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Purification process of pure niobium

A process, pure niobium technology, applied in the field of purification process, can solve the problems of low work efficiency, many impurities, high purification cost, and achieve the effect of controlling production cost, less impurity content, and high purification efficiency

Active Publication Date: 2017-04-26
江苏圣亚有色金属材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0002] At present, in the purification process of niobium, there are problems such as unreasonable material ratio, unsatisfactory reaction conditions, and unscrupulous process steps. Therefore, the purification purity of niobium is not too high, contains more impurities, and the purification cost is also high. , low work efficiency, does not meet the actual production requirements

Method used

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  • Purification process of pure niobium

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Experimental program
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Effect test

Embodiment 1

[0024] The purification process of pure niobium of the present invention includes the following steps:

[0025] (1) Ingredients: calculated in parts by weight, 150 parts of industrial niobium oxide and 60 parts of aluminum powder;

[0026] (2) Mixing: Put the industrial niobium oxide and aluminum powder into the V-type mixer and mix for 40 minutes, fully contact and mix;

[0027] (3) Reduction furnace cleaning: clean the reduction furnace body before reduction to ensure a good reduction atmosphere;

[0028] (4) Reduction: Put the mixed materials into the reduction furnace for reduction reaction, namely Al+Nb 2 O 5 →Nb+Al 2 O 3 , The reduction vacuum is controlled within 50 Pascals, and the furnace temperature is controlled within 300°C;

[0029] (5) Out of the furnace: Reduce the guaranteed temperature of the reduced materials to within 80°C and out of the furnace to prevent the materials from nitriding and other reactions;

[0030] (6) Crushing: Put the discharged materials into the Esh...

Embodiment 2

[0042] The purification process of pure niobium of the present invention includes the following steps:

[0043] (1) Ingredients: calculated in parts by weight, take 160 parts of industrial niobium oxide and 65 parts of aluminum powder;

[0044] (2) Mixing: Put the industrial niobium oxide and aluminum powder into the V-type mixer and mix for 45 minutes, fully contact and mix;

[0045] (3) Reduction furnace cleaning: clean the reduction furnace body before reduction to ensure a good reduction atmosphere;

[0046] (4) Reduction: Put the mixed materials into the reduction furnace for reduction reaction, namely Al+Nb 2 O 5 →Nb+Al 2 O 3 , The reduction vacuum is controlled within 50 Pascals, and the furnace temperature is controlled within 300°C;

[0047] (5) Out of the furnace: Reduce the guaranteed temperature of the reduced materials to within 80°C and out of the furnace to prevent the materials from nitriding and other reactions;

[0048] (6) Crushing: Put the discharged materials into th...

Embodiment 3

[0060] The purification process of pure niobium of the present invention includes the following steps:

[0061] (1) Ingredients: calculated in parts by weight, 170 parts of industrial niobium oxide and 70 parts of aluminum powder;

[0062] (2) Mixing: Put the industrial niobium oxide and aluminum powder into the V-type mixer and mix for 50 minutes, and fully contact and mix;

[0063] (3) Reduction furnace cleaning: clean the reduction furnace body before reduction to ensure a good reduction atmosphere;

[0064] (4) Reduction: Put the mixed materials into the reduction furnace for reduction reaction, namely Al+Nb 2 O 5 →Nb+Al 2 O 3 , The reduction vacuum is controlled within 50 Pascals, and the furnace temperature is controlled within 300°C;

[0065] (5) Out of the furnace: Reduce the guaranteed temperature of the reduced materials to within 80°C and out of the furnace to prevent the materials from nitriding and other reactions;

[0066] (6) Crushing: Put the discharged materials into the...

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Abstract

The invention relates to a pure niobium purification process including the steps of material preparation, material mixing, reduction furnace cleaning, reducing, discharging, crushing, screening, vacuum electron beam furnace cleaning, charging, primary smelting with a vacuum electron beam furnace, primary cooling, secondary smelting with the vacuum electron beam furnace, secondary cooling, discharging, sampling analysis and finished product obtaining. The process is rigorous in steps, the purification efficiency is high, and the purification purity is high.

Description

Technical field [0001] The invention relates to a purification process, in particular to a purification process of metal niobium. Background technique [0002] At present, in the purification process of niobium, there are problems such as unreasonable material ratio, unsatisfactory reaction conditions, and unrigorous process steps. Therefore, the purification purity of niobium is not too high, contains more impurities, and the purification cost is also high. , The work efficiency is low and does not meet the actual production requirements. Summary of the invention [0003] Objective of the invention: The objective of the present invention is mainly aimed at the deficiencies in the prior art, and provides a purification process for pure niobium with rigorous process steps, high purification efficiency, and high purification purity. [0004] Technical Solution: In order to solve the above technical problems, the purification process of pure niobium according to the present invention ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22B34/24
Inventor 李明阳谢南海
Owner 江苏圣亚有色金属材料有限公司
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