Application of corrosion inhibitors for phosphonic acid based capital cooling system

Authors

  • N. P. Nechitaylo Department of water-supply, water- diversion and hydraulics, State higher educational establishment the "Pridneprovskaya state academy of building and architecture", street of Chernyshevskogo, 24-а, 49600, Dnepropetrovsk, Ukraine, Ukraine
  • E. N. Kosyuk Department of water-supply, water- diversion and hydraulics, State higher educational establishment the "Pridneprovskaya state academy of building and architecture", street of Chernyshevskogo, 24-а, 49600, Dnepropetrovsk, Ukraine, Ukraine

Keywords:

corrosion, salts, circulating water system, phosphonic acids.

Abstract

Purpose. Receiving  of  regularities  for  changing  of  depth  indicator  of  corrosion  degree  and  protection  level  from concentrations  of  reagent  compositions  administered  based  on  phosphonic  acids. Methods.The  corrosion  rate  was  determined  by gravimetric method, in accordance with GOST 9.502-82 with natural aeration, temperature was 20º C, speed of the fluid of 1.2 m / s on  specimens  of  steel  S1010  in  form  of  plates  dimensions  10х20х1  mm. Results.  Using  a  mixture  of  phosphonic  acids  more efficiently than  its  individual components.The mixture РBTС with HEDP or NTF  there is a significant  increase of the protection ability of the reagent. This can be explained by the phenomenon of synergism. Scientific novelty. Based on conducted researches was developed some compositions of environmentally safe of compositions of corrosion inhibitor. Practical significance. Were selected optimal compositions and concentrations of corrosion inhibitors based on phosphonicacids.

Author Biographies

N. P. Nechitaylo, Department of water-supply, water- diversion and hydraulics, State higher educational establishment the "Pridneprovskaya state academy of building and architecture", street of Chernyshevskogo, 24-а, 49600, Dnepropetrovsk, Ukraine

Ph. D., Assos.prof.

E. N. Kosyuk, Department of water-supply, water- diversion and hydraulics, State higher educational establishment the "Pridneprovskaya state academy of building and architecture", street of Chernyshevskogo, 24-а, 49600, Dnepropetrovsk, Ukraine

аспирант

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Статья рекомендована к публикации д-ром техн. наук, В.И. Большаковым и д-ром техн. наук, Д.В. Лаухиным (Украина)

Published

2016-03-22

Issue

Section

Proceedings in memory of Starodubov