Pirotinli Demir Cevherinin Zenginleştirilmesi

Year 2025, Volume: 27 Issue: 81, 466 - 472, 29.09.2025

Çağrı Çerik , Mehmet Tanrıverdi , Ümit Horasan , Ebru Özpek

https://doi.org/10.21205/deufmd.2025278114

Abstract

Çalışmada yüksek ve düşük pirotin içeren iki farklı manyetit cevherinin zenginleştirme olanakları incelenmiştir. Pirotin yüksek kükürt içeriği sebebiyle demir cevheri konsantrelerinde istenmemektedir. Bu nedenle düşük kükürt içeriğine sahip ürün elde etmek için manyetik zenginleştirme ve flotasyon işlemleri uygulanmıştır. Manyetik zenginleştirmede elde edilen konsantrelere uygulanan flotasyon işleminde yüksek ve düşük pirotinli cevherlerde kükürt oranı sırasıyla %0,46 ve %0,06’ya kadar inerken metal kazanma verimi %88,16 ve %95,09 olarak bulunmuştur. Her iki konsantre içinde demir tenörü %65’in üzerinde olup satılabilir manyetit konsantresi özelliğini karşılamaktadır.

Keywords

Manyetit , Pirotin , Flotasyon , Manyetik Zenginleştirme

Beneficiation of Magnetite - Pyrrhotite Ore

Abstract

In the study, beneficiation of two different magnetite ores containing high and low pyrrhotite content was examined. Pyrrhotite is and undesired mineral in iron ore concentrates due to its high sulfur content. Therefore, magnetic beneficiation and flotation processes were applied to obtain products with low sulfur content. In the flotation process applied to the concentrates obtained in magnetic enrichment, the sulfur content in high and low pyrrhotite ores decreased to 0.46% and 0.06%, respectively, while the metal recovery efficiency was found to be 88.16% and 95.09%. The iron content in both concentrates is over 65% and meets the salable imagnetit concentration specifications.

Keywords

Magnetite , Pyrrhotite , Flotation , Magnetic Separation

References

• Yu, K., Yu, Y., Xu, X. 2013. Separation behavior and mechanism of hematite and collophane in the presence of collector RFP-138, Transactions of Nonferrous Metals Society of China, Vol. 23, pp. 501-507.
• Yu, J., Ge, Y., Cai, X. 2016. The Desulfurization of Magnetite Ore by Flotation with a Mixture of Xanthate and Dixanthogen, Minerals, Vol. 6, no. 3, p. 70.
• Miller, J.D., Li, J., Davidtz, J.C., Vos, F. 2005. A review of pyrrhotite flotation chemistry in the processing of PGM ores, Minerals Engineering, Vol. 18, no. 8, pp. 855-865.
• Manouchehri, H.R. 2014. Pyrrhotite flotation and its selectivity against pentlandite in the beneficiation of nickeliferous ores: An electrochemistry perspective, Mining, Metallurgy and Exploration, Vol. 31, no. 2, pp. 115-125.
• Arvidson, B., Klemetti, M., Knuutinen, T., Kuusisto, M., Manc, Y.T., Hughes-Narborough, C. 2013. Flotation of pyrrhotite to produce magnetite concentrates with a sulphur level below 0.05% w/w, Minerals Engineering, Vol. 50-51, pp. 4-12.
• Allison, S.A., O’Connor, C.T. 2011. An investigation into the flotation behaviour of pyrrhotite, International Journal of Mineral Processing, Vol. 98, pp. 202-207.
• Khan, A., Kelebek, S. 2004. Electrochemical aspects of pyrrhotite and pentlandite in relation to their flotation with xanthate. part-I: Cyclic voltammetry and rest potential measurements, Journal of Applied Electrochemistry, Vol. 34, no. 8, pp. 849-856.
• Ekmekçi, Z., Becker, M., Tekes, E.B., Bradshaw, D. 2010. An impedance study of the adsorption of CuSO₄ and SIBX on pyrrhotite samples of different provenances, Minerals Engineering, Vol. 23, no. 11-13, pp. 903-907.
• Buswell, A.M., Nicol, M.J. 2002. Some aspects of the electrochemistry of the flotation of pyrrhotite, Journal of Applied Electrochemistry, Vol. 32, no. 12, pp. 1321-1329.
• Bozkurt, V., Xu, Z., Finch, J.A. 1998. Pentlandite/pyrrhotite interaction and xanthate adsorption, International Journal of Mineral Processing, Vol. 52, no. 4, pp. 203-214.
• Fornasiero, D., Montalti, M., Ralston, J. 1995. Kinetics of adsorption of ethyl xanthate on pyrrhotite: in situ UV and infrared spectroscopic studies, Journal of Colloid and Interface Science, Vol. 172, no. 2, pp. 467-478.
• Allison, S.A., Goold, L.A., Nicol, M.J., Granville, A. 1972. A determination of the products of reaction between various sulfide minerals and aqueous xanthate solution, and a correlation of the products with electrode rest potentials, Metallurgical Transactions, Vol. 3, no. 10, pp. 2613-2618.
• Belzile, N., Chen, Y., Cai, M., Li, Y. 2004. A review on pyrrhotite oxidation, Journal of Geochemical Exploration, Vol. 84, no. 2, pp. 65-76.
• Becker, M., Villiers, J., Bradshaw, D. 2010. The flotation of magnetic and non-magnetic pyrrhotite from selected nickel ore deposits, Minerals Engineering, Vol. 23, pp. 11-13.
• Kelebek, S., Nanthakumar, B., Katsabanis, P.D. 2007. Oxidation of complex Ni–Cu sulphide ores and its implication for flotation practice, Canadian Metallurgical Quarterly, Vol. 46, pp. 279-284.
• Yuan, Q., Mei, G., Liu, C., Cheng, Q., Yang, S. 2022. A novel sulfur-containing ionic liquid collector for the reverse flotation separation of pyrrhotite from magnetite, Separation and Purification Technology, Vol. 303, p. 122189.