Please use this identifier to cite or link to this item: http://nopr.niscpr.res.in/handle/123456789/29313
Title: Effect of mechanical activation on manganese extraction from manganese carbonate ore in acidic media
Authors: Yilmaz, Volkan Murat
Apaydin, Fatih
Keywords: Acidic leaching;Manganese carbonate ore;Manganese extraction;Mechanical activation
Issue Date: May-2014
Publisher: NISCAIR-CSIR, India
Abstract: A manganese carbonate ore has been mechanically activated at different milling times and the effect of mechanical activation on the ore structure is analyzed by X-ray diffraction, scanning electron microscopy and particle size analysis. The activation procedure leads to amorphisation and structural disordering of the ore structure. Sulfuric acid leaching of the non-activated and activated manganese carbonate ore has been studied at different temperatures, durations, and acid concentrations. The results show that dissolution of manganese increases from 69% to 100% in acidic leaching with 1 M H2SO4 at 70°C after 30 min of mechanical activation, due to amorphisation in structure and creating more surface area.
Page(s): 215-219
ISSN: 0975-0991 (Online); 0971-457X (Print)
Appears in Collections:IJCT Vol.21(3) [May 2014]

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