Processing of iron ore fines from alswaween Kingdom of Saudi Arabia

• Autorzy: Ahmed H. A. M. , Mahran G. M. A.
• Języki publikacji: EN

Abstrakty

EN

Iron ores located in the Alswaween area (Saudi Arabia) are of finely disseminated nature. They require ultrafine grinding for considerable degree of liberation. In this paper, different upgrading tech-niques were tried for their processing. The applied upgrading techniques included selective flocculation and column flotation as recent efficient technologies in fines upgrading. Each technique was investigated and optimized separately. Results showed that neither selective flocculation nor column flotation can be successfully used alone to produce high quality iron concentrate especially when using iron ore of size fraction 100% -0.075 mm. The best quality concentrate was found to have 55% Fe and 57% Fe when applying selective flocculation and column flotation, respectively at their optimum operating conditions. Meanwhile, the previously obtained results can be significantly improved when grinding the ore below 45 μm and applying selective flocculation as cleaning step for the concentrate obtained from the column flotation. Thus, it is possible to obtain concentrate having iron content of 63.55% Fe with 52.3% yield, which means an iron recovery in concentrate of ~80%.

Słowa kluczowe

EN

iron ore fines; flocculation; column flotation; selectivity; dissemination; starch

• Wydawca: Oficyna Wydawnicza Politechniki Wrocławskiej
• Czasopismo: Physicochemical Problems of Mineral Processing
• Rocznik: 2013
• Tom: Vol. 49, iss. 2
• Strony: 419--430
• Opis fizyczny: Bibliogr. 17 poz., rys., tab.

Twórcy

autor

Ahmed H. A. M.

• Mining Engineering Dept, Faculty of Engineering, King Abdulaziz University, Saudi Arabia Permanent address: Central Metallurgical Research and Development Institute (CMRDI), Helwan, Cairo, Egypt

autor

Mahran G. M. A.

• King Abdulaziz University, Saudi Arabia, Permanent address: Alazher University, Qena Branch, Egypt

Bibliografia

• 1. AHMED H.A.M., EL-MIDANY A.A, ABDEL-KHALEK N.A., 2007, Statistical optimisation of some parameters affecting flocculation of Egyptian iron ore, Mineral Processing and Extractive Metal-lurgy, Trans. Inst. Min Metall. C, Vol. 116, No 4.
• 2. AROL A.I, IWASAKI I., 2003, Effect of sodium silicate on flocculation of hematite with starch in the presence of calcium, Separation Science and Technology, Vol. 38, No. 3, 647–659.
• 3. BHASKAR RAJU G., PRABHAKAR S., SANKARAN C., 1993, Beneficiation of iron ores by column flotation, Trans. Ins. Min. Met., Sec. C, 132–135.
• 4. COLOMBO A.F., 1986, Concentration of Iron Oxides by Selective Flocculation-Flotation, [in:] Ad-vances in Mineral Processing, Edited by Somasundaran, P., Published by The Society of Mining En-gineers, Inc., Littleton, CO, 695–713.
• 5. ELMIDANY A.A., AHMED H.A.M., 2008, Assessment of a selectivity criterion for upgrading ultrafine iron ores by selective flocculation, Minerals & Metallurgical Processing Vol. 25, No. 2, 91–96.
• 6. FLINT I.M., WYSLOUZIL H.E., DE LIMA ANDRADE V.L., MURDOCK D.J., 1992, Column flotation of iron ore, Minerals Engineering, Vol. 5, Issues 10–12, October–December, 1185–1194.
• 7. IWASAKI I., LIPP, R.J., 1982, Flocculation and selective flocculation of iron ores, Engineering Founda-tion, 321–341.
• 8. LUO LI-QUN; ZHANG JING-SHENG; YU YONG-FU, 2005, Recovering limonite from Australia iron ores by flocculation-high intensity magnetic separation, Journal of Central South University of Technology, Vol. 12, No. 6, 682–687.
• 9. PANDA L., DAS B., RAO D.S., MISHRA B.K., 2011, Selective Flocculation of Banded Hematite Quartzite (BHQ) Ores, The Open Mineral Processing Journal, 2011, 4, 45–51.
• 10. PRADIP D., 1994, Beneficiation of Indian iron ore slimes, Minerals & Metallurgical Processing, v. 6, No. 3, pp.179-194.
• 11. RAO H., K.; NAYAK A.; MAHAPATRA S.N.; NARASIMHAN K.S., 1985, Selective flocculation for the recovery of iron in Kudremukh tailings, Transactions of the American Institute of Mining, Metal-lurgical, and Petroleum Engineers, Society, vol. 278, 1312–1315.
• 12. ROY S., DAS A., 2008, Characterization and processing of low-grade iron ore slime from the Jilling area of India, Mineral Processing and Extractive Metallurgy Rev., Vol. 29, 213–231.
• 13. STEPHEN B.H., MISTY N.D., 2007, Slon magnetic separator: A new approach for recovering and concentrating iron ore fines, Montreal Energy & Mines, Montreal, April 29–May 2.
• 14. SUBRAMANIAN S.; NATARAJAN K.A., 1991, Flocculation, filtration and selective flocculation stud-ies on haematite ore fines using starch, Minerals Engineering, Vol. 4, No. 5–6, 587–598.
• 15. WEISSENBORN P.K.; WARREN L.J.; DUNN, J.G., 1994a, Optimisation of selective flocculation of ultrafine iron ore, International Journal of Mineral Processing, Vol. 42, No. 3–4, 191–213.
• 16. WEISSEBORN P.K., WARREN L.J., DUNN J.G., 1994b, Selective flocculation of ultra fine iron ore.1.Mechanisim of adsorption of starch into hematite. Colloids and Surfaces, Vol. 99, 11–27.
• 17. XINGHUA L, YONGFU Y, WEN C, XIAOHU Y., 2012, Effect of selective flocculation desliming on flotation of fine grained Yuanjiacun iron ore, International Mineral Processing Congress, September 24–28, New Delhi, India.