Vanadium-aluminum alloy and preparation method thereof
A vanadium-aluminum alloy and vanadium pentoxide technology, applied in the field of metallurgy, can solve problems such as limiting the output of vanadium-aluminum alloys and increasing manufacturing costs, and achieve the effects of facilitating the separation of slag and gold, high alloy quality, and high alloy purity
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[0015] The preparation method of vanadium-aluminum alloy uses vanadium pentoxide and aluminum particles as raw materials, adopts the mode of one-time laying, and ignites and reduces to obtain vanadium-aluminum alloy; wherein, the weight ratio of vanadium pentoxide to aluminum particles is 1.15-1.8: 1. A graphite crucible with an inner wall coated with fused magnesia and a lid with a hole is used as a smelting furnace.
[0016] In order to further reduce the content of impurities in the vanadium-aluminum alloy, the purity of the vanadium pentoxide is ≥99.7%, and the purity of the aluminum particles is ≥99.85%.
[0017] Preferably, in the above-mentioned preparation method of vanadium-aluminum alloy, the diameter of the hole is 1-2 cm, and the hole density of the cover with holes is 15-20 holes / m 2 .
[0018] In the method of the present invention, excessive aluminum particles are used to form vanadium-aluminum alloy through the fusion of aluminum particles and metal vanadium d...
Embodiment 1
[0021] 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 clay The aluminothermic reduction reaction was carried out in a graphite crucible with a drilled cover. After the aluminothermic reaction was completed, it was left to stand for 30 minutes to obtain 62.3kg of vanadium-aluminum alloy products, which contained V 90.06wt%, Al 9.63wt%, Fe 0.15wt%, Si 0.11wt%.
Embodiment 2
[0023] Take 100kg of vanadium pentoxide and 63.7kg of aluminum particles as raw materials, the weight ratio of vanadium pentoxide and aluminum particles is 1.58:1, use analytically pure barium peroxide as the ignition agent, and coat the inner wall with fused magnesium fire clay The thermite reduction reaction was carried out in a graphite crucible with a perforated lid. After the aluminothermic reaction was completed, it was left to stand for 30 minutes to obtain 66.76kg of vanadium-aluminum alloy product, which contained 85.04wt% of V, 14.6wt% of Al, 0.12wt% of Fe and 0.19wt% of Si.
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