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Production of silicomanganese alloy from Egyptian low grade manganese ores / Esraa Mahmoud Kotb Ataby ; Supervised Magdi Fouad Abadir , Hoda Salama Rabie Elfaramawy

By: Contributor(s): Material type: TextTextLanguage: English Publication details: Cairo : Esraa Mahmoud Kotb Ataby , 2020Description: 109 P . : charts , facsmilies , photographs ; 30cmOther title:
  • إنتاج سبيكة السيليكومنجنيز من خامات المنجنيز المصرية منخفضة الرتبة [Added title page title]
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Dissertation note: Thesis (M.Sc.) - Cairo University - Faculty of Engineering - Department of Chemical Engineering Summary: In the last years, it has become a great necessary to develop a new technology for utilizing the unused huge amounts of low grade manganese ores with Mn/Fe ratio equals 0.6-1 in the production of silicomanganese due to the gradual depletion of high grade manganese ores reserves. This target can be achieved through a double smelting process in submerged arc furnace. The first process is a carbo-thermic reduction of low grade manganese ore in presence of coke and quartzite to produce low manganese pig iron (2-3% Mn by weight) and high manganese slag with high Mn/Fe ratio reaching about 9 which is suitable after that in the production of silicomanganese. The second smelting process is a carbo-thermic reduction of the produced manganese rich slag in presence of medium grade manganese ore, quartzite, coke and dolomite for production of standard silicomanganese (Si16Mn63 and Si17Mn65). The parameters affecting on the reduction of low grade manganese ore which are power, reducing agent and charge basicity were investigated. The parameters affecting the production process of silicomanganese, namely, the reducing agent, charge basicity and Mn/Si ratio were also investigated. Finally, the optimum conditions obtained for the two processes were applied on a 0.1 MVA pilot scale submerged arc furnace
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Thesis Thesis قاعة الرسائل الجامعية - الدور الاول المكتبة المركزبة الجديدة - جامعة القاهرة Cai01.13.04.M.Sc.2020.Es.P (Browse shelf(Opens below)) Not for loan 01010110082026000
CD - Rom CD - Rom مخـــزن الرســائل الجـــامعية - البدروم المكتبة المركزبة الجديدة - جامعة القاهرة Cai01.13.04.M.Sc.2020.Es.P (Browse shelf(Opens below)) 82026.CD Not for loan 01020110082026000

Thesis (M.Sc.) - Cairo University - Faculty of Engineering - Department of Chemical Engineering

In the last years, it has become a great necessary to develop a new technology for utilizing the unused huge amounts of low grade manganese ores with Mn/Fe ratio equals 0.6-1 in the production of silicomanganese due to the gradual depletion of high grade manganese ores reserves. This target can be achieved through a double smelting process in submerged arc furnace. The first process is a carbo-thermic reduction of low grade manganese ore in presence of coke and quartzite to produce low manganese pig iron (2-3% Mn by weight) and high manganese slag with high Mn/Fe ratio reaching about 9 which is suitable after that in the production of silicomanganese. The second smelting process is a carbo-thermic reduction of the produced manganese rich slag in presence of medium grade manganese ore, quartzite, coke and dolomite for production of standard silicomanganese (Si16Mn63 and Si17Mn65). The parameters affecting on the reduction of low grade manganese ore which are power, reducing agent and charge basicity were investigated. The parameters affecting the production process of silicomanganese, namely, the reducing agent, charge basicity and Mn/Si ratio were also investigated. Finally, the optimum conditions obtained for the two processes were applied on a 0.1 MVA pilot scale submerged arc furnace

Issued also as CD

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