Method for producing ferrovanadium

A technology of ferrovanadium and iron red powder, which is applied in the field of metallurgy, can solve the problems of high cost, achieve the effects of reducing labor, reducing production area, and shortening the process flow

Inactive Publication Date: 2012-12-12
PANZHIHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, either with V 2 o 5 Ferrovanadium is produced as vanadium raw material, or V 2 o 3 Ferrovanadium is produced for vanadium raw materials, and the cost of raw materials is relatively high

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] Embodiment 1 adopts the inventive method to produce semi-high vanadium ferroalloy

[0036] Ammonium polyvanadate (V 2 o 5 =89.94wt%, particle size is 0.05~0.20mm) 892 grams, iron red (Fe 2 o 3 =97.00wt%, particle size is 0.05~0.1mm) 166.0 grams, aluminum powder (Al=99.97wt%, particle size is 0.075~0.200mm) 484.2 grams, lime (CaO=66.40wt%, particle size is 1.00~5.15mm) 270.5 grams, mix them well. The concentration of polyvinyl alcohol aqueous solution is 3g / L, take 72.5g of polyvinyl alcohol aqueous solution, mix it with the mixture and press it into pellets, put the pellets in an oven at 100°C for 12 hours to form a dried ball group. Throw a small amount of such pellets into the single-phase electric arc furnace. After the arc starts, gradually put the remaining pellets into the electric arc furnace for smelting under the condition of uninterrupted power supply. After the pellets are thrown, continue to smelt with electricity for 5.0 minutes, and wait for the furna...

Embodiment 2

[0037] Embodiment 2 adopts the inventive method to produce semi-high vanadium ferroalloy

[0038] Ammonium polyvanadate (V 2 o 5 =88.95wt%, particle size is 0.06~0.18mm) 902 grams, iron red (Fe 2 o 3 =97.00wt%, particle size is 0.05~0.1mm) 165.6 grams, aluminum powder (Al=99.97wt%, particle size is 0.075~0.200mm) 484.2 grams, lime (CaO=66.40wt%, particle size is 1.00~5.15mm) 269.0 grams, mix them well. The concentration of the polyvinyl alcohol aqueous solution is 4g / L. Take 91.1g of the polyvinyl alcohol aqueous solution, mix it with the mixture, press it into a pellet, and place the pellet in the sun for 48 hours to form a dried pellet. Throw a small amount of such pellets into the single-phase electric arc furnace. After the arc starts, gradually put the remaining pellets into the electric arc furnace for smelting under the condition of uninterrupted power supply. After being released from the furnace, vanadium-iron alloy is obtained. After detection, the mass percent...

Embodiment 3

[0039] Embodiment 3 adopts the inventive method to produce high vanadium ferroalloy

[0040] Ammonium polyvanadate (V 2 o 5 =89.94wt%, particle size is 0.05~0.20mm) 892 grams, iron red (Fe 2 o 3 =97.00wt%, particle size is 0.05~0.1mm) 117.0 grams, aluminum powder (Al=99.97wt%, particle size is 0.075~0.200mm) 484.2 grams, lime (CaO=66.40wt%, particle size is 1.00~5.15mm) 236.6 grams, mix them well. The concentration of the polyvinyl alcohol aqueous solution is 4g / L. Take 87.5g of the polyvinyl alcohol aqueous solution, mix it with the mixture, press it into a pellet, and place the pellet in the sun for 48 hours to form a dried pellet. Throw a small amount of such pellets into the single-phase electric arc furnace. After the arc starts, gradually put the remaining pellets into the electric arc furnace for smelting under the condition of uninterrupted power supply. After the pellets are thrown, continue to smelt with electricity for 2.5 minutes, and wait for the furnace to co...

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Abstract

The invention relates to a method for producing ferrovanadium, belonging to the technical field of metallurgy and aiming at solving the technical problem of providing a method which has lower production cost and is used for producing the ferrovanadium. The method for producing the ferrovanadium comprises the following steps of: a, mixing materials: uniformly mixing vanadium-containing raw materials, iron red powder, aluminum powder and CaO to obtain a mixed material, wherein the vanadium-containing raw material is at least one of ammonium poly-vanadate and ammonium metavanadate, the proportion by weight of the vanadium-containing raw materials in terms of vanadium to the iron red powder in terms of iron is 1: (0.16-0.26), the coefficient of mixed aluminum is 1.05-1.15, and the coefficientof the mixed CaO is 0.35-0.47; b, pelletizing: pelletizing the obtained mixed material, and drying pellets; and c, placing into a furnace for smelting: placing the dried pellets into the furnace, andsmelting till the mixed material is completely reacted; and d, taking out of the furnace to obtain the ferrovanadium.

Description

technical field [0001] The invention relates to a method for producing ferrovanadium and belongs to the technical field of metallurgy. Background technique [0002] Ferro-vanadium alloy is an important alloy additive in the iron and steel industry. At present, the methods for producing ferro-vanadium alloy mainly include electrosilicothermic method, aluminothermic method and electroluminothermic method. Electrosilicothermal method is mainly based on V 2 o 5 (or V 2 o 3 ) adding lime, steel shavings (or iron powder), ferrosilicon and aluminum pellets as raw materials for smelting, the aluminothermic method and electric aluminothermic method mainly use V 2 o 5 (or V 2 o 3 ) adding lime, steel shavings (or iron powder) and aluminum particles for smelting, which are all based on V 2 o 5 or V 2 o 3 It is a vanadium-containing raw material, such as: "Ferroalloy", 2002, No.3, 10-13 literature "V 2 o 5 and V 2 o 3 The disclosed method of producing ferro-vanadium techn...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22B5/04C21B15/02C22C27/02C22C35/00
Inventor 方民宪彭再立邓本山姜德泉
Owner PANZHIHUA UNIV
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