Kinetics of oxychlorination of magnesium oxide

Abstract : The kinetics of oxychlorination of MgO by Cl2+O2 was studied in the temperature range of 850 degrees C - 1025 degrees C, using thermogravimetric analysis. The effects of Cl2/O2 ratio, gas velocity, temperature and partial pressure of reactive gases on the reaction rate were investigated. The oxychlorination process was characterized by an apparent activation energy of about 214 kJ/mol. The reaction orders with respect to Cl2+O2 , Cl2 and O2 at 950 degrees C were about 0.65, 0.98, and -0.37, respectively. Some data about oxychlorination kinetics of MgO, Cr2O3, and MgCr2O4 contained in chromite were compared. Efficiency of using oxychlorination for the removal of iron oxides contained in magnesia was demonstrated.
Type de document :
Communication dans un congrès
1999 TMS Annual Meeting, 1999, SAN DIEGO, CA, United States. pp. 29-37, EPD CONGRESS 1999
Domaine :
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https://hal.univ-lorraine.fr/hal-01510701
Contributeur : Ndue Kanari <>
Soumis le : mercredi 19 avril 2017 - 16:53:20
Dernière modification le : jeudi 11 janvier 2018 - 06:18:12

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Ndue Kanari, Eric Allain, I. Gaballah. Kinetics of oxychlorination of magnesium oxide. 1999 TMS Annual Meeting, 1999, SAN DIEGO, CA, United States. pp. 29-37, EPD CONGRESS 1999. 〈hal-01510701〉

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