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direct factory leaching for vanadium ore

Extraction of vanadium from direct acid leaching solution

Solvent extraction of vanadium from a direct acid leaching solution, generated by the direct leaching of clay vanadium ore, was conducted using tertiary amine N235, and the effects of the main factors on the extraction of vanadium and iron were investigated. Through a three-stage countercurrent extraction under the following optimum conditions

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Direct Leaching of Vanadium from Vanadium-bearing Steel

Vanadium-bearing steel slag is a typical solid waste in the steel industry and a valuable secondary resource for vanadium production. In this paper, a direct alkaline leaching process was proposed

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Study on Direct Acid Leaching Vanadium without Grinding

Abstract:A new technology of direct acid leaching vanadium without grinding and roasting was put forward, and the effects of leaching factors including dosage of sulfuric acid, type and dosage of assistant leaching agent, leaching time and temperature, liquid-solid ratio on the vanadium leaching rate were systematically investigated. The results show that vanadium leaching rate could be up

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Recovery of Vanadium from Magnetite Ore Using Direct Acid

Jun 01, 2018· Recovery of vanadium from magnetite ore by direct acid leaching is discussed. The proposed process, which employs a mixture of nitric and sulfuric acids, avoids pyrometallurgical treatments since such treatment consumes a high amount of energy. To determine the optimum conditions of vanadium recovery, the leaching process is optimized through Plackett-Burman (P-B)

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Direct Acid Leaching of Vanadium from Stone Coal

The results show that the vanadium leaching ratio of roasted stone coal through two-stage counter-current leaching can reach 65.1% at the mass ratio of H2SO4 to stone coal of 20%, leaching

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Extracting Vanadium Through Heap Leach Technology Will

The leach solution contains the chemical required to leach the metals present and that chemical is called a lixiviant. In the case of gold and silver the lixiviant is cyanide and for copper, nickel, cobalt, or vanadium the lixiviant is sulfuric acid. The leach solution percolates down through the ore and the metal is dissolved in the leach

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Extraction of vanadium from direct acid leaching solution

May 01, 2018· The direct acid leaching solution used in this study was generated by the direct acid leaching of a clay vanadium ore from Mayang area, Hunan Province, China (Ye et al., 2013). This direct acid leaching solution had high concentrations of impurity metals (especially Al and Fe) and was strongly acidic (pH 0.3), in which vanadium existed in two

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Direct Leaching of Vanadium from Vanadium-bearing Steel

Vanadium-bearing steel slag is a typical solid waste in the steel industry and a valuable secondary resource for vanadium production. In this paper, a direct alkaline leaching process was proposed

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Recovery of Vanadium from Magnetite Ore Using Direct Acid

Recovery of vanadium from magnetite ore by direct acid leaching is discussed. The proposed process, which employs a mixture of nitric and sulfuric acids, avoids pyrometallurgical treatments since such treatment consumes a high amount of energy. To determine the optimum conditions of vanadium recovery, the leaching process is optimized through Plackett-Burman (P-B) design and response

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Recovery of Vanadium from Magnetite Ore Using Direct Acid

Mar 23, 2018· Recovery of vanadium from magnetite ore by direct acid leaching is discussed. The proposed process, which employs a mixture of nitric and sulfuric acids, avoids pyrometallurgical treatments since such treatment consumes a high amount of energy. To determine the optimum conditions of vanadium recovery, the leaching process is optimized through Plackett–Burman (P–B)

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Direct Acid Leaching of Vanadium from Stone Coal

The results show that the vanadium leaching ratio of roasted stone coal through two-stage counter-current leaching can reach 65.1% at the mass ratio of H2SO4 to stone coal of 20%, leaching

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Recovery of Vanadium from Magnetite Ore Using Direct Acid

Nejat et al. reported on the recovery of vanadium from magnetite ore by direct acid leaching with a mixture of nitric and sulfuric acids. 86.7% of vanadium can be extracted at the optimum

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Sulfuric acid leaching and recovery of vanadium from a

Jan 01, 2020· In order to recover vanadium from vanadium-bearing black shale efficiently, a hydrometallurgical process is developed in this paper to treat the concentrate beneficiated from stone coal ore, in which the vanadium mainly occurs in the form of Fe 3-x V x O 4 spinel. At the first step, the leaching behaviors of Fe and V from the concentrate by using sulfuric acid solution are investigated

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Recovery of Vanadium from Magnetite Ore Using Direct Acid

According to the P–B approach, temperature and acid concentrations are, respectively, the most effective parameters in the leaching process. These parameters are optimized using RSM to maximize recovery of vanadium by direct acid leaching. In this way, 86.7% of vanadium can be extracted from magnetic ore.

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NEW PROCESS OF EXTRACTING VANADIUM FROM

The new process of vanadium extraction from molten vanadium slag by direct oxidation and sodium activating method is reasonable and feasible. The experimental results show that in the new process, vanadium in the roasted slag exists mainly in the form of water-soluble sodium vanadate and the vanadium water leaching efficiency can reach to 80%,

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Vanadium: The metal we can’t do without and don’t produce

Oct 24, 2017· Vanadium is typically found within magnetite iron ore deposits, and is usually mined as a byproduct and not as a primary mineral. Vanadium is often agglomerated with titanium, which must be

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Optimization of Oxidative Leaching for Vanadium Extraction

processes Article Optimization of Oxidative Leaching for Vanadium Extraction from Low-Grade Stone Coal Using Response Surface Methodology Zulv Huang 1,2, Tao Chen 3,4,*, Yang Zhou 1,2, Wenbin Xu 5, Hanzhi Lin 1,2 and Bo Yan 3,4 1 State Key Laboratory of Organic Geochemistry, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou 510640, China;

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Acid Leaching of Vanadium from a Vanadium Residue

Recovery of vanadium from magnetite ore by direct acid leaching is discussed. The proposed process, which employs a mixture of nitric and sulfuric acids, avoids pyrometallurgical treatments since

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Vanadium MinAssist

Vanadium occurs with uranium in carnotite, the primary uranium host in the Tiris resource. Vanadium is leached along with uranium in the alkaline leaching process. This vanadium is usually rejected in the ion exchange process but MinAssist has worked with ANSTO Minerals to develop a process for recovery of the vanadium value to a saleable product.

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Patterns of Extractive Leaching of Uranium and Vanadium

The possibility of performing direct extractive leaching of uranium and vanadium from refractory ores that are preliminarily treated by the method of granular sulfatization, omitting the stage of

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