Production method of low-phosphorous ferrovanadium
A production method, phosphorus and vanadium technology, applied in the field of metallurgy, can solve problems such as no major breakthroughs
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Embodiment 1
[0015] (1) First-stage reduction: mix 220 parts by weight of steel shavings, 80 parts by weight of ferrosilicon, 60 parts by weight of vanadium pentoxide and 250 parts by weight of white ash, and then add them to the furnace. The voltage is adjusted to 175V and the current is 2650A. After the physical and chemical materials are cleared, adjust the alkalinity of the slag to 2.5. If the alkalinity is low, add an appropriate amount of white ash, if the alkalinity is high, add slag to reduce the alkalinity of the material. Adjust the temperature to 1600 degrees, then add 60 parts by weight of ferrosilicon to reduce, take the sticky slag sample to observe, when the slag color is light yellow, the reaction is sufficient, then add 12 parts by weight of aluminum block to reduce, reduce to low vanadium pentoxide content in the lean slag Pour out the lean residue at 0.5%.
[0016] (2) Second-stage reduction: add 160 parts by weight of vanadium pentoxide and 320 parts by weight of white ash...
Embodiment 2
[0021] (1) First-stage reduction: weigh 110 parts by weight of steel shavings, 46 parts by weight of ferrosilicon, 40 parts by weight of vanadium pentoxide and 145 parts by weight of white ash, and then add them into the furnace. The voltage is adjusted to 165V and the current It is 2550A. After the material is cleared, adjust the slag alkalinity to 2.0. If the alkalinity is low, add an appropriate amount of white ash, if the alkalinity is high, add slag to reduce the alkalinity of the material. Adjust the temperature to 1550 degrees, then add 34 parts by weight of ferrosilicon to reduce, take the sticky slag sample to observe, when the slag color is light yellow, the reaction is full, add 7 parts by weight of aluminum block to reduce, reduce to the vanadium pentoxide content in the lean slag Pour out lean residue at 0.5%;
[0022] (2) Second-stage reduction: add 96 parts by weight of vanadium pentoxide and 190 parts by weight of white ash into the furnace, adjust the voltage to ...
Embodiment 3
[0028] (1) First-stage reduction: weigh 59 parts by weight of steel shavings, 59 parts by weight of ferrosilicon, 50 parts by weight of vanadium pentoxide and 186 parts by weight of white ash, and then add them into the furnace. The voltage is adjusted to 170V and the current After the material is cleared, adjust the basicity of the slag to 2.3 and the temperature to 1585 degrees, and then add 42 parts by weight of ferrosilicon for reduction. After the reaction is complete, add 9 parts by weight of aluminum block to reduce and reduce to the lean slag pentoxide When the vanadium content is less than 0.5%, the lean slag is poured;
[0029] (2) Second-stage reduction: add 112 parts by weight of vanadium pentoxide and 248 parts by weight of white ash into the furnace, adjust the voltage to 170V, and the current to 2600A. After the materials are cleared, adjust the slag basicity to 2.3 and the temperature to 1590 degrees. , Then add 59 parts by weight of ferrosilicon to reduce, after ...
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