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Paper Information

Journal:   IRANIAN JOURNAL OF MATERIALS SCIENCE AND ENGINEERING   SEPTEMBER 2016 , Volume 13 , Number 3; Page(s) 60 To 71.
 
Paper: 

RECOVERY OF IRON FROM LOW-GRADE HEMATITE ORE USING COAL-BASED DIRECT REDUCTION FOLLOWED BY MAGNETIC SEPARATION

 
 
Author(s):  ALAVI FARD N., SHALCHIAN H.*, RAFSANJANI ABBASI A., VAHDATI KHAKI J., BABAKHANI A.
 
* 
 
Abstract: 

In the present work, iron recovery from a low-grade hematite ore (containing less than 40% iron), which is not applicable in common methods of ironmaking, was studied. Non-coking coal was used as reducing agent. Reduction experiments were performed under various coal to hematite ratios and temperatures. Reduction degree was calculated using the gravimetric method. Reduced samples were subjected to magnetic separation followed by X-ray diffraction analysis. Total iron content, degree of metallization and recovery efficiency in magnetic part were determined by quantitative chemical analysis, which were obtained about 82%, 95% and 64% respectively under optimal conditions. CaO as an additive improved ore reducibility and separation efficiency. The microstructure of reduced samples and final products were analyzed by scanning electron microscopy. Final product with a high degree of metallization can be used in steel making furnaces and charging of blast furnaces which can improve production efficiency and decrease coke usage.

 
Keyword(s): LOW-GRADE IRON ORE, COAL-BASED DIRECT REDUCTION, SPONGE IRON, LIME, MAGNETIC SEPARATION
 
 
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Click to Cite.
APA: Copy

ALAVI FARD, N., & SHALCHIAN, H., & RAFSANJANI ABBASI, A., & VAHDATI KHAKI, J., & BABAKHANI, A. (2016). RECOVERY OF IRON FROM LOW-GRADE HEMATITE ORE USING COAL-BASED DIRECT REDUCTION FOLLOWED BY MAGNETIC SEPARATION. IRANIAN JOURNAL OF MATERIALS SCIENCE AND ENGINEERING, 13(3), 60-71. https://www.sid.ir/en/journal/ViewPaper.aspx?id=569660



Vancouver: Copy

ALAVI FARD N., SHALCHIAN H., RAFSANJANI ABBASI A., VAHDATI KHAKI J., BABAKHANI A.. RECOVERY OF IRON FROM LOW-GRADE HEMATITE ORE USING COAL-BASED DIRECT REDUCTION FOLLOWED BY MAGNETIC SEPARATION. IRANIAN JOURNAL OF MATERIALS SCIENCE AND ENGINEERING. 2016 [cited 2021May12];13(3):60-71. Available from: https://www.sid.ir/en/journal/ViewPaper.aspx?id=569660



IEEE: Copy

ALAVI FARD, N., SHALCHIAN, H., RAFSANJANI ABBASI, A., VAHDATI KHAKI, J., BABAKHANI, A., 2016. RECOVERY OF IRON FROM LOW-GRADE HEMATITE ORE USING COAL-BASED DIRECT REDUCTION FOLLOWED BY MAGNETIC SEPARATION. IRANIAN JOURNAL OF MATERIALS SCIENCE AND ENGINEERING, [online] 13(3), pp.60-71. Available: https://www.sid.ir/en/journal/ViewPaper.aspx?id=569660.



 
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