Sheila, D and Sankaran, C and Khangaonkar, P R (1991) Studies on the extraction of magnesia from low grade magnesites by carbon dioxide pressure leaching of hydrated magnesia. Minerals Engineering, 4 (1). pp. 79-88.
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The applicability of carbon dioxide pressure leaching for the extraction of magnesia of high purity from low grade magnesites and waste dumps material has been investigated. Factors which influence the magnesia recovery such as time, temperature, pressure, particle size, solid~liquid ratio and calcination temperature have been studied and optimum values were determined. The kinetic data were examined according to therate equation -In(L- ~) against t and the activation energy of 26.4 kJ tool -1 (6.3Kcal tool "1) suggested that the kinetics of the reaction are controlled by surface chemical reaction.
|Uncontrolled Keywords:||Magnesite; carbon dioxide; hydration; pressure leaching; solubility; kinetics|
|Deposited By:||INVALID USER|
|Deposited On:||31 Aug 2010 15:55|
|Last Modified:||09 Feb 2012 12:23|
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