High Temperature Application of Oil Of Vitriol for Hydrometallurgical Extraction of Manganese

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Senior Assistant Professor, Department of Chemical Engineering, MVGR College of Engineering, Vizianagaram, Andhra Pradesh, India.
Periodicity:November - January'2017
DOI : https://doi.org/10.26634/jfet.12.2.10360

Abstract

The current study assesses the prospect of selective leaching of Manganese (Mn) from complex, in a high temperature sulphuric acid medium. The factors affecting the sulphuric acid leaching of the manganese complex in presence of various parameters were investigated. The three variables studied were temperature of leaching medium, leaching o o time, and concentration of sulphuric acid. Experiments were carried out at temperature ranging from 40 C to 110 C, time from 30 minutes to 150 minutes and sulphuric acid concentration from 2% to 6%. The feed ratio is 1:3 (5g MnSO + 4 15g impurities). The feed prepared is in close resemblance to pyrolusite ore. Manganese leaching amount was measured by using the standard manganese concentration curve and estimated by titration method. Effects of various acid concentrations on leaching efficiency were studied. The optimum conditions established for maximum metal O extraction are: 100 C temperature, 120 minutes time, and 5% concentrated sulphuric acid. Under these conditions, recovery of Mn was 98%, and the leached residues were analyzed. The present process may find application of separation of manganese from iron and aluminium at high temperature during various hydrometallurgical treatment of manganese based ores.

Keywords

Hydrometallurgical Treatment, Leaching, Manganese, Sulphuric Acid

How to Cite this Article?

Sastry, S.V.A.R., (2017). High Temperature Application of Oil Of Vitriol for Hydrometallurgical Extraction of Manganese. i-manager’s Journal on Future Engineering and Technology, 12(2), 1-8. https://doi.org/10.26634/jfet.12.2.10360

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