Two Potential Ways of Vanadium Extraction from Thin Film Steelmaking Slags

Tetiana Shyrokykh; Lukas Neubert; Olena Volkova; Seetharaman Sridhar

doi:10.3390/pr11061646

Two Potential Ways of Vanadium Extraction from Thin Film Steelmaking Slags

Tetiana Shyrokykh, Lukas Neubert, Olena Volkova, Seetharaman Sridhar

Materials Science and Engineering

Research output: Contribution to journal › Article › peer-review

1 Scopus citations

Abstract

During the steelmaking process, a great amount of slag is generated as a by-product. Vanadium-bearing steelmaking slags are classified as hazardous and require special handling and storage due to the toxicity of vanadium pentoxides. At the same time, such slags are valuable sources for the recovery of vanadium. The present work reviews the investigations on vanadium recovery from CaO-SiO₂-FeO-V₂O₅ thin film slags under the neutral and oxidizing conditions in the temperature range 1653 K to 1693 K (1380 °C to 1420 °C) using Single Hot Thermocouple Technique (SHTT). The slag samples were analyzed by SEM/EDX. The results indicated that vanadium pentoxide evaporation can be up to 17.73% under an oxidizing atmosphere, while spinel formation under an argon atmosphere was detected in the conditions of thin film slags.

Original language	English (US)
Article number	1646
Journal	Processes
Volume	11
Issue number	6
DOIs	https://doi.org/10.3390/pr11061646
State	Published - Jun 2023

Keywords

Single Hot Thermocouple Technique
evaporation
recycling
spinel formation
vanadium pentoxide

ASJC Scopus subject areas

Bioengineering
Chemical Engineering (miscellaneous)
Process Chemistry and Technology

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10.3390/pr11061646

Cite this

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title = "Two Potential Ways of Vanadium Extraction from Thin Film Steelmaking Slags",

abstract = "During the steelmaking process, a great amount of slag is generated as a by-product. Vanadium-bearing steelmaking slags are classified as hazardous and require special handling and storage due to the toxicity of vanadium pentoxides. At the same time, such slags are valuable sources for the recovery of vanadium. The present work reviews the investigations on vanadium recovery from CaO-SiO2-FeO-V2O5 thin film slags under the neutral and oxidizing conditions in the temperature range 1653 K to 1693 K (1380 °C to 1420 °C) using Single Hot Thermocouple Technique (SHTT). The slag samples were analyzed by SEM/EDX. The results indicated that vanadium pentoxide evaporation can be up to 17.73% under an oxidizing atmosphere, while spinel formation under an argon atmosphere was detected in the conditions of thin film slags.",

keywords = "Single Hot Thermocouple Technique, evaporation, recycling, spinel formation, vanadium pentoxide",

author = "Tetiana Shyrokykh and Lukas Neubert and Olena Volkova and Seetharaman Sridhar",

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AU - Shyrokykh, Tetiana

AU - Neubert, Lukas

AU - Volkova, Olena

AU - Sridhar, Seetharaman

PY - 2023/6

Y1 - 2023/6

N2 - During the steelmaking process, a great amount of slag is generated as a by-product. Vanadium-bearing steelmaking slags are classified as hazardous and require special handling and storage due to the toxicity of vanadium pentoxides. At the same time, such slags are valuable sources for the recovery of vanadium. The present work reviews the investigations on vanadium recovery from CaO-SiO2-FeO-V2O5 thin film slags under the neutral and oxidizing conditions in the temperature range 1653 K to 1693 K (1380 °C to 1420 °C) using Single Hot Thermocouple Technique (SHTT). The slag samples were analyzed by SEM/EDX. The results indicated that vanadium pentoxide evaporation can be up to 17.73% under an oxidizing atmosphere, while spinel formation under an argon atmosphere was detected in the conditions of thin film slags.

AB - During the steelmaking process, a great amount of slag is generated as a by-product. Vanadium-bearing steelmaking slags are classified as hazardous and require special handling and storage due to the toxicity of vanadium pentoxides. At the same time, such slags are valuable sources for the recovery of vanadium. The present work reviews the investigations on vanadium recovery from CaO-SiO2-FeO-V2O5 thin film slags under the neutral and oxidizing conditions in the temperature range 1653 K to 1693 K (1380 °C to 1420 °C) using Single Hot Thermocouple Technique (SHTT). The slag samples were analyzed by SEM/EDX. The results indicated that vanadium pentoxide evaporation can be up to 17.73% under an oxidizing atmosphere, while spinel formation under an argon atmosphere was detected in the conditions of thin film slags.

KW - Single Hot Thermocouple Technique

KW - evaporation

KW - recycling

KW - spinel formation

KW - vanadium pentoxide

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Two Potential Ways of Vanadium Extraction from Thin Film Steelmaking Slags

Abstract

Keywords

ASJC Scopus subject areas

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