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Method for preparing vanadium-nitrogen alloy by utilizing vanadium trioxide

A technology of vanadium trioxide and vanadium nitrogen alloy, which is applied in the field of preparing vanadium nitrogen alloy, can solve problems such as unsatisfactory product yield, and achieve the effects of improving product yield, simple process, and shortening process flow

Inactive Publication Date: 2017-02-15
NANTONG HANRUI IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The existing vanadium-nitrogen alloy production processes are diversified, but the selection of raw materials and the use of reducing agents have a great impact on the yield of subsequent products. At present, nitrogen is commonly used, so the yield of products is not ideal

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0012] Embodiment 1: The present invention relates to a kind of method that utilizes vanadium trioxide to prepare vanadium nitrogen alloy, comprises the following steps:

[0013] (1) Add vanadium trioxide and graphite into the mixing mixer according to the weight ratio of 5:1, and stir and mix;

[0014] (2) Add 5% ammonium chloride, 5% ammonium sulfate and water to the mixing mixer in step (1), the mass ratio of ammonium chloride, ammonium sulfate and water is 1:1:3, and stir evenly Finally, the mixed material is formed, and the mixed material is loaded into a crucible and then dried;

[0015] (3) Nitrogen and hydrogen are fed into the intermediate frequency furnace, the nitrogen pressure is 5MPa, and the nitrogen flow rate is 7m 3 / h, the pressure of hydrogen is 2MPa, and the flow rate of nitrogen is 2m 3 / h, the temperature is raised to 2000°C for carbonization reaction, the carbonization reaction time is 120min, then the temperature is gradually raised to 700°C, the mater...

Embodiment 2

[0017] Embodiment 2: A kind of method utilizing vanadium trioxide to prepare vanadium nitrogen alloy comprises the following steps:

[0018] (1) Add vanadium trioxide and graphite into the mixing mixer according to the weight ratio of 5:1, and stir and mix;

[0019] (2) Add 5% ammonium chloride, 5% ammonium sulfate and water to the mixer in step (1), the mass ratio of ammonium chloride, ammonium sulfate and water is 1:1:3. Stir evenly to form a mixed material, put the mixed material into a crucible and dry it;

[0020] (3) Nitrogen and hydrogen are fed into the intermediate frequency furnace, the nitrogen pressure is 10MPa, and the nitrogen flow rate is 10m 3 / h, the pressure of hydrogen is 5MPa, and the flow rate of nitrogen is 5m 3 / h, raise the temperature to 2000°C for carbonization reaction, the carbonization reaction time is 120-240min, then gradually raise the temperature to 700°C, make the material gradually undergo nitriding reaction, the nitriding reaction time is ...

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PUM

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Abstract

The invention relates to a method for preparing vanadium-nitrogen alloy by utilizing vanadium trioxide. The method comprises the following steps: (1) adding vanadium trioxide and graphite into a mixing stirrer according to a weight ratio of 5:1, stirring and blending; (2) adding 5% ammonium chloride, 5% ammonium sulfate and water into the mixing stirrer in the step (1), uniformly stirring to form a mixed material, putting the mixed material in a crucible and then drying in the crucible. The method disclosed by the invention has the advantages that the process is simple, raw materials are improved, vanadium trioxide, ammonium chloride and ammonium sulfate are adopted, and nitrogen and hydrogen are used for reaction, so the technological process is shortened and the product yield is increased.

Description

technical field [0001] The invention relates to a method for preparing a vanadium-nitrogen alloy by using vanadium trioxide. Background technique [0002] The existing vanadium-nitrogen alloy production processes are diversified, but the selection of raw materials and the use of reducing agents have a great impact on the yield of subsequent products. At present, nitrogen is commonly used, so the yield of products is not ideal . Contents of the invention [0003] For overcoming the defective of prior art, the present invention provides a kind of method for preparing vanadium-nitrogen alloy, technical scheme of the present invention is: [0004] A method for preparing a vanadium-nitrogen alloy by using vanadium trioxide, comprising the following steps: [0005] (1) Add vanadium trioxide and graphite into the mixing mixer according to the weight ratio of 5:1, and stir and mix; [0006] (2) Add 5% ammonium chloride, 5% ammonium sulfate and water to the mixing mixer in step ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C27/02C22C1/10
CPCC22C1/10C22C27/025C22C1/1089
Inventor 戴红梅杨森喻红忠
Owner NANTONG HANRUI IND