Question: ZnS - Ore contains: 7 7 . 7 6 % ZnS; 8 . 8 8 % MnCO 3 ; 2 . 3 0 % H

ZnS-Ore contains: 77.76% ZnS; 8.88% MnCO3; 2.30% H2O; 11.06% SiO2. Calculate the Zn- content (wt.%) and Mn-content (wt%) before and after dead roasting (calculation can be made for 100 kg of charge).(Zn: 65, Mn: 55, S: 32,0:16, C: 12, H:1, Si: 28 kg/kmol

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