Method for separating iron from vanadium titano-magnetite
A technology for vanadium-titanium magnetite and iron selection, which is applied in the field of metallurgy, can solve the problems of high energy consumption for smelting metallized pellets, poor separation effect of iron and vanadium-titanium, dispersion of vanadium-titanium, etc., to achieve high-efficiency utilization, The effect of reducing reaction energy consumption and reducing system reduction temperature
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Embodiment 1
[0044] like figure 1 Shown, the present embodiment carries out the operation of vanadium-titanium-magnetite iron selection according to the following methods:
[0045] (1) Take 10g of vanadium-titanium magnetite, grind the ore to pass through a -80 mesh sieve, add 1.91g of graphite, 0.71g of PVA, 0.3g of anhydrous sodium carbonate, 0.1g of ammonium carbonate and 0.5ml of water, and press the ball after mixing;
[0046] (2) Place the pellets obtained in step (1) in a rotary kiln, feed in natural gas, heat up to 1000° C. to reduce the pellets for 1 hour, and water quench and cool after the reduction to obtain the reduced product;
[0047] (3) the reduction product that step (2) is obtained is crushed, and the ball milling into a particle diameter is a fine powder of -200 mesh. In the magnetic separation tube, the magnetic field intensity is controlled to be 70mT for magnetic separation. After the magnetic separation, a magnetic product and a non-magnetic product are obtained. M...
Embodiment 2
[0050] (1) Take 10g of vanadium-titanium magnetite, grind the ore to pass through a -200 mesh sieve, add 2.39g of graphite, 0.37g of starch, 0.3g of anhydrous sodium carbonate, 0.3g of ammonium carbonate and 0.6ml of water, and press the ball after mixing;
[0051] (2) Place the pellets obtained in step (1) in a rotary kiln, feed in natural gas, heat up to 1200° C. to reduce the pellets for 2 hours, and water quench and cool after the reduction to obtain the reduced product;
[0052] (3) the reduction product that step (2) is obtained is crushed, and the ball milling into a particle diameter is a fine powder of -200 mesh, and in the magnetic separation tube, the magnetic field intensity is controlled to be 35mT for magnetic separation, and magnetic product and non-magnetic product are obtained after magnetic separation, Metallic iron accounts for 98% of the total iron in the magnetic products.
[0053] The obtained magnetic product is used for converter steelmaking or powder m...
Embodiment 3
[0055] (1) Take 10g of vanadium-titanium magnetite, grind it to pass through a -120 mesh sieve, add 3.58g of petroleum coke, 0.68g of PVA, 0.2g of anhydrous sodium carbonate, 0.2g of ammonium carbonate and 0.8ml of water, mix and press the ball ;
[0056] (2) Place the pellets obtained in step (1) in a pusher kiln, feed blast furnace gas, heat up to 1100° C. to reduce the pellets for 1.5 hours, and water quench and cool after the reduction to obtain the reduced product;
[0057] (3) the reduction product that step (2) is obtained is crushed, and the ball milling into a particle diameter is a fine powder of -400 mesh, and in the magnetic separation tube, the magnetic field intensity is controlled to be 100mT for magnetic separation, and magnetic product and non-magnetic product are obtained after magnetic separation, Metallic iron accounts for 95% of the total iron in the magnetic products.
[0058] The obtained magnetic product is used for converter steelmaking or powder meta...
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