Method for Transformation of Weakly Magnetic Minerals (Hematite, Goethite) into Strongly Magnetic Mineral (Magnetite) to Improve the Efficiency of Technologies for Oxidized Iron Ores Benefication

Authors

  • O. Ponomarenko Semenenko Institute of Geochemistry, Mineralogy and ore Formation, NAS of Ukraine, Kyiv
  • A. Brik Semenenko Institute of Geochemistry, Mineralogy and ore Formation, NAS of Ukraine, Kyiv
  • N. Dudchenko Semenenko Institute of Geochemistry, Mineralogy and ore Formation, NAS of Ukraine, Kyiv
  • O. Yushin Semenenko Institute of Geochemistry, Mineralogy and ore Formation, NAS of Ukraine, Kyiv

DOI:

https://doi.org/10.15407/scin11.02.033

Keywords:

magnetite, hematite, goethite, structure transformation.

Abstract

 A new method for relatively simple transformation of weakly magnetic minerals (goethite (α-FeOOH) and hematite (α-Fe2O3)) into strongly magnetic mineral (magnetite (Fe3O4)) was developed. It was shown, that transformation of structure and magnetic characteristics of go ethite and hematite are realized in the presence of starch at relatively low temperatures (in the range of 300—600 °С). Obtained results open up new possibilities for development of effective technologies for oxidized iron ore beneficiation.

References

Ponomarenko A.N., Brik A.B., Dudchenko N.A., Yushyn A.A. Novye enerho- y materyalosberehaiuschye tekhnolohyy sozdanyia zhelezorudnykh kontsentratov yz okyslennykh y dyspersnykh zheleznykh rud. Materialy druhoi mizhnarodnoi naukovo-tekhnichnoi konferentsii «Heomekhanichni aspekty ta ekolohichni naslidky vidpratsiuvannia rudnykh pokladiv». Vydavnychyj tsentr Kryvoriz’koho nats. un-tu, 2012, pp. 197—198 [in Ukrainian].

Rukovodstvo po neorhanycheskomu syntezu. Moskva: Myr, 1985, T.5, p. 1751 [in Russian].

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Published

2024-06-24

Issue

Vol. 11 No. 2 (2015): Science and Innovation

Section

Research and Engineering Innovative Projects of the National Academy of Sciences of Ukraine