التفاصيل البيبلوغرافية
| العنوان: |
DETERMINATION OF THE OPTIMUM CONDITIONS FOR BENEFICIATION OF SELECTED NIGERIAN IRON ORES USING SHAKING TABLE. |
| المؤلفون: |
AJAKA, Ebenezer Oyedele, ADESINA, Ayotunde Emmanuel, LAWAL, Abiodun I. |
| المصدر: |
Annals of the Faculty of Engineering Hunedoara - International Journal of Engineering; Nov2015, Vol. 13 Issue 4, p205-212, 8p |
| مصطلحات موضوعية: |
TRANSITION metals, X-ray fluorescence, PARTICLE size determination |
| مستخلص: |
The optimum gravity separation conditions for beneficiation of iron ores from Itakpe and Ajabanoko were studied using shaking table. Bulk representative samples were collected from the two locations and their chemical and mineralogical compositions were determined using X-ray fluorescent and microscope respectively. The mineralogical studies of the two deposits shows that hematite is the most dominant iron mineral in the Itakpe iron ore while magnetite is the most dominant iron mineral in the Ajabanoko iron ore. Results of the chemical composition analyses indicated that the grade of Itakpe iron ore is 36.18% Fe while that of Ajabanoko is 34.14% Fe. The results of determination of concentration criteria shows the two deposits can also be beneficiated on a large scale with gravity techniques. Beneficiation study with shaking table at feed rate of 0.15 L/sec of the slurry and at inclination of 80 and a stroke length of 5 cm gives optimum recovery of iron to be 69.83% at 20% solid at +600 µm particle size for Itakpe iron ore while the optimum recovery was found to be 83.13% at 20% solid at +900 µm particle size for Ajabanoko iron ore. Similarly, the highest Fe grade of Itakpe iron ore was 70.9% at 20% solid and + 300 µm particle size, while the highest Fe grade of Ajabanoko iron ore was recorded at 69.9% at 20% solid and + 150 µm particle size with the same condition. The results show particle size and dilution ratio play vital roles on the recovery of the iron minerals. [ABSTRACT FROM AUTHOR] |
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| قاعدة البيانات: |
Complementary Index |
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