Temperature Effect on the Austenitic Stainless Steel UNS N08031 Used in the Wet Method Phosphoric Acid Production

Autor: Escrivá Cerdán, Clara, Blasco Tamarit, María Encarnación, García García, Dionisio Miguel, García Antón, José, Guenbour, Abdellah
Jazyk: angličtina
Rok vydání: 2013
Předmět:
Zdroj: RiuNet. Repositorio Institucional de la Universitat Politécnica de Valéncia
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Chemical Engineering Transactions, Vol 32 (2013)
Popis: The influence of temperature (between 20 and 80 degrees C) on the electrochemical behaviour of UNS N08031 (Alloy 31) was evaluated in a contaminated phosphoric acid solution, which simulates the typical concentrations used in the industrial wet process (40 wt.% H3PO4, 2 wt.% H2SO4 and 0.42 wt.% KCl). Alloy 31 electrochemical behaviour was studied by means of polarisation curves and electrochemical impedance spectroscopy. Results demonstrated that temperature decreases the corrosion resistance of Alloy 31.
Databáze: OpenAIRE