Method for preparing FeV50 alloy by using waste iron materials obtained through extraction of vanadium from vanadium slag

A technology of iron materials and vanadium slag, which is applied in the field of metallurgy, can solve the problems of reducing the amount of waste generated in the production line, reducing the production cost of vanadium-ferroalloy, and poor quality of vanadium-ferroalloy, and achieves the effect of qualified composition, good quality and efficient utilization

Pending Publication Date: 2021-08-17
PANZHIHUA IRON & STEEL RES INST OF PANGANG GROUP
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Problems solved by technology

[0005] The purpose of the present invention is to provide a method for preparing FeV50 alloy by using vanadium slag to extract vanadium and waste iron materials to prepare FeV50 alloy in order to overcome the problems of high cost and poor quality of vanadium-iron alloy in the production process of ferro-vanadium alloy existing in the prior art. The composition ch

Method used

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  • Method for preparing FeV50 alloy by using waste iron materials obtained through extraction of vanadium from vanadium slag
  • Method for preparing FeV50 alloy by using waste iron materials obtained through extraction of vanadium from vanadium slag

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[0056] Example 1

[0057] Pentoxide (Tv is 55.0% by weight), and the trioxide (Tv is 64.0% by weight), aluminum granules (aluminum particle purity is 99.0% by weight, the particle size is 0.1 cm, the actual amount of aluminum grains is theoretically added) 1.0 times the amount), vanadium residue vanadium waste iron (vanadium residue vanadium waste iron is crude vanadium slag gloss grinding iron, vanadium residue, vanadium, vanadium, bronze), and the mass ratio of metallic Fe and oxidation state Fe of 4: 1) and lime (the content of CaO in lime is 85% by weight, the content of metal impurities is 1% by weight), resulting in a mixture of vanadium iron smelting mixture, and then puts the vanadium iron smelting mixture into a smelting electric furnace for smening, The electrode is dropped to the material contact, and the electrical arc is energized, and the reaction is triggered, and the ignition smelting (a method of smelting is a one-step method), and the mixture is completely melted...

Example Embodiment

[0061] Example 2

[0062] Pentoxide (Tv is 55.5% by weight), and the trioxide (Tv is 66.0% by weight), aluminum grain (the aluminum particle purity is 99.5% by weight, the particle size is 1 cm, the actual addition amount of aluminum grains is theoretically added) 1.1 times), vanadium residual vanadium waste iron (vanadium residue vanadium waste iron material is a variable vanadium slag fan selected magnetic property, vanadium residue vanadium waste iron material in the mass ratio of metallic Fe and oxidation state Fe is 6: 1), iron filings (the purity of iron filings is 99.5% by weight, the surface area of ​​iron filings is 5 cm 2 ) And lime (the content of CaO in lime is 90.0% by weight, the content of metal impurities is 0.5% by weight), resulting in a mixture of vanadium iron smelting mixture, and then loads the vanadium iron smelting mixture into a smelting electric furnace for smelting, will The electrode is lowered to the material contact, and the electrical arc is energize...

Example Embodiment

[0066] Example 3

[0067] Pentoxide (Tv is 55.0% by weight), and the trioxide (Tv is 64.0% by weight), aluminum granules (aluminum grain purity is 99.0% by weight, particle size is 0.5 cm, and the actual amount of aluminum grain is theoretically added. 1.0 times the amount), vanadium residue vanadium waste iron material (vanadium residue vanadium waste iron is leaching of tail slag iron rich aggregate, vanadium residue vanadium abandoned iron material metal FE and oxidation state Fe quality ratio 10 : 1) and lime (the content of CaO in the lime is 85% by weight, the content of metal impurities is 0.6% by weight), resulting in a mixture of vanadium iron smelting mixture, and then uniformly load the vanadium iron smelting mixture into a smelting electric furnace , The electrode is lowered to the material contact, and the electrical arc is energized, and the reaction is triggered, and the ignition smelting (the method of smelting is a multi-phase method), and the mixture is completel...

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Abstract

The invention relates to the field of metallurgy, and discloses a method for preparing an FeV50 alloy by using waste iron materials obtained through extraction of vanadium from vanadium slag. The method comprises the steps that vanadium oxide, aluminum particles, the waste iron materials obtained through extraction of the vanadium from the vanadium slag, scrap iron and lime are uniformly mixed to obtain a ferro-vanadium smelting mixture, then a smelting electric furnace is uniformly filled with the ferro-vanadium smelting mixture for smelting, and after smelting is finished, a furnace body is subjected to air cooling, and then the FeV50 alloy and smelting slag are obtained through furnace disassembling. According to the method, the component characteristics and the cost advantage of the waste iron materials in the vanadium extraction process of the vanadium slag are fully utilized, and the finally-produced ferro-vanadium alloy product is qualified in component and high in quality.

Description

technical field [0001] The invention relates to the field of metallurgy, in particular to a method for preparing FeV50 alloy from vanadium slag to extract vanadium from waste iron materials. Background technique [0002] Vanadium-iron alloys are widely used in vanadium-containing micro-alloyed steels. It has a dual strengthening mechanism of fine-grain strengthening and precipitation strengthening, thereby reducing overheating sensitivity and improving the strength and wear resistance of steel. Widely used in construction, aerospace, road and bridge industries. The production of ferro-vanadium alloy mainly includes thermal reduction methods such as silicothermal reduction method, aluminothermic reduction method and carbothermal reduction method. Due to the strong reduction activity of aluminum and the high calorific value of the reduction process, aluminothermic reduction is the most widely used. [0003] At present, the ferrovanadium alloy smelting methods in the world ca...

Claims

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Application Information

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IPC IPC(8): C22C33/06C22C35/00C22C38/12C22B7/00
CPCC22B7/001C22C33/06C22C35/00C22C38/12Y02P10/20
Inventor 余彬师启华陈海军尹丹凤
Owner PANZHIHUA IRON & STEEL RES INST OF PANGANG GROUP
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