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A Decrease in Corrosion Loss of Steel Wares when Removing Carbonate Scales

https://doi.org/10.18412/1816-0395-2015-7-48-50

Abstract

Adsorption of EDTA on calcite depending on the EDTA concentration and pH of the solution is investigated. It is established that adsorption enhances when decreasing pH of the solution being rather efficiency in neutral media as well. The adsorption efficiency is weakly acidic media makes it possible to solve a problem of corrosion loss of steel equipment due to lowering the concentration of mineral acid when removing carbonate scales.

About the Authors

I.V. Artamonova
Moscow State University of Mechanical Engineering (MAMI)
Russian Federation
Cand. Sci. (Chem.), Head of Department


E.B. Godunov
Moscow State University of Mechanical Engineering (MAMI)
Russian Federation
Senior Teacher


S.M. Kramer
Moscow State University of Mechanical Engineering (MAMI)
Russian Federation
Cand. Sci. (Chem.), Dean of Faculty


References

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4. Dolgaleva I.V., Gorichev I.G., Izotov A.D., Stepanov V.M. Modeling of the Effect of pH on the Calcite Dissolution Kinetics// Theoretical Foundations of Chemical Engineering. 2005. V. 39. № 6. P.614-621.

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6. Noren K., Loring J.S., Bargar J.R., Persson P. Adsorption mechanisms of EDTA at the water-iron oxide interface: implications for dissolution // J. Phys. Chem. 2009. V. 113. №18. P.7762-7771.


Review

For citations:


Artamonova I., Godunov E., Kramer S. A Decrease in Corrosion Loss of Steel Wares when Removing Carbonate Scales. Ecology and Industry of Russia. 2015;19(7):48-50. (In Russ.) https://doi.org/10.18412/1816-0395-2015-7-48-50

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ISSN 1816-0395 (Print)
ISSN 2413-6042 (Online)