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Vanadium pentoxide as well as production method and application thereof

The technology of vanadium pentoxide and vanadium slag is applied in the field of metallurgy, which can solve the problems of complex production process of vanadium pentoxide, and achieve the effects of sustainable development, low cost of raw materials and significant economic benefits.

Inactive Publication Date: 2017-12-22
WUHU RENBEN ALLOY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the invention is to solve the problems of complex production process of vanadium pentoxide and strict requirements on process parameters in the prior art

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] (1) selecting the content of silicon dioxide and the mass ratio of vanadium pentoxide to be 3:1 vanadium slag is roasted, and roasting is carried out in roasting furnace, obtains vanadium slag clinker;

[0036] (2) add sodium chloride in the vanadium slag clinker, obtain mixture, the quality of sodium chloride is 2 times of the quality of vanadium pentoxide in the vanadium slag;

[0037] (3) taking the roasted vanadium slag clinker out of the furnace, cooling it at 8° C., and immersing it in water, and adjusting the pH of the solution to 8.5 to obtain a vanadium-containing solution;

[0038] (4) filter the vanadium-containing solution obtained in (3), and add ammonium sulfate to the filtrate to obtain ammonium metavanadate;

[0039] (5) step (4) gained ammonium metavanadate is carried out recrystallization, washing, drying, obtains the high ammonium metavanadate of purity, and washing selects deionized water;

[0040] (6) Calcining the ammonium metavanadate to obtain v...

Embodiment 2

[0043] (1) selecting the content of silicon dioxide and the mass ratio of vanadium pentoxide to be 12:1 vanadium slag is roasted, and roasting is carried out in the roasting furnace, obtains vanadium slag clinker;

[0044] (2) add sodium chloride in the vanadium slag clinker, obtain mixture, the quality of sodium chloride is 4 times of the quality of vanadium pentoxide in the vanadium slag;

[0045] (3) taking the roasted vanadium slag clinker out of the furnace, cooling it at 10° C., and immersing it in water, and adjusting the pH of the solution to be 9 to obtain a vanadium-containing solution;

[0046] (4) filter the vanadium-containing solution obtained in (3), and add ammonium sulfate to the filtrate to obtain ammonium metavanadate;

[0047] (5) step (4) gained ammonium metavanadate is carried out recrystallization, washing, drying, obtains the high ammonium metavanadate of purity, and washing selects deionized water;

[0048] (6) Calcining the ammonium metavanadate to o...

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PUM

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Abstract

The invention discloses vanadium pentoxide as well as a production method and an application thereof. The method comprises the steps as follows: vanadium slag containing silica and vanadium pentoxide in a mass ratio of 3-12 is selected for calcination, and vanadium slag clinker is obtained; sodium chloride is added to the vanadium slag clinker, and a mixture is obtained, wherein the mass of sodium chloride is 2-4 times that of vanadium pentoxide in the vanadium slag; the calcined vanadium slag clinker is discharged out of a furnace, cooled at a temperature of 10 DEG C or lower and soaked in water, pH of a solution is regulated to 7 or higher, and a vanadium-containing solution is obtained; the obtained vanadium-containing solution is filtered, ammonium sulfate is added to a filtrate, and ammonium metavanadate is obtained; obtained ammonium metavanadate is washed, dried and recrystallized, and ammonium metavanadate with high purity is obtained; ammonium metavanadate is calcined, and vanadium pentoxide is obtained. The vanadium pentoxide production process is simple, the cost of raw materials is low, popularization and application are facilitated, and huge economic benefits can be obtained; final wastewater can be recycled and used, and accordingly, sustainable development is achieved, and remarkable economic benefits can be obtained.

Description

technical field [0001] The invention belongs to the field of metallurgy, and more specifically relates to a vanadium pentoxide and its production method and application. Background technique [0002] Vanadium slag is a general term for vanadium oxide-containing slag obtained from vanadium-containing molten iron through oxidation blowing during the vanadium extraction process or vanadium-containing iron concentrate through wet vanadium extraction. Press V 2 o 5 The content of vanadium slag is different, China’s national standard divides vanadium slag into 6 grades, they are vanadium slag 11, vanadium slag 13, vanadium slag 15, vanadium slag 17, vanadium slag 19 and vanadium slag 21; SiO 2 And the content of Fe has restrictive regulations. V in vanadium slag 2 o 5 ; and the content of other components is determined by the composition of molten iron. The silicon content and vanadium content in molten iron are the primary factors that directly affect the quality of vanadi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01G31/02C22B34/22
CPCC01G31/02C01P2006/80C22B34/22Y02P10/20
Inventor 鲁冲鲁爱霞窦勇
Owner WUHU RENBEN ALLOY
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