Springer Proceedings in Physics, pages 747-758

Study on Current Technology of Vanadium Extraction from Vanadium Titanium Magnetite

Lingen Luo 1, 2
Chongfeng Yue 1, 2
Jianming Pang 1, 2
Yaoxin Song 1, 2
Yanheng Gao 1, 2
Zhimin Zhao 1, 2
Hua Wang 1, 2
JIAQING HE 1, 2
Chuan He 2
Shulan Liu 3
Xianyi Cai 4
Fan Yang 5
Xin Li 6
Show full list: 13 authors
1
 
Resource Application and Alloy Materials Division, China Iron & Steel Research Institute Group, Beijing, China
2
 
Beijing Cisri-Nmt Engineering Technology Co., Ltd., Beijing, China
3
 
College of Physical Science and Technology, Tangshan Normal University, Tangshan, China
4
 
Steelmaking Division, Anhui Shoukuang Dachang Metal Material Co., Ltd., Lu’an, China
5
 
Technology Center of Xinyu Iron & Steel Group Co., Ltd., Xinyu, China
6
 
Special Steel Company, Masteel, Maanshan, China
Publication typeBook Chapter
Publication date2024-09-30
SJR0.135
CiteScore0.4
Impact factor
ISSN09308989, 18674941
Abstract
Vanadium is an important strategic metal with high application value. In this paper, various common vanadium extraction methods of vanadium titanium magnetite are systematically summarized, the advantages and disadvantages of various methods are fully analyzed and compared, and the application status of various vanadium extraction methods is described. Based on the summary and analysis of the current vanadium extraction process, the development prospect of vanadium extraction from vanadium titanium magnetite was prospected, valuable suggestions were provided for the continuous improvement of the subsequent process, and a solid foundation was laid for the benign development of the subsequent vanadium extraction process.
Liu W., Fang Y., Ke J.
2021-08-01 citations by CoLab: 1 Abstract  
Panzhihua-Xichang region is one of the most abundant areas of mineral resources in China.Vanadium-titanium magnetite of this region is a typical metal-associated iron ore resource with a comprehensive utilization value. Institute of Chemical Metallurgy, Chinese Academy of Sciences (ICM CAS, now Institute of Process Engineering, IPE CAS) conducted an important comprehensive utilization research mission and supported the construction of Panzhihua iron and steel industry base. CAS academician Yap Chu-Phay, the first director of ICM CAS, has been engaged in comprehensive utilization research for a long time. At the National Science Conference in 1978, comprehensive utilization research on Panzhihua mineral resources was listed as one of the three major research centers in China. As deputy premier of the State Council, Fang Yi distributed related scientific and technological tasks to many institutes, universities, and enterprises of China. As national strategic strength in science and technology, this paper analyses the important functions of CAS in utilizing the major mineral resources in China through studying the history of the cooperation of ICM CAS and Panzhihua (1958—2001). From this case study, the paper reflects how Chinese state-run research institutions like IPE CAS have conducted scientific and technological research to meet major national strategic needs since its foundation in 1958.
Wen J., Jiang T., Xu Y., Cao J., Xue X.
2019-03-01 citations by CoLab: 80 Abstract  
A novelty process based on sodium salt roasting-(NH4)2SO4 leaching was proposed to extract vanadium and chromium in high chromium vanadium slag (HCVS). V2O5 and Cr2O3 was then prepared. The effects of roasting and leaching conditions on vanadium and chromium extraction behavior were studied systematically and completely. Vanadium precipitation conditions and chromium reduction conditions were optimized further. 94.6% vanadium and 96.5% chromium were extracted when HCVS and Na2CO3 were mixed in the molar ratio of n(Na2CO3)/n(V2O3 + Cr2O3) of 2.5, then leached in 30 g/L (NH4)2SO4 solution. 94.8% vanadium was precipitated as ammonium polyvanadate (APV) just by adjusting the leaching liquid pH at 4.5, almost all chromium was remained in liquid, achieving the efficient separation of vanadium and chromium. Chromium was then recovered by reduction and precipitation. More than 99% chromium was reduced when Na2S2O5 was added in m(Na2S2O5)/m[Cr(VI)] above 3. By roasting the deposits of vanadium and chromium respectively, 91.49% V2O5 and 89.89% Cr2O3 were obtained. The supernatant after vanadium and chromium extraction containing NH4+ could be recycled as the new leaching medium with some new (NH4)2SO4 added, which greatly reduced the discharge of ammonia-nitrogen wastewater and made the whole process more environmentally friendly.
Zhao W., Chu M., Wang H., Liu Z., Tang J., Ying Z.
Powder Technology scimago Q1 wos Q2
2019-01-01 citations by CoLab: 28 Abstract  
The reduction behavior of a new type of blast furnace burden named vanadium‑titanium magnetite carbon composite hot briquette (hereinafter abbreviated as VTM-CCB), including fraction of reaction (f), reduction shrinking, crushing strength after reduction, phase transformation of valuable elements, and softening-melting-dripping behavior, were investigated with simulating blast furnace conditions in laboratory in this article. The reduction process of VTM-CCB could be divided into four stages. The devolatilization of the coal and the reduction of magnetite to wustite mainly occur successively in the first two stages. In the third stage, the reduction rate is much higher than that in the second stage due to the high carbon gasification rate. The reduction of Ti-bearing iron oxides occurs in the final stage. The shrinking of VTM-CCB samples is caused by the removal of carbon and oxygen and the suppression of the growth of iron whiskers during the reduction of wustite to metallic iron. The crushing strength of VTM-CCB after reduction is found to decrease from 1800 N to 600 N correspondingly with increasing temperature from 600 °C to 1100 °C. The loss of the crushing strength correlates to the pyrolysis of the coal, the carbon gasification, and the reduction of iron oxides. The phase transformation of valuable elements during reduction could be described as follows: Fe3O4 → FeO → Fe; Fe2.75Ti0.25O4 → Fe2.5Ti0.5O4 → (Fe2TiO4) → FeTiO3 → (FeTi2O5) → TiO2. The softening-melting-dripping behavior and permeability of mixed burden is improved obviously with charging a certain amount of VTM-CCB. However, the precipitation of Ti(C,N) would deteriorate the dripping behavior of packed bed when VTM-CCB charging ratio exceeds 20%.
Ji Y., Shen S., Liu J., Xue Y.
Journal of Cleaner Production scimago Q1 wos Q1 Open Access
2017-04-01 citations by CoLab: 73 Abstract  
The traditional industrial practice for extracting vanadium from vanadium slag involves a Na 2 CO 3 -Na 2 SO 4 -NaCl-added pellet roasting at 800 °C followed by a water leaching. Some chlorine and hydrogen chloride are emitted by this process. About 80% of vanadium and 5% of chromium can be extracted in this case. The disposal of this leaching residue containing high contents of chromium and vanadium is still an unsolved environmental problem so far. A complete extraction of vanadium and chromium from vanadium slag might be an ultimate solution. In order to efficiently extract vanadium from vanadium slag, an innovative NaOH-added pellet was applied in this work to replace traditional Na 2 CO 3 -Na 2 SO 4 -NaCl-added pellet. It was found that the volume of NaOH-added pellet increased by 144% and many cavities were formed spontaneously throughout the pellet during the roasting at 700 °C. A solid phase (dry slag minerals), a liquid phase (molten liquid drops of NaOH with low viscosity) and a gas phase (O 2 ) were involved in a three-phase reaction occurred inside the pellet. The spontaneously formed cavities created good kinetic conditions for the three-phase reaction. The V extraction was thus increased from traditional 80% at 800 °C to current 99% at 700 °C. The V extraction was increased by 39% when a NaOH-added pellet sample was used instead of a NaOH-added powder sample. The roles of porous pellet and liquid NaOH drops were explored. The V extraction dramatically increased with increasing temperature in the temperature range of 400 °C to 600 °C and reached a maximum at 700 °C. The V extraction dramatically increased with time within the first 15 min at 700 °C. The optimal roasting temperature, time and R(Na/Cr) value for the V extraction were 700 °C, 15 min and 7.67, respectively. The V extraction was 99.2% under the optimal conditions. The cooling rate of the roasted pellet had no significant effect on V extraction. The vanadium from the vanadium slag was mainly contained in a vanadium-containing spinel phase (Mn, Fe)(V, Cr, Ti) 2 O 4 . The oxidation of V 3+ probably went through the following process: (Mn, Fe)(V, Cr, Ti) 2 O 4 →(Cr 0.15 V 0.85 ) 2 O 3 →NaVO 2 →Na 3 VO 4 . This process avoided the emission of toxic gas.
Huang K., Li X., Liu S., Tan N., Chen L.
Renewable Energy scimago Q1 wos Q1
2008-02-01 citations by CoLab: 176 Abstract  
Principle and characteristics of vanadium redox flow battery (VRB), a novel energy storage system, was introduced. A research and development united laboratory of VRB was founded in Central South University in 2002 with the financial support of Panzhihua Steel Corporation. The laboratory focused their research mainly on the selection and preparation of electrode materials, membrane material and modification, stable concentrated electrolyte producing approach, test cell configuration design and optimization. Some relevant foundation problems, such as state of vanadium in sulfurous acid with various additives, the difference of electrochemical reaction rate in anode and in cathode, the crossover of vanadium ions and so on, have been emphasized. The details of these studies have been given and discussed. A 5 kW VRB stack was fabricated in the laboratory and its performances, especially electrochemical performance such as voltage efficiencies, energy efficiencies, and durability, were fully tested. The results will be shown in the talk. The key technologies of developing VRB, such as to improve the activity of its electrode materials, the stability of electrolyte and selectivity of separator, were also discussed. In addition, the research progresses in other laboratories in China were briefly introduced.
Monakhov I.N., Khromov S.V., Chernousov P.I., Yusfin Y.S.
Metallurgist scimago Q3 wos Q4
2004-07-01 citations by CoLab: 24

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