Hydrometallurgical processing technology of titanomagnetite ores

Victor Ivanovich Sachkov, Roman Andreevich Nefedov, Vladislav Viktorovich Orlov, Rodion Olegovych Medvedev, Anna Sergeevna Sachkova

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

In this paper, we study the possibility of obtaining iron and titanium-vanadium concentrates with highest contents of iron and titanium, respectively, through hydrometallurgical processing of the titanomagnetite ores of the Chineisk deposit. We varied two key parameters to determine the efficiency of the process: (a) concentration of leaching solution (ammonium fluoride), and (b) acidity of solution. Ammonium fluoride concentration was varied from 0.08 mol/L to 4.2 mol/L with the other fixed parameters. It was shown that optimum ammonium fluoride concentration for leaching the ore is 0.42 mol/L, at these concentrations iron and titanium contents are about 62.8 wt % and 3.5 wt % in solid phase, respectively. The acidity of solution was changed by adding of hydrofluoric acid with varied concentration (from 0.86 mol/L to 4.07 mol/L) to ammonium fluoride solution with fixed concentration of 0.42 mol/L. The best results (degree of titanium extraction = 63.7%) were obtained when using a solution of hydrofluoric acid with concentration 4.07 mol/L. In this case, the addition of acid makes it possible to increase the Fe/Ti ratio by 3.4 times in comparison with the original ore. Thus, we conclude that acidity and the concentration of ammonium fluoride solution significantly influences the selectivity of the hydrometallurgical process.

Original languageEnglish
Article number2
JournalMinerals
Volume8
Issue number1
DOIs
Publication statusPublished - 1 Jan 2018

Fingerprint

titanomagnetite
Ores
fluoride
ammonium
titanium
Processing
Titanium
Acidity
acidity
hydrofluoric acid
Hydrofluoric acid
Iron
iron
Leaching
leaching
vanadium
Vanadium
ore
Deposits
Acids

Keywords

  • Fe/Ti ratio
  • Hydrometallurgical process
  • Iron concentrates
  • Leaching
  • Titanium-vanadium concentrates
  • Titanomagnetite ores

ASJC Scopus subject areas

  • Geotechnical Engineering and Engineering Geology
  • Geology

Cite this

Sachkov, V. I., Nefedov, R. A., Orlov, V. V., Medvedev, R. O., & Sachkova, A. S. (2018). Hydrometallurgical processing technology of titanomagnetite ores. Minerals, 8(1), [2]. https://doi.org/10.3390/min8010002

Hydrometallurgical processing technology of titanomagnetite ores. / Sachkov, Victor Ivanovich; Nefedov, Roman Andreevich; Orlov, Vladislav Viktorovich; Medvedev, Rodion Olegovych; Sachkova, Anna Sergeevna.

In: Minerals, Vol. 8, No. 1, 2, 01.01.2018.

Research output: Contribution to journalArticle

Sachkov, Victor Ivanovich ; Nefedov, Roman Andreevich ; Orlov, Vladislav Viktorovich ; Medvedev, Rodion Olegovych ; Sachkova, Anna Sergeevna. / Hydrometallurgical processing technology of titanomagnetite ores. In: Minerals. 2018 ; Vol. 8, No. 1.
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