Effective processing of low-grade iron ore through gravity and magnetic separation techniques

• Autorzy: Seifelnassr A. A. S. , Moslim E. M. , Abouzeid A.-Z. M.
• Języki publikacji: EN

Abstrakty

EN

This study investigates the effectiveness of gravity and magnetic concentration techniques for the beneficiation of a Sudanese iron ore, the newly discovered Wadi Halfa iron ore deposit. It is a low-grade type of ore with high silica content, more than 45% SiO2, and an average iron content of about 35% Fe. Based on the fact that there are appreciable differences in specific gravity and magnetic susceptibility between the desired iron minerals and the gangue minerals, it was suggested that gravity separation and/or magnetic separation may be useful to concentrate this type of ore. These two techniques were adopted for the beneficiation of the Wadi Halfa low-grade iron ore. As a result of the fine dissemination of the iron minerals and the most abundant gangue mineral, quartz, the optimum degree of grinding is around 150 micrometers. The rougher tests of both the gravity separation and magnetic separation produced concentrates of about 44% Fe. Each of these two concentrates was cleaned in a second stage of processing using high intensity magnetic separator. Final iron concentrates, assaying about 64% Fe at a recovery of about 70%, were achieved.

Słowa kluczowe

EN

Wadi Halfa iron ore; low-grade iron ore; gravity concentration; magnetic concentration; combined gravity/magnetic concentration

• Wydawca: Oficyna Wydawnicza Politechniki Wrocławskiej
• Czasopismo: Physicochemical Problems of Mineral Processing
• Rocznik: 2012
• Tom: Vol. 48, iss. 2
• Strony: 567--578
• Opis fizyczny: Bibliogr. 19 poz, fig., tab.

Twórcy

autor

Seifelnassr A. A. S.

autor

Moslim E. M.

autor

Abouzeid A.-Z. M.

• Suez Canal University, Faculty of Engineering, Dept. Mining, Suez, Egypt,

Bibliografia

• 1. ABU-ZEID, A.M., 1967, A contribution to the beneficiation of El-Gedida iron ore, Bahariya Oases, Egypt, M.Sc. Thesis, Faculty of Engineering, Cairo University.
• 2. ALI, M.N.W., et al., 2004, A study on the Oolitic Iron Ore Mineralization of Wadi Halfa, Arab Mining Conference, University of Amman, Jorden.
• 3. ALI, M.N.W., BABIKER, M. E., ELTAYEB, H., HAROUN, A., 2003, A study on the oolitic iron ore mineralization of Wadi Halfa, Geolocal Rasearch Authority of Sudan, Report.
• 4. BURT.R, 1999, The role of gravity concentration in modern processing plants, Minerals Engineering 12, 1291-1300.
• 5. FARAGHALY, M.G., 2002, Beneficiation of El-Gedida Barite Iron Ore, Journal of Engineering Science 30, 779-812.
• 6. FATMA, H.A., ARAFA, M.A., 1999, Concentrate from an Egyptian baritic iron ore. Proceedings of the 6th international conference on Mining, Petroleum, and Metallurgy, Faculty of Engineering, Cairo University, Feb. 1999.
• 7. GAUDIN, A.M., 1987, Principles of Mineral Dressing, New Delhi, Tata McGraw-Hill Publishing Company Limited, Mohan Makhijani at Rekha Printers Pvt. Ltd.
• 8. GUNEY, A. et al., 2000, The Beneficiation of Camdag Iron Ore . ITU Mining Faculty ,Mining Eng. Dep. Min and Coal proc. Section ,80626, Maslak, Istanbul, Turkey.
• 9. MOSLIM, E. M., 2010, Beneficiation Studies on low grade iron ore, Wadi Halfa area, Northern Sudan. Ph.D. Thesis, Faculty of Engineering Sciences, Omdurman University, Sudan.
• 10. MANSAR, R.J., BARLEY, R.W., WILLS, B.A., 1991, The shaking table concentrator — The influence of operating conditions and table parameters on mineral separation — The development of a mathematical model for normal operating conditions, Minerals Engineering 4, 369–381.
• 11. MUSSALLAM, F. K., 2004, Fundamental Studies on Upgrading Iron Ores in Egypt, M Sc Thesis, Faculty of Petroleum and Mining Engineering, Suez Canal University.
• 12. MUKHERJEE, A.K. BHATTACHARJEE, D., MISHRA, B.K., 2006, Role of water velocity for efficient jigging of iron ore, Minerals Engineering 19, 952-959.
• 13. ROY, S., 2009, Recovery improvement of fine iron ore particles by multigravity separation. The Open Mineral Processing Journal 2, 17-30.
• 14. ROWAYSHED .S.A., 1983, Beneficiation of El-Bahariya Oasis Low grade Iron Ores, M.Sc. Thesis, Faculty of Engineering, Al-Azhar University, Cairo, p.103
• 15. SAMYKINA, E., SURKOV, A., EPPELBAUM, L., SEMENOV, S., 2005, Do old spoils contain large amounts of economic minerals? Minerals Engineering, 18, 643-645.
• 16. SHIVAMOHAN, R., FORSSBERG, E., 1985, Principles of tabling, International Journal of Mineral Processing 15, 281-295.
• 17. SVOBODA, J., ROSS, V.E., 1989, Particle capture in the matrix of magnetic separator, International Journal of Mineral Processing 27, 75-94.
• 18. SVOBODA, J., 1994, The effect of magnetic field strength on the efficiency of magnetic separation, Mineral Engineering 7, 747-757.
• 19. SVOBODA, J., FUJITA, T., 2003, Recent developments in magnetic methods of material separation, Minerals Engineering 16, 785-793.