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Vol 12, Issue 1, 2018
Pages: 170 - 176
Research article
Metallic materials
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Published: 04.09.2018. Research article Metallic materials

RECOVERY OF MANGANESE FROM STEEL SLAG AND DUST BY DIFFERENT TECHNOLOGIES

By
Aida Imamović ,
Aida Imamović
Contact Aida Imamović

University of Zenica, Faculty of Metallurgy and Technology Travnička cesta 1, Zenica, University of Zenica , Zenica , Bosnia and Herzegovina

Raza Sunulahpašić ,
Raza Sunulahpašić

Faculty of Metallurgy and Technology Travnička cesta 1, Zenica, University of Zenica , Zenica , Bosnia and Herzegovina

Amna Hodžić
Amna Hodžić

Faculty of Metallurgy and Technology Travnička cesta 1, Zenica, University of Zenica , Zenica , Bosnia and Herzegovina

Abstract

This paper describes a few examples of the recovery of manganese from steel slag and dust by using different technologies based on acid leaching.
Reductive leaching in sulfuric acid (H2SO4) for recovery of manganese from electric arc furnace dust (EAFD) was represented. Recovery of manganese and iron was increased with increasing in the sulfuric acid concentration. By using different reductantcs such as oxalic acid and hydrogen peroxide were revealed a higher manganese recovery than the other reductants. The results were showed that leaching of manganese was accomplished at 0.31 mol/L oxalic acid concentration, 2 mol/L H2SO4, a liquid/solid ratio of 30/1 at 70 °C and with 90 min leaching time.

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