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Vanadium extraction technology by high oxygen enrichment method

A high oxygen-enrichment method and process technology, applied in the field of iron and steel smelting, can solve problems such as high cost, inconvenient comprehensive utilization of resources, complex process, etc., and achieve the effects of convenient operation, promotion of social stability and unity, and simple process

Inactive Publication Date: 2009-08-26
邓元忠
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The patented process is complex and costly, and most of the areas where the V mine is located have certain reserves of ordinary iron ore resources, which is inconvenient for comprehensive utilization of resources. The above-mentioned patented process cannot effectively solve this problem

Method used

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Examples

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Comparison scheme
Effect test

Embodiment 1

[0026] A process for extracting vanadium by high oxygen-enrichment method, characterized in that: the process for extracting vanadium specifically includes the following steps:

[0027] a. Whole sample analysis: select common iron ore as raw material, carry out full sample analysis, and accurately measure;

[0028] b. Proportioning CaO: According to the analysis results of the whole sample, the binary alkalinity is used, and the CaO proportioning is carried out according to the standard of CaO: Si content in the concentrate = 2:1;

[0029] c. Furnace feeding: put the proportioned raw ore into the blast furnace;

[0030] d. High-temperature melting: raise the temperature in the blast furnace to 1700°C, 3 , the oxygen content is 40-55%) to oxidize and melt the concentrate;

[0031] e. Filtration: According to the difference in specific gravity between Si, Ca, Mg and Fe, V in minerals, Si, Ca, Mg are filtered out to obtain FeV after V and Fe are reduced;

[0032] f. Oxygen blo...

Embodiment 2

[0038] A process for extracting vanadium by high oxygen-enrichment method, characterized in that: the process for extracting vanadium specifically includes the following steps:

[0039] a. Whole sample analysis: select common iron ore as raw material, carry out full sample analysis, and accurately measure;

[0040] b. Proportioning CaO: According to the analysis results of the whole sample, the binary alkalinity is used, and the CaO proportioning is carried out according to the standard of CaO: Si content in the concentrate = 5:1;

[0041] c. Furnace feeding: put the proportioned raw ore into the blast furnace;

[0042] d. High-temperature melting: raise the temperature in the blast furnace to 1800°C, 3 , the oxygen content is 40-55%) to oxidize and melt the concentrate;

[0043] e. Filtration: According to the difference in specific gravity between Si, Ca, Mg and Fe, V in minerals, Si, Ca, Mg are filtered out to obtain FeV after V and Fe are reduced;

[0044] f. Oxygen blo...

Embodiment 3

[0050] A process for extracting vanadium by high oxygen-enrichment method, characterized in that: the process for extracting vanadium specifically includes the following steps:

[0051] a. Whole sample analysis: select common iron ore as raw material, carry out full sample analysis, and accurately measure;

[0052] b. Proportioning CaO: According to the analysis results of the whole sample, the binary alkalinity is used, and the CaO proportioning is carried out according to the standard of CaO: Si content in the concentrate = 3:1;

[0053] c. Furnace feeding: put the proportioned raw ore into the blast furnace;

[0054] d. High-temperature melting: raise the temperature in the blast furnace to 1740°C, 3 , the oxygen content is 40-55%) to oxidize and melt the concentrate;

[0055] e. Filtration: According to the difference in specific gravity between Si, Ca, Mg and Fe, V in minerals, Si, Ca, Mg are filtered out to obtain FeV after V and Fe are reduced;

[0056] f. Oxygen blo...

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Abstract

The invention relates to a vanadium extraction method, in particular to a vanadium extraction technology by high oxygen enrichment method which belongs to the technical field of iron and steel melting. The vanadium extraction technology comprises eight steps: a. whole sample analysis, b. preparation of CaO, c. sending into a furnace, d. high-temperature melting, e. filtration, f. extraction of V by oxygen blowing, g. extraction of V2O5 by filtration and h. water immersion of furnace slag. The vanadium extraction technology has the advantages of great production capacity, low energy consumption, low metal loss, high total recovery rate of vanadium and ability of fully recovering and utilizing vanadium and iron resources and other valuable metals; meanwhile, the resources with small reserves at the region can be fully utilized.

Description

technical field [0001] The invention relates to a method for extracting vanadium, in particular to a process for extracting vanadium by a high-oxygen enrichment method, which belongs to the technical field of iron and steel smelting. Background technique [0002] Vanadium is a national strategic precious metal. In addition to the symbiotic form of vanadium-titanium magnetite, the enrichment area is in Panxi, my country, and the vanadium ore also exists in the form of silicon-vanadium symbiosis. The types include phyllotype and carbonaceous type. These types of V ores have extremely low S and P content, and also contain a small amount of Cao and mg. According to the survey, there are certain reserves in Xinjiang, Gansu, Chongqing, Henan, Hunan, Jiangxi, Anhui and other provinces in China, of which Xinjiang reserves are 2.8 million tons of metal vanadium, but the average grade is only 0.86, and the highest grade in other regions is only 8%. There are generally the following dom...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22B34/22C21B5/00
CPCY02P10/20
Inventor 邓兴邓刚邓元忠
Owner 邓元忠
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