Vanadium-aluminum alloy production method

A vanadium-aluminum alloy and production method technology, applied in the field of metallurgy, can solve problems such as limiting the output of vanadium-aluminum alloy and increasing manufacturing costs, and achieve the effects of facilitating the separation of slag and gold, increasing the yield, and reducing the content of impurities

Inactive Publication Date: 2018-07-27
PANGANG GROUP RESEARCH INSTITUTE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, since the aluminothermic reaction is carried out in a closed pressure vessel, the output of vanadium-aluminum alloy is greatly limited. In addition, due to the requirement of strong pressure resistance of the equipment, the manufacturing cost will be increased

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] Take 100kg of vanadium pentoxide and 55.7kg of aluminum particles as raw materials, the weight ratio of vanadium pentoxide and aluminum particles is 1.68:1, use analytically pure barium peroxide as the ignition agent, and coat the inner wall with fused magnesium fire mud With drilling cover (density of holes is 15 / m 2 ; the diameter of the hole is 1.5cm) in the graphite crucible to carry out thermite reduction reaction, the first batch of materials (90kg vanadium pentoxide+50.13kg aluminum), after the thermite reaction is completed, add the second batch of materials (10kg Vanadium pentoxide + 5.57kg aluminum), after the reaction is completed, let it stand for 30min, the slag and gold are separated to obtain 62.3kg vanadium aluminum alloy product, which contains V 90.06wt%, Al 9.63wt%, Fe0.10wt%, Si0.16wt% %.

Embodiment 2

[0039] Take 200kg of vanadium pentoxide and 127.4kg of aluminum pellets as raw materials, the weight ratio of vanadium pentoxide and aluminum pellets is 1.58:1, use analytically pure barium peroxide as the ignition agent, and coat the inner wall with fused magnesium fire clay With drilling cover (hole density is 16 holes / m 2 ; The diameter of the hole is 1.7cm) in the graphite crucible to carry out thermite reduction reaction, the first batch of materials (140kg vanadium pentoxide+89.18kg aluminum), after the thermite reaction is completed, add the second batch of materials (40kg Vanadium pentoxide + 25.48kg aluminum), after the aluminothermic reaction is completed, add the third batch of material (20kg vanadium pentoxide + 12.74kg aluminum), after the reaction is completed, let it stand for 30min, separate the slag and gold, and obtain 133.52kg vanadium aluminum The alloy product contains 85.04wt% of V, 14.6wt% of Al, 0.09wt% of Fe and 0.13wt% of Si.

Embodiment 3

[0041] Take 300kg of vanadium pentoxide and 250.2kg of aluminum particles as raw materials, the weight ratio of vanadium pentoxide and aluminum particles is 1.15:1, use analytically pure barium peroxide as the ignition agent, and coat the inner wall with fused magnesium fire clay With drilled cover holes at a density of 17 pcs / m 2 ; the diameter of the hole is 1.8cm) in the graphite crucible to carry out the aluminothermic reduction reaction, the first batch of materials (180kg vanadium pentoxide+150.12kg aluminum), after the thermite reaction is completed, add the second batch of materials (90kg Vanadium pentoxide + 75.06kg aluminum), after the aluminothermic reaction is completed, add the third batch of material (30kg vanadium pentoxide + 25.02kg aluminum), after the reaction is completed, let it stand for 30min, slag and gold are separated, and 269.4kg vanadium aluminum is obtained The alloy product contains V 65.9wt%, Al 33.8wt%, Fe 0.1wt%, Si 0.13wt%.

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Abstract

The invention discloses a vanadium-aluminum alloy production method, and belongs to the technical field of metallurgy. The technical effects that the rate and quality of finished products of vanadium-aluminum alloy are improved, the impurity content of the vanadium-aluminum alloy is reduced, the production scale of the vanadium-aluminum alloy is broadened, and the cost of the vanadium-aluminum alloy is reduced are achieved. The vanadium-aluminum alloy production method comprises the steps that the first batch of vanadium oxide and the first batch of aluminum are added into a graphite crucibleprovided with a drilled cover, ignition is conducted for aluminothermic reduction reaction, after reaction is completed, the follow-up batch of vanadium oxide and the follow-up batch of aluminum are added in sequence, aluminothermic reduction reaction is conducted till all vanadium oxide and aluminum are added and reacted completely, slag is separated from the alloy, and the vanadium-aluminum alloy is obtained. According to the method, the batched adding mode is adopted, the graphite crucible provided with the drilled cover is used as a smelting furnace body, the production scale is expanded,the vanadium yield is increased, a slagging cooling agent does not need to be added, the cost is lower, the obtained alloy is higher in purity and quality, and the industry large scale production requirements are completely met.

Description

technical field [0001] The invention belongs to the technical field of metallurgy, and in particular relates to a production method of vanadium-aluminum alloy. Background technique [0002] The aluminothermic method is a method of obtaining high-melting-point metal elements by using the reducibility of aluminum. Thermite refers to a mixture of aluminum and metal oxides. After mixing aluminum powder with a certain amount of high-melting-point metal oxides (such as iron oxide, etc.), and igniting it with a magnesium strip, it can be seen that the aluminum powder reacts violently at a higher temperature, and the reaction releases a large amount of heat and emits dazzling light. of light. The product is simple substance of alumina and the refractory metal. The aluminothermic reaction is very intense, so it is difficult to extinguish after ignition, and it is difficult to control the reaction process after ignition. The reaction is to put the charge into the furnace, and imme...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C27/02C22C1/02C22B5/04C22B34/22
CPCC22C27/025C22B5/04C22B34/22C22C1/02
Inventor 陈海军孙朝晖尹丹凤
Owner PANGANG GROUP RESEARCH INSTITUTE CO LTD
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