylenediaminomethyl) phenol 3-10; the balance, solvent. EFFECT: highly efficient in aggressive media with low solidification temperature. 1 tbl

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RU 2 141 543 C1

Authors

Naumova L.V.

Pavlova N.K.

Tudrij G.A.

Lebedev N.A.

Dates

1999-11-20—Published

1998-03-11—Filed

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