Preparation, Sintering Behavior and Consolidation Mechanism of Vanadium-Titanium Magnetite Pellets

High-quality oxidized pellets are the basis to achieve high-efficiency utilization of vanadium–titanium magnetite (VTM) ores. Bentonite was used as a binder of VTM. The main phase composition of VTM is titanomagnetite and ilmenite. When the amount of bentonite is 1%, the compressive strength and dropping strength of VTM pellets can meet the requirements. To improve metallurgical properties, the pellets need to be roasted. The best conditions for roasting are as follows: calcination temperature of 1523 K and a calcination time of 20 min. The consolidation mechanism, phase transformation, and crystal structure transformation of VTM in the process of oxidation roasting are also explained.

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Coal-Based Reduction and Magnetic Separation Behavior of Low-Grade Vanadium-Titanium Magnetite Pellets

Minerals ◽

10.3390/min7060086 ◽

2017 ◽

Vol 7 (6) ◽

pp. 86 ◽

Cited By ~ 7

Author(s):

Gongjin Cheng ◽

Zixian Gao ◽

Mengyang Lv ◽

He Yang ◽

Xiangxin Xue

Keyword(s):

Magnetic Separation ◽

Low Grade ◽

Magnetite Pellets ◽

Vanadium Titanium ◽

Separation Behavior ◽

Titanium Magnetite

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Study on the Improvements of Reduction Swellability and Low Temperature Reduction Disintegration of Vanadium-Titanium Magnetite Oxidized Pellets

4th International Symposium on High-Temperature Metallurgical Processing ◽

10.1002/9781118663448.ch62 ◽

2013 ◽

pp. 509-516 ◽

Cited By ~ 1

Author(s):

Yufeng Guo ◽

Jianfeng Zhou ◽

Tao Jiang ◽

Feng Chen ◽

Xiaolei Song ◽

...

Keyword(s):

Low Temperature ◽

Temperature Reduction ◽

Oxidized Pellets ◽

Vanadium Titanium ◽

Titanium Magnetite ◽

Low Temperature Reduction

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Crystal structure, thermodynamics, and crystallization of bio-based polyamide 56 salt

CrystEngComm ◽

10.1039/d0ce00198h ◽

2020 ◽

Vol 22 (18) ◽

pp. 3234-3241 ◽

Cited By ~ 1

Author(s):

Pengpeng Yang ◽

Xiaoqiang Peng ◽

Sen Wang ◽

Dong Li ◽

Ming Li ◽

...

Keyword(s):

Crystal Structure ◽

Textile Industry ◽

Structure Transformation ◽

High Quality ◽

Crystal Structure Transformation

Polyamide 56 is regarded as one of the most promising materials for the textile industry. This report gives the crystallization route of high-quality polyamide 56 monomers, and its crystal structure, transformation behaviors, and solubility.

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Effect of Calcium Oxide on the Crushing Strength, Reduction, and Smelting Performance of High-Chromium Vanadium–Titanium Magnetite Pellets

Metals ◽

10.3390/met7050181 ◽

2017 ◽

Vol 7 (5) ◽

pp. 181 ◽

Cited By ~ 11

Author(s):

Gongjin Cheng ◽

Zixian Gao ◽

He Yang ◽

Xiangxin Xue

Keyword(s):

Calcium Oxide ◽

Strength Reduction ◽

Crushing Strength ◽

High Chromium ◽

Magnetite Pellets ◽

Vanadium Titanium ◽

Titanium Magnetite

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Effect of diboron trioxide on the crushing strength and smelting mechanism of high-chromium vanadium–titanium magnetite pellets

International Journal of Minerals Metallurgy and Materials ◽

10.1007/s12613-017-1515-1 ◽

2017 ◽

Vol 24 (11) ◽

pp. 1228-1240 ◽

Cited By ~ 2

Author(s):

Gong-jin Cheng ◽

Zi-xian Gao ◽

He Yang ◽

Xiang-xin Xue

Keyword(s):

Crushing Strength ◽

High Chromium ◽

Magnetite Pellets ◽

Vanadium Titanium ◽

Titanium Magnetite

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Non-Isothermal Gas-Based Direct Reduction Behavior of High Chromium Vanadium-Titanium Magnetite Pellets and the Melting Separation of Metallized Pellets

Metals ◽

10.3390/met7050153 ◽

2017 ◽

Vol 7 (5) ◽

pp. 153 ◽

Cited By ~ 8

Author(s):

◽

...

Keyword(s):

Direct Reduction ◽

Reduction Behavior ◽

High Chromium ◽

Melting Separation ◽

Magnetite Pellets ◽

Vanadium Titanium ◽

Metallized Pellets ◽

Isothermal Gas ◽

Titanium Magnetite

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Isothermal reduction behavior and kinetics of Russian high-chromium vanadium-titanium magnetite pellets under gas atmospheres of CO–CO2–N2 and CO–N2 at 873 K–1173 K

Energy Sources Part A Recovery Utilization and Environmental Effects ◽

10.1080/15567036.2020.1795309 ◽

2020 ◽

pp. 1-18

Author(s):

Gongjin Cheng ◽

Xuefei Zhang ◽

Zixian Gao ◽

He Yang ◽

Xiangxin Xue

Keyword(s):

Reduction Behavior ◽

High Chromium ◽

Isothermal Reduction ◽

Magnetite Pellets ◽

Vanadium Titanium ◽

Kinetics Of ◽

Titanium Magnetite

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Effect of Basicity on Sintering Behavior and Metallurgical Properties of High-Chromium Vanadium-Titanium Magnetite

Metals ◽

10.3390/met10050569 ◽

2020 ◽

Vol 10 (5) ◽

pp. 569

Author(s):

Liheng Zhang ◽

Zixian Gao ◽

Songtao Yang ◽

Weidong Tang ◽

Xiangxin Xue

Keyword(s):

Sintering Behavior ◽

High Chromium ◽

Softening Behavior ◽

Comprehensive Index ◽

Opposite Trend ◽

Melting Properties ◽

Vanadium Titanium ◽

Disintegration Index ◽

Index Value ◽

Titanium Magnetite

Basicity has an important effect on the behavior of high-chromium vanadium-titanium magnetite (HCVTM) sinter. The effect of basicity on sintering, reduction, and softening-melting properties was investigated in an experiment-scale sinter pot. The results showed that with the basicity increasing from 1.7 to 2.5, the vertical sinter speed, the productivity, the particle size, the reduction disintegration index (RDI), and the reducibility index (RI) increased. The yield increased first and then decreased, while the tumble index (TI) had the opposite trend. The perovskite content increased first and then stabilized, and the silico-ferrite of calcium and aluminum (SFCA) increased from the basicity of 2.3. The HCVTM sinter had a better tendency of the softening behavior with the basicity increase. In addition, the melt droplet comprehensive index S increased, which indicated that the increase in basicity negatively affected the droplet performance. As the basicity increased, the comprehensive index value increased. Considering the adverse effect of basicity on softening-melting properties, the best recommended value is 2.3.

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