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نوع الوثيقة : مقال في مجلة دورية 
عنوان الوثيقة :
CATALYTIC EFFECTS OF DOPANT METAL-OXIDES ON THE REDUCTION OF HEMATITE BY CARBON IN THE GRAPHITE-IRON (III) OXIDE SYSTEM
CATALYTIC EFFECTS OF DOPANT METAL-OXIDES ON THE REDUCTION OF HEMATITE BY CARBON IN THE GRAPHITE-IRON (III) OXIDE SYSTEM
 
لغة الوثيقة : العربية 
المستخلص : The effects of doping of hematite with Li+ or Cu2+ ions on the reduction of hematite to iron in the graphite-iron (III) oxide system in air have been investigated using isothermal and dynamic TG techniques. Kinetic analysis of dynamic and isothermal data using different theoretical models have been performed. A comparison of the results for the doped and non-doped samples shows that doping does not change the model for reaction interface, but it remarkably affects the kinetics of the reaction. The isothermal results show that doping with Li2O decreases both E and ln A values, while doping with CuO does not affect E, but increases ln A. A significant decrease occurs in the time for half-completion of reaction, especially at the lower temperatures and in the case of doping with CuO. Doping experiments support the two-stage oxygen transfer mechanism for the reduction of iron oxide with carbon. 
اسم الدورية : INDIAN JOURNAL OF CHEMISTRY SECTION A-INORGANIC BIO-INORGANIC PHYSICAL THEORETICAL & ANALYTICAL CHEMISTRY 
المجلد : 30 
العدد : 1 
سنة النشر : 1991 هـ  
تاريخ الاضافة على الموقع : Saturday, June 14, 2008 

الباحثون

اسم الباحث (عربي)اسم الباحث (انجليزي)نوع الباحثالمرتبة العلميةالبريد الالكتروني
سليمان ناصر باسهلBASAHEL SNباحث  
.HUSSIENY Eباحث  
.DIEFALLAH Mباحث  

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