Innovative technology for recycling the negative segments of alkaline batteries using recoverable solvent

Barashev, A. R.; Karelov, S. V.; Анисимова, О. С.; Mamyachenkov, S. V.

doi:10.1007/s11015-011-9440-4

Cited by 4 publications

(1 citation statement)

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“…In solutions of disodium, EDTA was obtained at much higher corrosion rates, even when the EDTA disodium was in lower concentration than the tetrasodium EDTA solution, in all conditions tested. The difference in fluid corrosiveness of both EDTA electrolytes could be explained by the difference of chelation power of EDTA on the Fe 2+ ions at different pH values (Barashev, Karelov, Anisimova & Manyachenkov, 2011). Conditional formation constant K f ' for EDTA solutions depends on pH value and are defined by the equation:…”

Section: Effect Of the Type Of Edta On The Corrosivity Of The Fluidsmentioning

confidence: 99%

The corrosion process of P-110 steel in stimulation fluids used in the oil industry

Calderón

Bonilla

Carreño

2014

CT&F Cienc. Tecnol. Futuro

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The use of chelating agents in the oil well stimulation processes has been proposed as an alternative to the acid treatment when the formations damage do not allow the usage of strong chemical attack. However, this procedure can arouse the corrosion of the steel used in the infrastructure of the oil production. In this study, the corrosion kinetics of the P-110 steel in ethylenediaminetetraacetic acid (EDTA)based fluids is assessed under different conditions of evaluation. Linear polarization was performed in different hydrodynamic regimes and at different temperatures, in order to evaluate the kinetic of steel corrosion. The working electrolyte solution comprises 10% disodium EDTA and 20% tetrasodium EDTA. The increase of temperature from 25 to 80°C in both electrolytes increments the corrosion rate of steel in at least one order of magnitude; particularly in EDTA-Na2 solutions. Corrosion rates of 0.29x10 1 and 1.67x10 2 mm.y -1 were measured at 25 and 80°C, respectively. The hydrodynamic regime plays an important role in the corrosion of steel only in the disodium solution, where corrosion rates were increased at higher rotation speeds of the electrode. The cathodic depolarization effect is more important in the EDTA-Na2 than in the EDTA-Na 4 solution, making it more corrosive.

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Section: Effect Of the Type Of Edta On The Corrosivity Of The Fluidsmentioning

confidence: 99%