Titaniferous Magnetites as a Source of Vanadium, …
Over recent years, a lot of work has been undertaken to process lower grade titaniferous (8-16% TiO 2) magnetite deposits to produce vanadium, titanium pigment and iron oxides using …
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Research Progress on Comprehensive Utilization of Vanadium …
At present, the methods of comprehensive utilization of vanadium-titanium magnetite tailings are mainly divided into two categories: tailings reseparation (Valuable metal recycling) and overall utilization. According to the nature and composition of the tailings, in the tailings reseparation uses gravity separation, magnetic separation, flotation, chemical …
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The changing technology trends in processing titaniferous magnetite
Titaniferous magnetite deposits are a significant source of vanadium for use in high-strength steel alloying and other chemical applications as well as producing titanium slag for the chloride production of titanium pigment. Ore beneficiation is practised to generate an iron-based mineral concentrate containing much of the vanadium with low ...
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The Effect of Different Magnetic Separation Procedures of a …
The study focused on the recovery of vanadium from a Korean vanadium-bearing titaniferous magnetite (VTM) ore, examining the behaviors of magnetic separation and Na2CO3 roasting-water leaching. Two concentrates were prepared using single-stage dry magnetic separation and three-step wet magnetic separation, resulting in V2O5 grades of 0.8% and …
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The extraction of vanadium from titanomagnetites and other sources
Unlike other metals such as copper, nickel or zinc, vanadium does not form concentrated deposits. Owing to the similarities between the V 3+ and Fe 3+ cations, vanadium is often found as a minor component of iron minerals. The vanadium mineral coulsonite, FeV 2 O 4 forms series with chromite, FeCr 2 O 4 and magnetite, Fe 3 O 4.Most of the vanadium is …
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The extraction of vanadium from titanomagnetites and other …
A reducing roast process has been shown to be effective for separating iron from vanadium, titanium and chromium in titanomagnetites, enabling the production of separate …
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Characterization and Pre-Concentration of Low-Grade …
follow-up processing. A vanadium-titanium magnetite concentrate with 1.14% V2O5, 22.22% TiO2, 42.51% Fe and a rough concentrate of ilmenite with 16.05% TiO2, 20.77% Fe were obtained from
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Separation and recovery of iron and titanium from oxidized vanadium …
In a typical reduction roasting magnetic separation process, VTM pellets are reduced by coal at high temperature (1200–1300 °C) for 3–4 h after pre-treatment process.Then the reduced pellets are ground to 0.074 μm or 0.044 μm by a ball mill or rod mill device [13].Finally, magnetic product and non-magnetic product are separated under a certain …
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Efficient Extraction of Vanadium from Vanadium–Titanium Magnetite …
In this paper, potassium salt roasting additives were applied to extract vanadium from vanadium–titanium magnetite concentrate. Meanwhile, the mechanisms of potassium salt roasting and acid leaching kinetics were investigated. The results indicate that potassium salt roasting additives are more efficient than sodium and calcium salt and that K2SO4 works best. Under …
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Extraction of vanadium from titanoferrous magnetite: …
V-containing titanoferrous magnetite generally has low Ti and Fe contents, and enrichment to produce V-containing iron concentrate is performed to meet the requirements of …
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Tailings Resource Characteristics and Multipurpose …
This is an essay in the field of mining engineering. Panzhihua is the largest vanadium-titanium magnetite resource base in China. With the development and utilization of vanadium titanium resources, a large number of tailings have been produced, which not only occupies a lot of lands but also useful ingredients are not fully utilized, resulting in resource waste.
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Roasting Followed by Magnetic Separation: A Process for Beneficiation …
Titano-magnetite is an ore of iron and titanium, and is highly magnetic. Magnetite and ilmenite are two major minerals. Ilmenite exhibits various textural dispositions. Widmanstatten and granular exsolution textures are important ones exhibited by the constituent mineral. Reduction roasting followed by two-stage LIMS gives a magnetic concentrate of 65.74% Fe at …
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Mineralogical Characteristics of Baima Vanadium …
The Baima vanadium titanomagnetite deposit, located in the Panzhihua-Xichang (Panxi) metallogenic belt in China, is one of the super-large deposits in the region. The titanomagnetite upgrading process involves …
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Towards sustainable processing of vanadium-bearing titaniferous
Namakwa Sands is a heavy minerals mining and beneficiation business in the Anglo Base Metals Division, and operates along the West Coast of South Africa. ... Panzhihua vanadium titano-magnetite, a ...
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Extraction of Phosphorous from a Phosphorous …
process of V-Ti magnetite resources [15–19]. 2. Materials and Methods 2.1. Sampling The ore samples used in this study were from a low-grade phosphorus-containing vanadium titano-magnetite tailings produced by a concentrator in Miyi region after recovering iron and titanium using magnetic separation and flotation.
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A Multi-step Process for the Cleaner Utilization of Vanadium …
In this process, 41.5% of iron can be recovered in the beneficiation step, and approximately 58% can be recovered in the carbothermic reduction-magnetic separation step. 70.21% of vanadium can be recovered as the vanadium-bearing solution, and 12.95% can be recycled as the ferroalloy. 57.2% of chromium are remained in the vanadium slag through ...
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Fusion Separation of Vanadium-Titanium Magnetite and …
One can observe that the main phase of the calcined vanadium-titanium magnetite pellets is magnetite (Fe 3 O 4), and there are also some vanadium-bearing titanium phases, ilmenite …
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Efficient Extraction of Vanadium from …
In this paper, potassium salt roasting additives were applied to extract vanadium from vanadium–titanium magnetite concentrate. Meanwhile, the mechanisms of potassium salt roasting and acid leaching kinetics were investigated.
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Recovery of TiO2-enriched material from vanadium titano-magnetite …
1. Introduction. Vanadium titano-magnetite (VTM) is a typical resource in China. The reserves of VTM are approximately ten billion tons in the Panzhihua-Xichang region of China in which V and Ti account for 11.6% and 35.2% of the world reserves, respectively (Ping et al., 2011; Wang et al., 2008a; Wang et al., 2008b; Zheng et al., 2016).VTM concentrates has been …
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Influence of different comminution flowsheets on the …
Comparative separation tests of vanadium titano-magnetite (VTM) were conducted in this study by employing a high-pressure grinding roller (HPGR) and a jaw crusher (JC); these were followed by a parallel and stage separation, respectively. ... In the process of ilmenite beneficiation, it is difficult to avoid the production of a certain amount ...
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Studies of Mineralogical Characteristics on Vanadium Titanium Magnetite
The study results provide references to the vanadium titanium magnetite beneficiation process of this mining area. Discover the world's research 25+ million members
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Roasting Followed by Magnetic Separation: A Process for Beneficiation
Titano-magnetite is an ore of iron and titanium, and is highly magnetic. Magnetite and ilmenite are two major minerals. Ilmenite exhibits various textural dispositions.
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A New Process of Extracting Titanium from Vanadium–Titanium Magnetite
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 acid/slag ratio of 4:1, …
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Towards sustainable processing of vanadium-bearing …
Efficient recovery of titanium from titaniferous magnetite ores continues to be a promising, yet unrealised opportunity, despite significant occurrences of titaniferous magnetite deposits worldwide and the existence of established industrial-scale practices. Current smelting processes only recover iron and vanadium, while the titanium is discarded in the waste slag. These slags …
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Overall utilization of vanadium–titanium magnetite tailings …
In recent years, the recycling of waste resources and environmental management in industrial companies have attracted people's attention (Ciarapica et al., 2019).In the Panzhihua area of southwestern China, a large number of vanadium–titanium magnetite tailings (VTMT) are generated in the selection process of iron concentrate (Chen et al., 2016; Sun et al., 2019; …
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CN203123628U
The utility model relates to a vanadium titano-magnetite beneficiation wastewater circulating treatment pond which comprises a concentration pond, a sedimentation pond, a circulation pond and a clean water pond, wherein the upper part of the concentration pond is in a cylindrical shape, and the lower part of the concentration pond is in a reverse cone shape; a water discharge port …
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Preparation, Sintering Behavior and Consolidation …
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 …
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Life cycle assessment of the comprehensive utilisation of vanadium
Since the 2000s, rapid increases in the comprehensive utilisation of VTM have been observed in China. For example, the yield of crude steel derived from VTM was as high as 18.53 million tonnes in 2013; this figure is 2.4 times the crude steel yield in 2004 (Fig. 1).Production of steel, which is an important raw material for national economic development, …
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CN110935560A
The invention belongs to the technical field of comprehensive utilization of mineral resources, and particularly relates to a beneficiation method for recovering phosphorus from vanadium titano-magnetite tailings with extremely low phosphorus content, which has the following specific scheme: further grinding, sulfur selecting, iron selecting and titanium selecting are carried out …
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The changing technology trends in processing …
Titaniferous magnetite deposits are a significant source of vanadium for use in high-strength steel alloying and other chemical applications as well as producing titanium slag for the chloride production of titanium pigment.
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