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A kind of production method and device of powdery vanadium pentoxide

A technology of vanadium pentoxide and production device, applied in vanadium oxide, ammonium halide and other directions, can solve the problems of complex production process, poor operating environment, high energy consumption, etc., and achieves the improvement of operating environment, solving processing problems and simple process. Effect

Active Publication Date: 2016-11-09
锦州钒业有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Its disadvantages are: complex production process, high energy consumption, it turns into vanadium pentoxide when it is burned in the air, which is poisonous, and the production and operation environment of rotary kiln is poor.

Method used

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  • A kind of production method and device of powdery vanadium pentoxide
  • A kind of production method and device of powdery vanadium pentoxide
  • A kind of production method and device of powdery vanadium pentoxide

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] As shown in the figure, the powdery vanadium pentoxide production device includes a heating furnace body 1 and a charging crucible 2 arranged in the heating furnace body 1. The material of the charging crucible is nickel-chromium steel to facilitate heat conduction. Avoid the introduction of impurities. Described material holding crucible 2 is provided with ventilation pipeline 3, and described ventilation pipeline 3 is arranged axially and extends to the main pipeline 301 near the bottom of material holding crucible 2, and radially is arranged on the main pipeline 301 and is connected with the main pipeline. 301 is composed of multiple sets of branch pipelines 302 , in this embodiment, there are six groups, each group of branch pipelines 302 are longitudinally staggered and evenly distributed on the outer wall of the main pipeline 301 , and the angle between two adjacent groups of branch pipelines 302 is 45°. The end of the main pipeline 301 and the end of the branch p...

Embodiment 2

[0038] This powdery vanadium pentoxide production device is with embodiment 1.

[0039](1), using a powdery vanadium pentoxide production device, close the suction and discharge valve I903 and the liquid discharge valve II904, put the ventilation line 3 into the crucible 2, and then put the ammonium polyvanadate with a particle size of 0.01mm to 10mm Join in the material crucible 2, then will be installed with the material crucible 2 that ventilation line 3 and ammonium polyvanadate are housed in the heating furnace;

[0040] (2) When the heating furnace is powered on and heated to 400°C, the oxidizing gas is introduced from the inflatable pipe 6 to the ventilation line 3, and the pressure in the furnace is maintained at 0.01MPa to 0.2MPa; heated to 600°C, kept for 2 hours, The material is oxidized in the crucible 2 to generate powdery vanadium pentoxide, and the circulating water is cooled to room temperature to discharge the material; the oxidizing gas is oxygen;

[0041] (...

Embodiment 3

[0045] Powdery vanadium pentoxide production device is the same as embodiment 1.

[0046] (1), using a powdery vanadium pentoxide production device, close the suction and discharge valve I903 and the liquid discharge valve II904, put the ventilation line 3 into the crucible 2, and then put the ammonium polyvanadate with a particle size of 0.01mm to 10mm Join in the material crucible 2, then will be installed with the material crucible 2 that ventilation line 3 and ammonium polyvanadate are housed in the heating furnace;

[0047] (2) When the heating furnace is energized and heated to 450°C, the oxidizing gas is fed into the ventilation line 3 from the gas filling pipe 6, and the pressure in the furnace is maintained at 0.01MPa-0.2MPa; heated to 650°C, and kept for 1h, Oxidize the material in the crucible 2 to generate powdery vanadium pentoxide, and cool to room temperature under the protection of an oxidizing gas under airtight conditions; the oxidizing gas is oxygen or compr...

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Abstract

A production method and device for powdery vanadium pentoxide, the device is composed of a heating furnace body, a material crucible, a ventilation pipeline, an oxidizing gas outlet, an exhaust hole, an exhaust pipe, an inflatable pipe, an inflatable port, and a furnace cover and exhaust gas absorber. Close the drain valve Ⅰ and drain valve Ⅱ, put the ventilation pipeline into the material crucible, then add ammonium polyvanadate into the material crucible, and then put the ventilation pipeline and the container filled with ammonium polyvanadate The material crucible is loaded into the heating furnace; the heating furnace is energized and heated, and the oxidizing gas is introduced into the ventilation pipeline from the gas-filled pipe, so that the material will undergo oxidation reaction in the material crucible to form powdery vanadium pentoxide, and it will be cooled to room temperature. Material; the waste gas discharged from the reaction is passed through the exhaust hole and the exhaust pipe into the absorption tank, and the ammonium chloride solution is salted out, evaporated and crystallized to obtain industrial ammonium chloride by-products. The advantages are that the structure of the device is reasonable, the process is simple, the energy consumption is small, the environment is friendly, and industrial production can be realized.

Description

technical field [0001] The present invention relates to a production method and device for powdery vanadium pentoxide, in particular to a co-production process and device for recovering ammonium chloride from titanium white waste hydrochloric acid solution in the chlorination process while processing the production process of powdery vanadium pentoxide . Background technique [0002] Vanadium pentoxide is one of the important compounds of vanadium series, widely used in metallurgy, electronics, chemical industry and other industries. Powdered vanadium pentoxide can be used to prepare vanadium iron, vanadium aluminum, vanadium carbide, vanadium nitride and other products, adding it to molten steel can improve the mechanical properties of steel; powdered vanadium pentoxide can also be used to prepare metal vanadium powder; Shaped vanadium pentoxide can also be used to prepare electronic products such as vanadium batteries. [0003] Chlorination titanium dioxide is the most a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C01G31/02C01C1/16
Inventor 齐牧崔传海李广明韩艳芝李杰王云来
Owner 锦州钒业有限责任公司