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|Title:||Determination of the optimum conditions for dissolution of magnesite with H<sub>2</sub>SO<sub>4</sub> solutions|
|Abstract:||Basic data on leaching of magnesite (MgCO<sub>3</sub>) with sulphuric acid are of interest from the point of view of the industrial process for obtaining pure MgSO<sub>4</sub>. The Taguchi method was used to determine the optimum conditions for the dissolution of magnesite in H<sub>2</sub>SO<sub>4</sub> solutions. The experiments were performed within the ranges mentioned herein i.e. 20-65°C for reaction temperature, 0.5/100-10/100 g/mL for solid-to-liquid ratio, 0.2-5 M for acid concentration, 5-60 min for reaction time and 150-750 rpm for stirring speed. The optimum conditions for these factors were found to be 65°C, 5/100 g/mL, 2 M, 60 min and 300 rpm, respectively. Under these conditions, the dissolution mass fraction of MgCO<sub>3</sub> in H<sub>2</sub>SO<sub>4</sub> solutions were <i style="">w </i>= 96.32%.|
|ISSN:||0975-0991 (Online); 0971-457X (Print)|
|Appears in Collections:||IJCT Vol.13(4) [July 2006]|
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