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Rare Metals
Published in: Rare Metals 6/2015

01-06-2015

Mineral phase reconstruction behavior of direct reduction and smelting titanium slag at high temperature and slow cooling

Authors: Yi-Jie Wang, Shu-Ming Wen, Qi-Cheng Feng, Zhi-Wen Ye, Min Wang

Published in: Rare Metals | Issue 6/2015

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Abstract

Titanium slag in this study was produced by subjecting titanomagnetite concentrate to direct reduction-electric furnace smelting. Processing mineralogy and mineral phase reconstruction behavior at high temperature and slow cooling treatment were examined by chemical analysis, X-ray diffraction (XRD), optical microscopy (OM), scanning electron microscopy (SEM), and energy-dispersive spectroscopy (EDS). Anosovite solid solution is the main titanium product by the direct reduction and smelting process. Results of slow-cooling experiments show that crystal volume and size increase as cooling rate decreases. Anosovite and gangue mineral crystals develop fully with large crystal volume and size at a cooling rate of 2 K·min−1. Moreover, the growth of anosovite crystal was characterized by crystal nucleation and growth theory. These results provide further insights into the separation of anosovite from gangue by mineral processing.
previous article Antimony recovery from SbCl5 acid solution by hydrolysis and aging

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Metadata
Title
Mineral phase reconstruction behavior of direct reduction and smelting titanium slag at high temperature and slow cooling
Authors
Yi-Jie Wang
Shu-Ming Wen
Qi-Cheng Feng
Zhi-Wen Ye
Min Wang
Publication date
01-06-2015
Publisher
Nonferrous Metals Society of China
Published in
Rare Metals / Issue 6/2015
Print ISSN: 1001-0521
Electronic ISSN: 1867-7185
DOI
https://doi.org/10.1007/s12598-015-0491-8

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