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2 140 464

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IPC

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Application

99104275/02, 1999-03-11

(24)

Start date

1999-03-11

(22)

Actual filing date

1999-03-11

(45)

Published

1999-10-27

(72)

Inventor

Panteleeva A.R.Mukhametzjanova Eh.Kh.Shermergorn M.I.Raimova L.S.Kogut N.A.

(73)

Holder

Aktsionernoe Obshchestvo

CORROSION PROTECTION COMPOSITION FOR OIL FIELD EQUIPMENT Russian patent published in 1999 - IPC

Abstract RU 2140464 C1

FIELD: corrosion protection. SUBSTANCE: invention, in particular, relates to corrosion protection of metals in hydrogen sulfide-containing media. Composition contains fatty acid (4-20%), surfactant (9-25%), and nitrogen-containing component: N-alkyl-2-methyl-5-ethylpyridinium bromide (3-15%) in solution or product of interaction of mixture of primary and secondary amines with industrial-grade dimethyl phosphite in hydrocarbon solvent. EFFECT: increased degree of protection and reduced congellation point. 1 tbl

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RU 2 140 464 C1

Authors

Panteleeva A.R.

Mukhametzjanova Eh.Kh.

Shermergorn M.I.

Raimova L.S.

Kogut N.A.

Dates

1999-10-27—Published

1999-03-11—Filed

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