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                                             Upgrading of Magnesite from Dolomite Ore Using Flotation Process
                                                                                PhyoWint Thu#1, Myo Min Htun#2
#2Department of Metallurgical Engineering and Materials Science, West Yangon Technological University, Hlaing Thar Yar, Yangon, Myanmar
                                                                                            [email protected]
ABSTRACT
This study was carried out to develop the flotation procedure for dolomite ore from Ywar Ngan Region, Southern Part of Shan State in Myanmar. In this investigation, about 14% purity of magnesium in dolomite ore was used. The representative sample was screened to determine its size distribution. A comprehensive mineralogical and analytical approach including wet analysis, Atomic Absorption Spectrophotometer (AAS) and X-Ray Fluorescence spectrophotometer (XRF) was used for the present study. During the flotation tests, the effects of particle size, pulp density and collector dosage were examined. In the flotation tests, 69% of magnesium recovery was obtained by using 200 g/t Sodium isobutyl xanthate (SIBX) collector within pulp density 30% solid at size fraction (P80=75μm) . Final concentration of the magnesium purity content is 22% that was obtained after upgrading of flotation process.
Keywords - Collector, Dolomite ore, Flotation, Particle size, Pulp density