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Published in: Metallurgist 9-10/2022

01-02-2022

High-Efficiency Extraction of Fe, V, and Ti from Vanadium Titano-Magnetite Concentrate Based on Activated Reduction

Authors: Zhang Jun, Wang Feng, Qi Yuan-hong, Yan Din-liu, Zhao Hai-quan

Published in: Metallurgist | Issue 9-10/2022

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Abstract

Methods of chemical analysis, XRD, and pH monitoring are adopted in order to study wet extraction of Fe, V and Ti based on activated reduction, and the control conditions as well as the degree of recovery are determined. The primary-leaching in NaHCO3 saturated solution followed by final-leaching via carbonization is possible, and the leaching ratio for Na approaches 94% as the pH value of the alkali is controlled at 8 in the carbonization process. Metallic iron powder with an iron content of 94% is prepared by means of magnetic separation, and there are few slag fragments bearing V and Ti dispersed within iron particles. Precipitation of NaHCO3 and Si, Al impurities is completed during thorough carbonization at a pH value of 6, and the concentration of Si and Al in the resultant solution after carbonization meets the specifications for V extraction by an ammonia method. Residue from carbonization leaching displays good solubility in dilute acid, the leaching rate of Ti in dilute 15 vol.% hydrochloric acid exceeds 95%, and a purity of 98.4% for titanium white pigment is acquired from the acid-leaching lixivium by reheating hydrolysis. Finally, the overall degree of Fe, V and Ti recovery during wet extraction reaches 94, 90 and 90% respectively.

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Metadata
Title
High-Efficiency Extraction of Fe, V, and Ti from Vanadium Titano-Magnetite Concentrate Based on Activated Reduction
Authors
Zhang Jun
Wang Feng
Qi Yuan-hong
Yan Din-liu
Zhao Hai-quan
Publication date
01-02-2022
Publisher
Springer US
Published in
Metallurgist / Issue 9-10/2022
Print ISSN: 0026-0894
Electronic ISSN: 1573-8892
DOI
https://doi.org/10.1007/s11015-022-01255-9

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