Kanari, N and Mishra, D and Fillipov, L and Diot, F and Mochon, J and Allain, E (2010) Kinetics of hematite chlorination with Cl(2) and Cl(2) + O(2). Part II. Chlorination with Cl(2) + O(2). Thermochimica Acta, 506 (1-2). pp. 34-40.
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The kinetics of chlorination of hematite by Cl(2) +O(2) have been investigated in the temperature range from 600 to 1025 degrees C by using thermogravimetric analysis (TGA). The effects of Cl(2)/O(2) ratio, gas velocity, temperature and partial pressure of reactive gases on the reaction rate were determined. The reaction rate of Fe(2)O(3) chlorination increased steadily with Cl(2)/O(2) ratio reaching the maximum for the chlorination in absence of oxygen. The hematite chlorination process by Cl(2) + O(2) was characterized by an apparent activation energy of about 148 kJ/mol in the whole temperature range studied. The apparent reaction orders with respect to Cl(2) + O(2), Cl(2) and O(2) at 750 degrees C were about 0.71, 1.44, and -0.61, respectively. Almost the same values of reaction orders were obtained at 950 degrees C.
|Uncontrolled Keywords:||Hematite, Oxy-Chlorination, Kinetics|
|Divisions:||Metal Extraction and Forming|
|Deposited By:||Dr Devabrata Mishra|
|Deposited On:||20 Jan 2012 17:20|
|Last Modified:||27 Jun 2013 11:48|
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