Article ID Journal Published Year Pages File Type
4401589 Procedia Environmental Sciences 2016 7 Pages PDF
Abstract

The extraction of iron from vanadium slag was attempted using pressure acid leaching. The effects of the several parameters which included reaction time, H+/slag ratio, leaching temperature, and concentration of additive (Na2S) upon leaching efficiency of iron were investigated. The results showed that the leaching efficiency of iron could reach above 76% in the best leaching condition. By using Leaching solution as iron source, Fe2O3 hollow spheres have been successfully synthesized via facile hydrothermal method by using carbon spheres as template followed by a subsequent heat treatment. The experimental results show that hollow spheres structures of Fe2O3 with the mean particle size of 0.9-1.2 μm is single hexagonal crystal system.

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