Property Investigations of Low-Grade Vanadium-Titanium Magnetite Pellets with Different MgO Contents

2018 ◽  
Vol 89 (6) ◽  
pp. 1700543 ◽  
Author(s):  
Zixian Gao ◽  
Gongjin Cheng ◽  
Xiangxin Xue ◽  
He Yang ◽  
Peining Duan
Keyword(s):  
Low Grade ◽  
Magnetite Pellets ◽  
Vanadium Titanium ◽  
Titanium Magnetite

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

Minerals ◽  
2017 ◽  
Vol 7 (6) ◽  
pp. 86 ◽  
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

Experimental Research on Comprehensive Recovery of Iron and Phosphorus from the Low Grade Vanadium-Titanium Magnetite Ore

2012 ◽  
Vol 549 ◽  
pp. 478-481 ◽  
Author(s):  
Wei Zhi Wang ◽  
Li Ping Chen ◽  
Chun Guang Yang
Keyword(s):  
Experimental Research ◽  
Mineral Resources ◽  
Low Grade ◽  
Iron Recovery ◽  
Iron Concentrate ◽  
Low Intensity ◽  
Magnetite Ore ◽  
Vanadium Titanium ◽  
Comprehensive Recovery ◽  
Titanium Magnetite

An experimental research on comprehensive recovery of iron and associated apatite from a low grade vanadiferous titanomagnetite ore with high phosphorus was carried out. The results showed that using the technological flowsheet of “low -intensity magnetic separation-flotation”, not only the magnetite can be effectively separated, but the associated apatite in the mineral resources can also be satisfactorily recovered. An iron concentrate with a TFe grade of 64.81% and iron recovery of 58.04% and a high-quality phosphorus concentrate of 33.50% P2O5 with a yield of 92.18% is obtained．

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

Crystals ◽  
2021 ◽  
Vol 11 (2) ◽  
pp. 188
Author(s):  
Weibin Chen ◽  
Zhaoqi Dong ◽  
Yang Jiao ◽  
Lili Liu ◽  
Xidong Wang
Keyword(s):  
High Efficiency ◽  
Sintering Behavior ◽  
Structure Transformation ◽  
Calcination Time ◽  
High Quality ◽  
Oxidized Pellets ◽  
Crystal Structure Transformation ◽  
Magnetite Pellets ◽  
Vanadium Titanium ◽  
Titanium Magnetite

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.

scholarly journals Characterization and Pre-Concentration of Low-Grade Vanadium-Titanium Magnetite Ore

Minerals ◽  
2017 ◽  
Vol 7 (8) ◽  
pp. 137 ◽  
Author(s):  
Chengbao Xu ◽  
Yimin Zhang ◽  
Tao Liu ◽  
Jing Huang
Keyword(s):  
Low Grade ◽  
Magnetite Ore ◽  
Vanadium Titanium ◽  
Titanium Magnetite

scholarly journals Effect of Humic Acid Binder on Oxidation Roasting of Vanadium–Titanium Magnetite Pellets via Straight-Grate Process

Crystals ◽  
2021 ◽  
Vol 11 (11) ◽  
pp. 1283
Author(s):  
Yihui Yi ◽  
Guanghui Li ◽  
Pengxu Cao ◽  
Xin Zhang ◽  
Yongkang Zhang ◽  
...  
Keyword(s):  
Compressive Strength ◽  
Humic Acid ◽  
Production Efficiency ◽  
Pilot Scale ◽  
Composite Binder ◽  
Preheating Temperature ◽  
Magnetite Pellets ◽  
Vanadium Titanium ◽  
Titanium Magnetite ◽  
Bentonite Binder

The oxidation roasting of vanadium–titanium magnetite (VTM) pellets with a new composite binder was investigated using a pilot-scale straight-grate. The evolution of the chemical and phase composition, the compressive strength, and the metallurgical properties of the fired VTM pellets were investigated. Under a preheating temperature of 950 ∘C, a preheating time of 18 min, a firing temperature of 1300 ∘C, and a firing time of 10 min, the compressive strength of the fired pellets was as high as 2344 N per pellet. The fired pellets mainly consisted of hematite, pseudobrookite, spinel and olivine. The total iron content of the fired pellets was 0.97% higher using 0.75 wt% humic acid (HA) binder instead of 1.5 wt% bentonite binder. These properties are beneficial for the production efficiency and energy efficiency of their subsequent use in blast furnaces. Moreover, both the softening interval and the softening melting interval of the HA binder pellets were narrower than those of the bentonite binder pellets, conducive to the smooth and successful smelting of the VTM pellets in a blast furnace.

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