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2 449 056

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IPC

C23F11/167(2006-01-01)

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Application

2011107352/02, 2011-02-25

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Start date

2011-02-25

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Actual filing date

2011-02-25

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Published

2012-04-27

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Inventor

Nizamov Il'Jas SaidovichPopovich Jan Evgen'EvichNizamov Il'Nar DamirovichKhodyrev Jurij PavlovichBatyeva Ehl'Vira SalikhovnaSinjashin Oleg Gerol'Dovich

(73)

Holder

Uchrezhdenie Rossijskoj Akademii Nauk Institut Organicheskoj Fizicheskoj Khimii Im. A.E. Arbuzova Kazanskogo Nauchnogo Tsentra Ran

ORGANIC PHOSPHOROSULPHURIC STEEL CORROSION INHIBITOR ON BASIS OF ALPHA-OLEFINS OF INDUSTRIAL FRACTION C, C Russian patent published in 2012 - IPC C23F11/167

Abstract RU 2449056 C1

FIELD: metallurgy.

SUBSTANCE: invention refers to corrosion protection of steel products. Inhibitor represents mixture of long-chain esters of phosphorus thioacids of common formula of alkyl-X-P(S)(OR)₂, where X=O, S; alkyl=C₁₆, C₁₈; R=isopropyl, isobutyl, isooctyl, and is obtained by heating of red phosphorus with sulphur and aliphatic alcohol during 10-12 h at temperature of 100-110°C, with further interaction of the obtained mixture of phosphorus thioacids with alpha-olefins of industrial fraction C₁₆, C₁₈ in presence of zinc chloride at 80°C during 4 hours and extraction of target product with known methods. Molar ratio of red phosphorus: sulphur: aliphatic alcohol: olefins fraction reagents is 1:2:2:1.

EFFECT: increasing steel corrosion inhibitor efficiency.

4 cl, 1 tbl, 3 ex

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RU 2 449 056 C1

Authors

Nizamov Il'Jas Saidovich

Popovich Jan Evgen'Evich

Nizamov Il'Nar Damirovich

Khodyrev Jurij Pavlovich

Batyeva Ehl'Vira Salikhovna

Sinjashin Oleg Gerol'Dovich

Dates

2012-04-27—Published

2011-02-25—Filed