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

E-mail: neftpx@mi.ru, Olegugr@yandex.ru

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

^c TatNIPIneft’, Bugulma, Russia

Received September 6, 2005

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. Isoquinolin-
ium 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.

PACS numbers: 81.65.Kn; 82.45.Bb; 89.60.Ec

DOI: 10.1134/S0033173207010134

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