Method of vanadium slag pretreatment desilication and medium circulation
A medium circulation and pretreatment technology, applied in the fields of chemical industry and metallurgy, can solve the problems of low desiliconization efficiency, high cost, complicated process, etc., and achieve the effect of good desiliconization effect, low cost and simple process
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Embodiment 1
[0035] Embodiment 1 adopts the inventive method to process vanadium slag
[0036] Take 20 tons of crude vanadium slag with a particle size of 2-3 cm, add 100 cubic meters of water, 10 tons of sodium hydroxide, 10 tons of calcium oxide and 30 tons of steel balls, including 20 tons of 60-80 mm steel balls and 100-120 mm steel balls. 7.5 tons of balls, 2.5 tons of 300-350mm steel balls, ball milled at 800rpm for 5 hours, and the obtained slurry was separated by a roller sieve with an aperture of 0.5 cm and a length of 5 meters to obtain iron particles and coarsely divided slurry. The particles are returned to the ball mill for secondary ball milling to recover vanadium slag. The slurry is further passed through a 120-mesh vibrating sieve, and the fine iron particles on the sieve are washed with clean water and then returned to the converter as a coolant for vanadium extraction. The selected slurry enters a 300-cubic settling tank and settles for 4 hours to obtain lye and refined...
Embodiment 2
[0037] Embodiment 2 adopts the inventive method to process vanadium slag
[0038] Take 20 tons of crude vanadium slag with a particle size of 3-5 cm, add 120 cubic meters of water, 10 tons of potassium hydroxide, 15 tons of calcium oxide and 40 tons of steel balls, including 30 tons of 60-80 mm steel balls and 100-120 mm steel balls. 8 tons of balls, 2 tons of 300-350mm steel balls, ball milled at 900rpm for 2 hours, and the obtained slurry was separated by a roller sieve with an aperture of 0.5 cm and a length of 5 meters to obtain iron particles and coarsely divided slurry. The particles are returned to the ball mill for secondary ball milling to recover vanadium slag. The slurry is further passed through a 120-mesh vibrating sieve, and the fine iron particles on the sieve are washed with clean water and then returned to the converter as a coolant for vanadium extraction. The selected slurry enters a 300 cubic sedimentation tank and settles for 3 hours to obtain lye and ref...
Embodiment 3
[0039] Embodiment 3 adopts the inventive method to process vanadium slag
[0040]Take 20 tons of crude vanadium slag with a particle size of 4-5 cm, add 150 cubic meters of water, 30 tons of sodium carbonate, 5 tons of calcium oxide and 50 tons of steel balls, including 30 tons of 60-80 mm steel balls and 100-120 mm steel balls 15 tons, 5 tons of 300-350mm steel balls, ball milling at 600rpm for 7 hours, the obtained slurry is separated by a roller sieve with a hole diameter of 0.5 cm and a length of 5 meters to obtain iron particles and coarsely divided slurry, large iron particles Return to the ball mill for secondary ball milling to recover vanadium slag. The slurry is further passed through a 120-mesh vibrating sieve, and the fine iron particles on the sieve are washed with clean water and then returned to the converter as a coolant for vanadium extraction. The selected slurry enters a 300 cubic sedimentation tank and settles for 4 hours to obtain lye and refined vanadium...
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