Effect of roasting process on the V (anti-tumor agent) recovery from the slag of the electric arc furnace (EAF)

Abstract

Due to the lack of mineral sources of Vanadium (V) in many parts of the world and its recent applications in the field of medicine (as an anti-tumor agent), one of the biggest sources of V is the extraction of V as V2O5 from steel slag in melting process. In this study, the pyro-hydrometallurgical process has been investigated for the extraction of V from steel slag created in a convertor. To get an optimum process of salt roasting, the effect of roasting temperature, time, salt value, slag particle size, and cooling method have been investigated. For this purpose, slag samples were roasted with sodium carbonate and then dissolved in water. The amount of V2O5 obtained by optical spectrometry is the efficiency criterion of this process. Results showed that the optimum condition for the extraction of V2O5 from steel slag was 15 wt % of Na2CO3 as a salt roasting agent and hating for 60 min at 1100 °C.

Keywords

• V extraction
• Anti-tumor particles
• Optimization process
• Salt roasting
• Na2CO3