A New Technique for Preparation of High-Grade Titanium Slag from Titanomagnetite Concentrate by Reduction–Melting–Magnetic Separation Processing

This paper proposes a new technique for preparation of high-grade titanium slag from Panzhihua vanadium titanomagnetite concentrate by reduction–melting–magnetic separation processing. Chemical analysis, x-ray diffraction, and scanning electron microscopy in conjunction with energy-dispersive spectr...

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Bibliographic Details
Published in:JOM (1989) 2017-10, Vol.69 (10), p.1801-1805
Main Authors: Lv, Chao, Yang, Kun, Wen, Shu-ming, Bai, Shao-jun, Feng, Qi-cheng
Format: Article
Language:English
Subjects:
Basicity
Chemical analysis
Chemistry/Food Science
Earth Sciences
Energy consumption
Engineering
Environment
Fine grinding
Graphite
Grinding
Investigations
Iron
Magnetic separation
Materials science
Metallizing
Metallurgy
Particle physics
Physics
Scanning electron microscopy
Slag
Spectrum analysis
Steel industry
Studies
Sulfuric acid
Titanium
Titanium oxides
Vanadium
Viscosity
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Summary:This paper proposes a new technique for preparation of high-grade titanium slag from Panzhihua vanadium titanomagnetite concentrate by reduction–melting–magnetic separation processing. Chemical analysis, x-ray diffraction, and scanning electron microscopy in conjunction with energy-dispersive spectroscopy were used to characterize the samples. The effective separation of iron and titanium slag could be realized by melting metallized pellets at 1550°C for 60 min with the addition of 1% CaO (basicity of 1.1) and 2% graphite powder. The small iron particles embedded in the slag could be removed by fine grinding and magnetic separation process. The grade of TiO 2 in the obtained high-grade titanium slag reached 60.68% and the total recovery of TiO 2 was 91.25%, which could be directly applied for producing titanium white by the sulfuric acid process. This technique provides an alternative method to use vanadium titanomagnetite concentrate of the Panzhihua area in China.
ISSN:1047-4838
1543-1851
DOI:10.1007/s11837-017-2507-3