1. Introduction. China is rich in titanium resources, most of which are stored in Sichuan province in the form of vanadium‑titanium magnetite ore (Du, …
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In this study, a clean pellet production method of calcium roasting and sulfuric acid leaching of vanadium from vanadium and titanium magnetite concentrates is proposed, which can effectively …
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A novel process for the extraction of iron, titanium, vanadium, and chromium from high-chromium vanadium-bearing titanomagnetite concentrates is proposed. This process involves several steps: partial reduction of the concentrates, magnetic separation, hydrochloric acid leaching of the titanium-bearing tailing, and …
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Besides the vanadium–titanium magnetite, stone coal is another important vanadium-bearing resource in China and the vanadium extraction from stone coal is attracting increasing attention (Bao et al., 2009). 2. Stone coal and vanadium extraction from stone coal in China2.1. The nature of stone coal
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Vanadium-bearing titanomagnetite is a very important mineral resource of vanadium, titanium and iron. Currently, the major process for smelting vanadium-bearing titanomagnetite involves firstly extracting iron and then extracting vanadium of slag by sodium salt roasting and water leaching technologies [1,2,3,4,5,6,7,8], which causes …
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In the process of extracting vanadium and titanium, it was inevitable that iron ions would be co-extracted or mechanically entrained into the organic phase. Hence, it is necessary to scrub the organic phase to remove impurity ions before selectively stripping vanadium and titanium. Usually, dilute sulfuric acid can scrub the divalent iron in ...
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Due to depleted primary sources, environmental concerns about terrestrial extraction, and higher demand, recycling vanadium from alternative sources, such as …
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Vanadium slag is a strategic vanadium extracting source, which is produced from the hot-metal treatment prior to the basic oxygen steelmaking (BOS) or during the converter steelmaking process by using vanadium–titanium magnetite (VTM) ore [1,2].This VTM ore has been extensively found in different countries, e.g., South …
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The leaching rates of vanadium, titanium and iron (η) was defined as follows: (1) η = w × c 1 × v 1 m 0 × β × 100 % where c 1 was the concentrations of vanadium, titanium and iron. v 1 were the volume of leaching solution. w was the dilution factor. m 0 and β were the quality of vanadium titanomagnetite concentrate and grade …
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A new process of extracting titanium from vanadium–titanium magnetite (VTM) in the Panxi area in Sichuan, China is introduced in this work. Various experiments, including reduction–magnetic separation, leaching and hydrolyzing experiments, are carried out. The results show that the optimum conditions for leaching experiments are an …
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Vanadium-titanium magnetite is a complex symbiotic iron ore resource composed of iron, vanadium, titanium and other metals, which is one of the most important iron ore resources in China [1,2,3,4].Titanium, as an indispensable metal raw material for the modern industry and advanced science and technology, is mostly …
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The invention discloses a method for extracting titanium from vanadium titano-magnetite, which comprises the following steps of adding a sodium or potassium salt additive in the reduction smelting of an iron ore concentrate electric furnace to obtain molten iron and titanium-containing slag, wherein: vanadium and iron are reduced into molten iron, and …
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1. Introduction. Vanadium (V) and titanium (Ti) are important strategic metals, which are widely used in metallurgical industry, chemical industry, machinery manufacturing, battery, aerospace, etc. [[1], [2], [3], [4]].As a representative resource for extracting V and Ti, vanadium–titanium magnetite (VTM) is a polymetallic symbiotic …
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ABSTRACT. In this study, a new vanadium extraction process from vanadium titano-magnetite(VTM) featuring calcification roasting and (NH 4) 2 C 2 O 4 …
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Black shale represents a unique and strategic vanadium resource in China, accounting for ~ 90% of the nation's vanadium reserves. The complex forms of occurrence of vanadium in black shale, particularly its incorporation into aluminosilicate mica via isomorphism, render it tightly bound and challenging to extract. Against the backdrop of …
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The blast furnace smelting process for vanadium titania-magnetite is shown in Fig. 1.The low concentration of TiO 2 with about 1.5 wt.% in the primary mineral can be enriched into titania-bearing slag with more than 20 wt.% TiO x, 29,30 as shown by the composition range in Table I; other oxides including CaO, MgO, SiO 2, and Al 2 O 3 are …
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1. Introduction. Vanadium is an important transition metal used in the manufacture of high strength steel alloys, vanadium redox flow batteries, and catalysts [[1], [2], [3], [4]].In particular, in modern energy storage systems, a lot of demand is expected for vanadium redox flow batteries because they are relatively stable and have a better …
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Vanadium improves the strength of titanium, and vanadium-titanium alloys have been used in the construction of aircraft. Alloys of vanadium, chromium and titanium also have suitable properties for the construction of nuclear reactors. ... 2019), the alkaline carbonate leaching process for uranium is also effective for vanadium …
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As the majority of vanadium is added to steel, the annual demand for vanadium tends to follow the annual demand for steel (Leont and Shavrin, 2000, Raja, 2007).Stricter regulations around the use of high-strength steel have however increased the demand for vanadium as a steel additive (Anon, 2011).The remainder of vanadium is …
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The increasing demand for vanadium worldwide has led to the need to guarantee sustainable vanadium production. The smelting process of vanadium and titanium magnetite produces vanadium-bearing steel slag, a key material for vanadium extraction. Herein, vanadium production, consumption, and steel slag properties are …
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The development process and current situation of vanadium extraction from vanadium-titanium magnetite ore were introduced in the paper.The advantages,disadvantages,main process parameters and technical indexes of vanadium extraction process were represented,too.Aiming at the typical disadvantage of present vanadium extraction …
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The recovery of vanadium from titanium tetrachloride tail residue is a resource-efficient and environment-friendly method for treating hazardous vanadium …
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Vanadium-titanium magnetite, vanadium-bearing shale, converter slag, and vanadium-containing spent catalyst are the main raw materials for vanadium extraction. Vanadium-bearing shale is a specific vanadium resource of China. The vanadium reserve in shale is over 6 times more than that of vanadium-titanium magnetite [5].
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According to the Anglo-Norwegian explorer, the award of extraction rights relates to vanadium, titanium and iron ore, all of which are hosted by the norite rock characteristic of the Eigersund area.
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metal oxides, including lithium, vanadium and titanium. The process leaches titanium, vanadium and iron using hydrochloric acid at atmospheric pressure and temperatures below 95°C. Solvent extraction is then used to recover vanadium, titanium pigment and iron from the leach solution. The advantages claimed are low cost, high recovery, no
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At present, almost 88% of the vanadium-containing materials in the world are extracted from vanadium–titanium magnetite [18, 19], with the remaining vanadium …
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vanadium extraction from vanadium–titanium magnetite concentrate. 2. Experimental 2.1. Materials The vanadium–titanium magnetite ore used in the experiment was from Chao-yang, China. After crushing and grinding, the particle size of the ore was 0.074 mm, accounting for 65% of the total particle size.
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1. Introduction. The market supply structure of vanadium (V) has been unbalanced for a long time as a result of extensive demand and shortage of V production [1], [2].V is widely used in national defense, aerospace, battery manufacturing and industrial catalysis [3], however, by weight, V occupies only 0.02% [4] of the earth's crust. V …
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The invention discloses a method for separating and extracting iron, vanadium and titanium from vanadium-titanium magnetite, which comprises the following steps: magnetic separation of raw ore: performing magnetic separation on the vanadium-titanium magnetite to obtain iron-vanadium concentrate and tailings; separating titanium …
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On this basis, Zhang et al. (2015a) further studied the optimal conditions for extracting vanadium from steel slag, and the leaching rate could reach 97.69%. Zhang …
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