Oxidation of Manganous and Chloride Ions on Mixed Metal Oxide Anodes

Author

A. Luyima
Michael S. Moats, Missouri University of Science and TechnologyFollow

Abstract

In the present work, the oxidation of manganous and chloride ions on a mixed metal oxide (MMO) anode from a 40oC electrolyte containing 160 g/L sulfuric acid (H₂SO₄) with various concentrations of Mn²⁺ and Cl- was studied using cyclic voltammetry. These results indicated that Mn²⁺ concentration does not affect Cl₂ evolution on a non-MnO₂ coated MMO anode. However once MnO₂ deposits on the MMO anode, Cl₂ evolution is inhibited. The effects of manganous concentration and chloride concentration on the amount of MnO₂ deposited in one hour were also evaluated. Clconcentration did not affect the amount of MnO₂ generated. Increasing Mn²⁺ concentration resulted in an increase in the amount of MnO₂ deposited.

Recommended Citation

A. Luyima and M. S. Moats, "Oxidation of Manganous and Chloride Ions on Mixed Metal Oxide Anodes," Proceedings of the 28th International Mineral Processing Congress (2016, Quebec City, Canada), Canadian Institute of Mining, Metallurgy and Petroleum, Sep 2016.

Meeting Name

28th International Mineral Processing Congress, IMPC 2016 (2016: Sep. 11-16, Quebec City, Canada)

Department(s)

Materials Science and Engineering

Keywords and Phrases

Chloride; Coated titanium anodes; DSA; IrO2; Manganese; Ta2O5

International Standard Book Number (ISBN)

978-192687229-2

Document Type

Article - Conference proceedings

Document Version

Citation

File Type

text

Language(s)

English

Rights

© 2016 TAPPI Press, All rights reserved.

Publication Date

01 Sep 2016