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2 198 852

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C1

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IPC

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Application

2001116485/12, 2001-06-13

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Start date

2001-06-13

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Actual filing date

2001-06-13

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Published

2003-02-20

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Inventor

Druzhinin V.N.Zhigalenko V.A.Kotikov I.N.Rudnev V.V.Smirnov V.A.

(73)

Holder

Otkrytoe Aktsionernoe Obshchestvo Metallurgicheskij Kombinat"

COMPOSITION PREVENTING CARBONATE, SULFATE, AND IRON OXIDE DEPOSITS Russian patent published in 2003 - IPC

Abstract RU 2198852 C1

FIELD: anti-deposit reagents. SUBSTANCE: composition is intended for preventing and destroying carbonate, sulfate, and iron oxide deposits on heat- and masstransfer surfaces and may be used in water-supply, cooling-system, wet gastreatment, hydrotransport, and heat-supply circuits. Composition contains, wt %: oxyethylidenediphosphonic acid 10-45, sodium lignosulfonate 5-40, sodium alkylarylsulfonate 0.1-4.0, urea 1.0-5.0, water - the balance. EFFECT: enhanced heat- and mass-transfer efficiency, inhibited corrosion, and increased stability of composition. 2 tbl

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RU 2 198 852 C1

Authors

Druzhinin V.N.

Zhigalenko V.A.

Kotikov I.N.

Rudnev V.V.

Smirnov V.A.

Dates

2003-02-20—Published

2001-06-13—Filed

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