Abstract
The extraction of titanium from the Ti-enriched product which was prepared from Ti-bearing blast furnace slag by alkali roasting and water leaching, was investigated by dilute sulfuric acid leaching. The effects of sulfuric acid mass fraction, the ratio of acid to slag, reaction temperature and time on the extraction rate of titanium were studied in this paper. The results show that titanium recovery of 92.62 pct was obtained under the conditions of sulfuric acid mass fraction of 50 pct, ratio of acid to slag of 1.5:1, reaction temperature of 160°C and reaction time of 2.5hours. The kinetic study indicates that the acid leaching reaction was controlled by the rate of diffusion, and kinetics equation of drozdov can be described the acid leaching reaction.
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