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Process for smelting ferrovanadium by extraction of vanadium from vanadium-containing errophosphorus

A technology containing vanadium-phosphorus iron and vanadium-phosphorus iron, which is applied in the field of metallurgy, can solve problems such as failure to reach the smelting temperature, failure to work, failure to extract, etc., and achieve the effect of less investment and simple process

Inactive Publication Date: 2007-05-30
郴州市金龙铁合金有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This method has the same specific selectivity as the above-mentioned process, and is only suitable for vanadium extraction and smelting of vanadium slag containing impurities and low phosphorus. doesn't work either

Method used

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  • Process for smelting ferrovanadium by extraction of vanadium from vanadium-containing errophosphorus

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] The product that present embodiment produces is iron vanadium FeV-50-A, and its step is:

[0018] 1. First put vanadium-containing phosphorus iron (containing V5%) and NaCO3 into the electric furnace according to 1.5 times the ratio of V content, heat to 2000°C, pour it into the ladle after smelting for 2 hours, and pour it into the ladle when the temperature drops to 1400°C Oxygen-enriched air is blown into the melt to skim off the scum containing vanadium and phosphorus;

[0019] 2. Cool the molten iron ingot in the molten iron ladle into finished iron ingot;

[0020] 3. Cool and grind the scum containing vanadium and phosphorus in step 1 into powder (fineness up to 100 mesh), add sodium salt powder (sodium carbonate) to make pellets, and roast for 2 hours; the temperature of the roasting process is controlled at 900°C;

[0021] 4. Dissolve the soluble matter in the pellet into water by soaking the pellet in water to obtain a mixed solution of sodium vanadate and so...

Embodiment 2

[0026] The product that present embodiment produces is iron vanadium FeV-50-B, and its step is:

[0027] 1. First put vanadium-containing ferrophosphorus (containing V10%) and NaCO3 into the electric furnace according to 1 times the proportion of V, heat to 1600°C, pour it into the ladle after smelting for 2 hours, and pour it into the ladle when the temperature drops to 1300°C Oxygen-enriched air is blown into the melt to skim off the scum containing vanadium and phosphorus;

[0028] Steps 2, 3, 4, 5 are the same as in Example 1.

Embodiment 3

[0030] The product that present embodiment produces is iron vanadium FeV-75-A, and its step is:

[0031] 1. First, put steelmaking high-phosphorus vanadium slag (containing V8%) and NaCO3 into the electric furnace at a ratio of 1.2 times the V content, heat it to 1900°C, pour it into the ladle after smelting for 2 hours, and when the temperature drops to 1380°C Oxygen-enriched air is blown into the melt from time to time to skim off the scum containing vanadium and phosphorus;

[0032] Steps 2, 3, 4, 5 are the same as in Example 1.

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Abstract

The invention discloses an extracting and smelting method of vanadium through vanadophosphoric ferric, which is characterized by the following: adopting vanadophosphoric ferric and steel-smelting high-vanadophosphoric slag as raw material; extracting vanadium through water immersing method; removing ferric through electric furnace smelting method; recycling vanadium and ferric; smelting the vanadium ferric; recycling further; ripening phosphor slag pie; making phosphorous fertilizer; simplifying manufacturing technique; improving receiving rate at 82-65%; making smelting product satisfy national standard GB4139-87FeV50A.B and GB4139-87 FeV70A.B with eligible rate over 95%.

Description

technical field [0001] The invention relates to the technical field of metallurgy, in particular to a process for extracting vanadium and smelting ferro-vanadium by using ferro-phosphorus containing vanadium. Background technique [0002] We know that in the field of engineering materials technology, vanadium is an important alloy element, and vanadium plays a role in deoxidation and defluorination in steel. Ferrovanadium is mainly used as an alloying additive in steelmaking. After adding ferrovanadium to steel, it can significantly improve the hardness, strength, wear resistance and ductility of steel, and improve the cutting performance of steel. Ferrovanadium is often used in the production of carbon steel, low alloy steel strength steel, high alloy steel, tool steel and cast iron. [0003] The method of smelting ferrovanadium is generally to directly smelt ferrovanadium from vanadium slag, and different manufacturers have different specific methods according to the con...

Claims

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Application Information

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IPC IPC(8): C22B5/00C22B7/04C21B13/12C22B34/22C22B3/08C05B5/00
CPCY02P10/20
Inventor 胡帝生
Owner 郴州市金龙铁合金有限公司
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