Method for producing ferrovanadium by electric thermite method
An electroaluminothermic and ferrovanadium technology, applied in the field of ferrovanadium production, can solve the problems of increasing smelting cost, increasing energy consumption and the like, and achieve the effects of improving vanadium recovery rate and reducing production cost.
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example 1
[0025] Mix together 6000kg of vanadium trioxide, 2795kg of aluminum pellets, 2593kg of iron filings and 1800kg of calcium oxide to form metallurgical raw materials. Put the mixed metallurgical raw materials into an electric arc furnace with a nominal capacity of 8t for smelting. The smelting voltage is 150V, the current is 16000A, and the time is 120 minutes. When the aluminum content in the vanadium-iron alloy liquid is 5.6% and the smelting slag When the vanadium content is 1%, the slag is produced, thereby completing the reduction of vanadium oxides. Then enter the oxidation and refining stage of the vanadium-iron alloy liquid, add 800kg of ferrous oxide with a particle size of 0.9mm to the vanadium-iron alloy liquid in the electric arc furnace, wherein the smelting voltage is 135V, the current is 16000A, and the time is 20 minutes. After refining The aluminum content in the vanadium-iron alloy liquid is 0.22%. Next, the vanadium-iron alloy liquid and slag are poured into ...
example 2
[0027] Mix together 5000kg of vanadium pentoxide, 2700kg of aluminum pellets, 1850kg of iron filings and 1500kg of calcium oxide to form metallurgical raw materials. Put the mixed metallurgical raw materials into an electric arc furnace with a nominal capacity of 5t for smelting. The smelting voltage is 150V, the current is 16000A, and the time is 120 minutes. When the aluminum content in the vanadium-iron alloy liquid is 4.9% and the smelting slag When the vanadium content is 1%, the slag is produced, thereby completing the reduction of vanadium oxides. Then enter the oxidation and refining stage of the vanadium-iron alloy liquid, add 575kg of ferric oxide with a particle size of 0.9mm to the vanadium-iron alloy liquid in the electric arc furnace, wherein the smelting voltage is 135V, the current is 16000A, and the time is 20 minutes. After refining The aluminum content in vanadium iron water is 0.09%. Next, the vanadium-iron alloy liquid and slag are poured into the ingot m...
example 3
[0029]Mix together 2000kg of vanadium trioxide, 5000kg of vanadium pentoxide, 3630kg of aluminum particles, 2720kg of iron filings and 2100kg of calcium oxide to form metallurgical raw materials. Put the mixed metallurgical raw materials into an electric arc furnace with a nominal capacity of 8t for smelting. The smelting voltage is 150V, the current is 16000A, and the time is 120 minutes. When the aluminum content in the vanadium-iron alloy liquid is 5% and the smelting slag When the vanadium content is 1%, the slag is produced, thereby completing the reduction of vanadium oxides. Then enter the oxidation and refining stage of the vanadium-iron alloy liquid, put 850kg of ferric oxide with a particle size of 0.95mm into the ladle, and then inject the vanadium-iron alloy liquid in the electric arc furnace into the ladle. Next, pour the vanadium-iron alloy solution into the ingot mold, let it cool naturally, and then release the mold and quench it with water, so as to obtain the...
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