Редколлегия Физикохимия Поверхности и Защита Материалов - Corrosion Inhibitors of the SNPKh Brand. 2. The P,N-Containing Corrosion Inhibitor for Protection of

Corrosion Inhibitors of the SNPKh Brand.
2. The P,N-Containing Corrosion Inhibitor for Protection of Oil-Field Equipment

O. V. Ugryumov^a, O. A. Varnavskaya^a, V. N. Khlebnikov^a, V. A. Ivanov^a, S. I. Vasyukov^a, G. V. Romanov^a, Ya. V. Ivshin^b, R. A. Kaidrikov^b, Kh. E. Kharlampidi^b, and F. Sh. Shakirov^c

^aOAO Research Institute of Oil-Field Chemistry (NIIneftepromkhim), ul. N. Ershova 29, Kazan, 420045 Russia

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^bKazan State Technological University, ul. Karla Marksa 68, Kazan, 420015 Tatarstan, Russia

Abstract — Series of functionalized pyridinium alkyl[poly(oxyethylene)] phosphites, isoquinolinium alkyl[poly(oxyethylene)] phosphites, pyridinium aryl[poly(oxyethylene)] phosphites, and isoquinolinium aryl[poly(oxyethylene)] phosphites were obtained and their properties were studied systematically. Some of them were found to be effective corrosion inhibitors in aqueous CO₂- and H₂S-containing media. Isoquinolinium dodecyl- and dodecylphenyl[dodeca(oxyethylene)] phosphites proved to be the best inhibitors. The iso-quinolinium aryl[poly(oxyethylene)] phosphites obtained were used to create a new corrosion inhibitor.