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In this study, the molten saltMolten salt method was used to separate Fe, Ti, and V from vanadium-titaniumTitanium-magnetite concentrateMagnetite concentrate in one step. Based on the characterizationCharacterization results of vanadium-titaniumTitanium-magnetite concentrateMagnetite concentrate raw materials, thermodynamicThermodynamics calculation of the reactants in the system was carried out using HSC and Factsage thermodynamicThermodynamics calculation software. The results show that Fe components in FeTiO3 and Fe2TiO5 are chemically dissolved into molten saltMolten salt, and Ti components are enriched in the anode slime. In the electrolysis process, Fe component of FeV2O4 in the anode is electrochemically dissolved, while the free O2− oxidizes V component and enters the molten saltMolten salt in the form of VO3−. Then Fe components of Fe3O4 and FeTiO3 are electrochemically dissolved into the molten saltMolten salt successively. According to the difference of reduction potential of Fe ion and VO3− in molten saltMolten salt, Fe componentVanadium Titanium-magnetite Concentrate can be selectively reduced in the cathode.

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Thermodynamic Analysis of Fe, Ti, and V in Vanadium-Titanium-Magnetite Concentrate Separated by Molten Salt Electrolysis

  • 会议论文

  • 发表日期：

    2025年

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  • Geng Chen,
  • Hui Li,
  • Jinglong Liang

摘要

In this study, the molten saltMolten salt method was used to separate Fe, Ti, and V from vanadium-titaniumTitanium-magnetite concentrateMagnetite concentrate in one step. Based on the characterizationCharacterization results of vanadium-titaniumTitanium-magnetite concentrateMagnetite concentrate raw materials, thermodynamicThermodynamics calculation of the reactants in the system was carried out using HSC and Factsage thermodynamicThermodynamics calculation software. The results show that Fe components in FeTiO3 and Fe2TiO5 are chemically dissolved into molten saltMolten salt, and Ti components are enriched in the anode slime. In the electrolysis process, Fe component of FeV2O4 in the anode is electrochemically dissolved, while the free O2− oxidizes V component and enters the molten saltMolten salt in the form of VO3−. Then Fe components of Fe3O4 and FeTiO3 are electrochemically dissolved into the molten saltMolten salt successively. According to the difference of reduction potential of Fe ion and VO3− in molten saltMolten salt, Fe componentVanadium Titanium-magnetite Concentrate can be selectively reduced in the cathode.