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2 248 411

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2004105826/02, 2004-02-27

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Start date

2004-02-27

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Actual filing date

2004-02-27

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Published

2005-03-20

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Otkrytoe Aktsionernoe Obshchestvo

CORROSION INHIBITOR IN HYDROGEN SULFIDE-CONTAINING MEDIA Russian patent published in 2005 - IPC

Abstract RU 2248411 C1

FIELD: corrosion protection.

SUBSTANCE: invention provides inhibitor for protecting oil-field equipment against hydrogen sulfide, carbon dioxide, and oxygen corrosion, which comprises, in solvent, 1-10% of reaction product of monoethylated alkylphenol with phosphorus-containing compound and amine, 1-20% of nonionic surfactant, 5-40% of organic acid/amine reaction product, and 2-15% of interaction product of a mixture of primary and secondary aliphatic amines with low-grade dimethyl phosphite.

EFFECT: improved protection against corrosion, reduced preparation expenses, and extended resource of raw materials.

4 tbl, 11 ex

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RU 2 248 411 C1

Authors

Dates

2005-03-20—Published

2004-02-27—Filed

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