Vanadium titanium äripark lisab energiasalvestust
Selective nitridation-corrosion process to recover vanadium, titanium, chromium, and iron from vanadium …
Semantic Scholar extracted view of "Selective nitridation-corrosion process to recover vanadium, titanium, chromium, and iron from vanadium slag." by Qingqing Hu et al. DOI: 10.1016/j.jenvman.2022.116604 Corpus ID: 253192347 Selective nitridation-corrosion ...
Preparation of full tailings-based foam ceramics and auxiliary foaming effect of vanadium-titanium …
In the system of CaO-Al2O3-SiO2 phase diagram, using vanadium-titanium magnetite tailings (VTMT), feldspar tailings (FT), and kaolinite-type pyrite tailings (KTPT) as raw materials, the foam ceramics have been prepared by introducing SiC as foaming agents.
Research Status and Prospect of Vanadium Extraction from Vanadium …
： The process of vanadium extraction from vanadium-titanomagnetite was described systematically in this paper.The methods of direct vanadium extraction,vanadium extraction from vanadium slag and steel slag were mainly introduced.The advantages and ...
Preparation and Modification of Heterogeneous Vanadium-Titanium-Based Catalysts …
Abstract Vanadium-titanium-based catalysts are among the most widely used industrial catalysts. This article reviews the progress in research of preparation methods and modification measures of heterogeneous vanadium-titanium-based catalysts. Some traditional and novel preparation methods of vanadium-titanium-based catalysts are …
Relationship between the Phases, Structure, MgO Migration and the Reduction Performance of the Pre-oxidized Vanadium-titanium …
Vanadium-titanium magnetite (VTM) ore preserved in Panzhihua district (Sichuan, China) accounts for 95% of the total resource in China and a quarter of that in the world,1) which is a good source of the iron, vanadium, titanium.2) Currently, blast furnace (BF) is still ...
Thermodynamic Analysis of the Reduction of Vanadium-titanium …
Vanadium-titanium magnetite (VTM) has a high comprehensive utilization value. The gas-based reduction process combined with the electric furnace melting process has the advantages of a high recovery rate of precious metal elements in VTM, low cost, high-energy efficiency, and low environmental pollution.
Reduction of chengde vanadium titanium magnetite concentrate …
Vanadium titanium magnetite (VTM) is a multi-metal composite of metal minerals with extensive utilization value because it is a principal carrier of iron, vanadium, and titanium [1,2]. VTM exhibits a dense structure and complex interactions; thus, directly extracting valuable metals from it is challenging.
Strategy and Technical Progress of Recycling of Spent Vanadium-Titanium …
Selective catalytic reduction denitration technology, abbreviated as SCR, is essential for the removal of nitrogen oxide from the flue gas of coal-fired power stations and has been widely used. Due to the strong demand for energy and the requirements for environmental protection, a large amount of S …
High-Temperature Interactions Between Vanadium-Titanium …
The high-temperature interactions between vanadium-titanium magnetite carbon composite hot briquettes (VTM-CCBs) and pellets were systematically investigated under simulated blast furnace conditions with respect to the reduction behavior, softening–melting–dripping characteristics, gas permeability, and Ti(C, N) precipitation …
Present Status and Development of Comprehensive Utilization of Vanadium-Titanium Magnetite …
There is an abundance of vanadium-titanium magnetite in Panzhihua, China, which contains more than 8.73 × 108 tons of TiO2 accounting for 90.6% of the national reserves. To fully utilize Panzhihua titanium resources, many processes were proposed. The...
Effects of Extracted-Vanadium Residue and MgO on the Basic Sintering Characteristics of High-Chromium Vanadium-Titanium …
DOI: 10.1016/j.jmrt.2022.01.144 Corpus ID: 246756467 Effects of Extracted-Vanadium Residue and MgO on the Basic Sintering Characteristics of High-Chromium Vanadium-Titanium Magnetite Sea sand vanadia-titania magnetite is difficult to pelletize, and it is ...
Present Status and Development of Comprehensive Utilization of Vanadium-Titanium …
of Vanadium-Titanium Magnetite Shiju Zhang, Songli Liu, Wenhui Ma, Kuisong Zhu, Li Cao and Yongnian Dai Abstract There is an abundance of vanadium-titanium magnetite in Panzhihua, China, which contains more than 8.73 108 tons of TiO 2 accounting for 90 ...
New Multicomponent Optimization Scheme for Equiatomic Vanadium–Titanium …
We present a new multicomponent structure prediction method named MRS-Swap searching, which is inspired by space symmetry and swap of different atomic species. For the pure titanium cluster, a new ground-state structure of the Ti20 cluster with higher symmetry relative to a previous study was found by our method. Based on the structural …
Optimal Process Parameters for Direct Carbothermal Reduction of Vanadium–Titanium …
Through direct reduction, the transformation process of iron oxide in vanadium–titanium magnetite is Fe 3 O 4 → iron oxide → Fe, and the transformation process of titanium–iron oxide is Fe 9 TiO 15 → Fe 2.75 Ti 0.25 O 4 → Fe 2.5 Ti 0.5 O 4 → iron titanate →
High-Efficiency Smelting Separation of Vanadium–Titanium …
Efficient utilization of vanadium–titanium magnetite can be achieved by high-temperature pyrometallurgical smelting separation of the material. The fusibility of vanadium–titanium magnetite during reduction and smelting reflects the difficulty of smelting separation. In this study, the direct reduction of iron obtained from the carbothermal reduction of …
Ultrasonic assisted dispersive liquid-liquid microextraction …
Gallium accounted for about 0.0019% in vanadium titanium magnetite in Panzhihua, Sichuan, China, and it would be up to 0.012–0.014% in concentrate vanadium titanium magnetite [2]. The shortage of gallium resources will be alleviated effectively if we can make full use of gallium in vanadium titanium magnetite.
Relationship between the Phases, Structure, MgO Migration and the Reduction Performance of the Pre-oxidized Vanadium-titanium …
Vanadium-titanium magnetite (VTM) ore preserved in Panzhihua district (Sichuan, China) accounts for 95% of the total resource in China and a quarter of that in the world,1) which is a good source of the iron, vanadium, titanium.2) Currently, blast furnace (BF) ...
Reduction mechanism of high-chromium vanadium–titanium …
The reduction of high-chromium vanadium–titanium magnetite as a typical titanomagnetite containing 0.95wt% V2O5 and 0.61wt% Cr2O3 by H2–CO–CO2 gas mixtures was investigated from 1223 to 1373 K. Both the reduction degree and reduction rate increase with increasing temperature and increasing hydrogen content.
Contrasted speciation distribution of toxic metal(loid)s and microbial community structure in vanadium-titanium …
and the microbial community in vanadium-titanium (V-Ti) magnetite tailing profiles derived from dry and wet stockpiled methods. In wet tailings, the bioavailability of Cr, Cu, Mn, Ni, V, and Zn was higher than that in dry tailings as identified by BCR sequential ...
SHRIMP zircon U-Pb dating of the Xiaohongshan vanadium-titanium …
The Xiaohongshan vanadium titanium magnetite deposit is a medium-sized deposit discovered in recent years in Beishan area of Inner Mongolia. It is located on the northern margin of the Beishan rift zone, which is on the northern margin of the Dunhuang- Alxa massif on the southern side of the Hongtoushan-Ertuoshan fault. The ore-bearing gabbro …
Optimized magnetic separation for efficient recovery of V and Ti enriched concentrates from vanadium-titanium magnetite …
Since vanadium exists in ilmenite (see Fig. 1 and Table 2), the rapid increase of titanium grade and recovery rate (i.e., high phase content of ilmenite) at a high magnetic intensity of 0.8 T facilitated the vanadium recovery to increase significantly.
High electrochromic performance of co-sputtered vanadium–titanium oxide as a counter electrode …
This study examined the material and electrochromic properties of vanadium–titanium oxides (V–Ti oxides) as a counter electrode material in electrochromic devices. These oxides were deposited on an ITO substrate using a …
Reaction mechanism analysis of the TiO 2 in vanadium
In the paper, the titanium slag was researched on, one iron and steel enterprise BF slags were detected and analysis by Scanning Electron Microscope (SEM), Energy Disperse Spectroscopy (EDS) and X - Ray Diffraction (XRD), then the CaO·FeO·2SiO2 and
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