Effect of Return Fines Embedding on the Sintering …
Results indicate that the productivity, yield, flame front speed, and tumble index of the vanadium titanium magnetite sintering process are all increased to a certain extent after embedding different …
Vanadium in soil-plant system: Source, fate, toxicity, and
Vanadium speciation in soil. Vanadium speciation plays an important role in environmental risk assessment and remediation strategies for V-contaminated soils and …
Study on the High-Temperature Sintering Characteristics and Sintering
The sea sand vanadium titanomagnetite has the problems of coarse particles, difficult agglomeration, and poor sintering performance. It is difficult for iron and steel enterprises to use it as an ironmaking raw material in large quantities. In this work, different methods were adopted to optimize the high-temperature sintering …
Effect of Preformed Calcium Ferrite Addition on Sintering …
impurities such as aluminum, vanadium, and mag-nesium occurring as solid solution components within the lattice.1,2 Thus far, VTM has mainly been used as a material in the blast furnace–basic oxygen furnace process. In this process, most iron and some vanadium are reduced to hot metal and further treated to recover iron and vanadium,
Article Study on Sintering Characteristics of Ultra Poor …
shortage, the acid PVTM sinter (R = 0.50) could be produced by the surplus from the sinter plant. This replaced a part of the acid pellet and the burden structural model of the blast furnace smelting
Preparation, Sintering Behavior and Consolidation Mechanism of Vanadium
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 …
Life cycle assessment of the comprehensive utilisation of …
This study describes the life cycle assessment (LCA) of the comprehensive utilisation of vanadium titano-magnetite (VTM) through the integrated steel production …
Gallium and vanadium extraction from red mud of Turkish alumina
1. Introduction. Red mud is the solid waste product of Bayer process for the production of alumina from bauxite ores (Liu and Li, 2015).Annually, approximately 120 million tonnes of red mud is generated with an estimated global inventory of over 3 billion tonnes (Power et al., 2011).For possible metal recovery techniques from bauxite or red …
Minerals | Free Full-Text | Influence of Sea Sand on …
This study explores the feasibility of Indonesian sea sand in replacing V–Ti–Fe concentrate for sintering. The influence of different additive proportions of Indonesian sea sand on sintering index and …
Life cycle assessment of the comprehensive utilisation of vanadium
The scope of this study includes the preparation of auxmary materials (i.e., lime production, coal washing and coke production) and steel manufacturing (i.e., ore mining and dressing, iron ore sintering and pelleting, BF iron-making and BOF steel-making) to valuable element extraction (i.e., ilmenite production and vanadium pentoxide production).
Alumina and Silica Produced by Chlorination of Power Plant Fly …
Coal-fired power plants in developed countries produce large volumes of ... germanium, vanadium, tungsten, niobium, titanium, zirconium and some others. For example, up to 40–67% of titanium, 45–77% ... hydrochloric, nitric or hydrofluoric), thermal (sintering with limestone and soda ash), thermal reducing, electrothermal melting ...
Analysis of Vanadium-Bearing Titanomagnetite Sintering Process …
The sintering strand of Plant A is 4500 mm in width and 700 mm in height; the hearth layer on the sintering strand is about 70-80 mm high; quasi-par- ticles are fed onto the hearth layer till the bed height reaches 700 mm. Intensified sifting feeder is used to obtain particle size segregation on the sintering strand, so that better sintering ...
Metals | Free Full-Text | Effect of Basicity on Sintering Behavior …
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 …
Analysis of Vanadium-Bearing Titanomagnetite Sintering Process …
Many problems appear in the sintering process of vanadium-bearing titanomagnetite, such as high energy consumption and low productivity; sinter quality is also very poor for its low tumble strength and high reduction degradation.
Vanadium recovery as FeV from petroleum fly ash
Yongxiang Yang. Petroleum fly ash is a solid residue generated in the power plants using crude oil and petroleum coke as fuel, which is a valuable resource for vanadium. Stricter environmental ...
Extraction of vanadium from V-bearing titanoferrous magnetite by
The typical chemical composition of the raw materials used for sintering by Chengsteel, China, is shown in Table 5.3.In accordance with the desired composition, the mixture contains 39% V-containing iron concentrate, 10% marine sand, 5% ordinary iron concentrate, 7.5% pellet return fines, 16% returns of the sintering machine, 4% steel …
The Prediction of Sinter Drums Strength Using Hybrid Machine
The prediction model with the sinter drum strength as the evaluation index was established based on the index data and historical sintering data generated during the sintering process. The regression prediction model in the algorithm of machine learning was applied to the prediction of the strength of the sinter drum. After verifying the …
Experimental Study on Oxygen-Enriched Sintering of Vanadium …
Numerous studies have shown that few bonding-phase minerals are generated during the sintering of vanadium-titanium magnetite, but abundant …
Preparation, Sintering Behavior and Consolidation …
vanadium-titanium magnetite; sintering; crystal; consolidation. 1. Introduction. Vanadium (V), titanium (Ti), and iron …
Minerals | Free Full-Text | Investigations of MgO on Sintering
High-chromium vanadium-titanium magnetite (HCVTM) in the Hongge region has been used as an essential mineral resource in ironmaking. The effects of MgO on sintering performance and metallurgical properties were investigated by sintering pot tests, X-ray diffraction (XRD), and scanning electron microscopy-energy dispersive …
Vanadium–titanium magnetite ore blend optimization for sinter …
Sintering is a non-homogeneous process, and segregation of materials exits more or less in iron sintering bed and they are essential for the sintering process. Therefore, in some region of mixture, the value of CaO content was too small even zero. ... Sintering experiment of high-Cr vanadium and titanium magnetite. J. Northeast. Univ. …
Application status and comparison of dioxin removal
The emissions of dioxins from sintering plants are predominantly gaseous with a maximum concentration of 0.73 ng TEQ/m 3 and a minimum of 0.51 ng TEQ/m 3, ... In addition, introduction of a transition metal into a vanadium-based catalyst as a second-phase catalyst improves the catalyst activity .
Metals | Free Full-Text | Effect of Smelting Time on Vanadium and
Currently, the smelting process of vanadium–titanium magnetite is mainly a blast furnace–converter process [4,8]. However, it was found that the smelting operation and the comprehensive utilization of the V–Ti burden in the blast furnace were seriously affected by its poor tumbler strength compared with that of ordinary sintering [9,10,11 ...
Effect of oxygen enrichment on sintering behavior of high
Abstract. To achieve high-efficiency utilization of complex and unmanageable iron-containing minerals, the effects of oxygen enrichment on productivity, yield, flame …
Treatment of vanadium–titanium magnetite based on composite
Adopting conventional sintering process of vanadium-titanium magnetite concentrates has such problems as low tumbler index and RDI due to the high-TiO2 content, coarse granularity and poor ...
Vanadium in soil-plant system: Source, fate, toxicity, and
Vanadium mainly accumulates in plant roots with very limited translocation to shoots. However, plants such as dog's tail grass and green bean are reported to …
Ferrovanadium
In 1960 the sintering plant was built and the No. 3 blast furnace began operation in 1962. Tola Vanadium Ferrous Metallurgical Corporation is one of the biggest enterprises in Russia for manufacturing vanadium products, with an annual output of 16,000 t (vanadium pentoxide equivalent). They are one of the major international suppliers of ...
Treatment of vanadium–titanium magnetite based on composite
Adopting conventional sintering process of vanadium-titanium magnetite concentrates has such problems as low tumbler index and RDI due to the high-TiO 2 content, coarse granularity and poor hydrophilicity. In this experiment, vanadium-titanium magnetite (VTM) is treated by the composite agglomeration process to prepare blast …
Recovery of vanadium and gallium from solid waste by-products …
Vanadium pentaoxide (98.8% V 2 O 5) was produced by firing polyvanadate precipitate at 560 °C. Chemical and phase compositions of all the solutions and solids products were determined. A process route based on sintering and two-stage of carbonisation was also developed for the treatment of electrofilter dust of calcinations …
Effect of Preformed Calcium Ferrite Addition on Sintering
A new approach is proposed to improve the strength of the vanadium titanium magnetite (VTM) sinter by adding preformed calcium ferrite (CF) to partially substitute the CaO. The effects of the sintering temperature, oxygen partial pressure (pO2), heating time, and substitution ratio of preformed CF on the mineralogy of the VTM sinter …