Production method of vanadium-aluminum alloy
A vanadium-aluminum alloy and production method technology, applied in the field of metallurgy, can solve the problems of increasing the production cost of vanadium pentoxide, restricting the development of vanadium-aluminum alloy, low recovery rate of vanadium-aluminum alloy, etc., achieving environmental protection of the process, reducing the vanadium content rate, The effect of improving the recovery rate
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Embodiment 1
[0024] A kind of production method of vanadium aluminum alloy, its concrete steps comprise:
[0025] S1-1. Acid leaching: first, pretreat the vanadium slag, including crushing and magnetic separation to remove iron, so that the particle size of the vanadium slag reaches 100 mesh ± 10 mesh; Add dilute sulfuric acid with a concentration of 25%±2% to the vanadium slag. During this process, vanadium and other substances in the vanadium slag, such as impurities containing iron, magnesium, chromium, manganese, silicon, phosphorus, and sulfur, dissolve in the in the acid solution.
[0026] S1-2, impurity removal: adjust the pH value of the acidolysis solution in S1-1 to PH=4±0.5, at this time, the vanadium in the acidolysis solution forms calcium vanadate precipitation, and most of the iron, magnesium, Chromium, manganese, silicon, phosphorus, sulfur and other impurities are leached and enter the supernatant in the state of ions, for example: most of the iron exists in the supernata...
Embodiment 4
[0040] This embodiment is the same as the production process used in implementation one, the difference being the parameters used in each process, specifically as follows:
[0041] S4-1. Acid leaching: the particle size of the pretreated vanadium slag is 110 mesh; under the condition of 105°C, add dilute sulfuric acid with a concentration of 27% to the treated vanadium slag.
[0042] S3-2. Impurity removal: adjust the pH value of the pickling solution to pH=4.5.
[0043] S3-3. Aluminothermic reduction: mix the dry vanadium-containing filter residue with aluminum powder at a ratio of 2.4:1.0, and add industrial potassium chlorate at a mass of 5.5% of the total charge weight. Wherein, 4mm<the particle size of the vanadium-containing filter residue<5mm, 99%<the aluminum content of the aluminum powder<99.5%, the particle size of the aluminum powder is 3mm, and 4mm<the particle size of potassium chlorate<5mm. When adding aluminum powder in stages, a. During the smelting process, t...
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Abstract
Description
Claims
Application Information
- IPC
- C22C1/00; C22C21/00; C22C27/02; C22B3/08; C22B5/04; C22B34/22
- CPC
- Y02P10/20
- Inventors
- 王皎月; 龚波