Method for recycling vanadium in waste containing vanadium
A recovery method and waste technology, applied in the field of vanadium chemical industry, can solve the problems of groundwater pollution, unreasonable storage, waste of vanadium resources, etc., to achieve the effect of eliminating pollution, solving storage problems, and improving recovery rate
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Embodiment 1
[0021] The vanadium-containing waste contains 5.24% total vanadium, and the vanadium-containing waste is mixed into the primary vanadium slag at a weight ratio of 2.0% to obtain a premixed material. The premixed material contains 6.44% total vanadium. The proportion of -100 mesh is 60%, the additive is sodium bisulfate, the added amount is 15.20% of the mass of the mixed material, the humidifying agent is industrial new water, and the added amount is 10.05% of the mass of the mixed material. The mixed materials are put into the kiln for roasting. During the roasting process, the clinker rolls naturally, the environment in the kiln is thorough, and the partitions are obvious. There is no agglomeration or ring formation, and the conversion rate is 91.23%. After the clinker leaves the kiln, it is treated with leaching agent wastewater, and then condensed water is leached to obtain a vanadium-containing solution. The vanadium yield of the vanadium-containing waste is 90.25%.
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Embodiment 2
[0024] The vanadium-containing waste contains 11.45% of total vanadium, and the vanadium-containing waste is mixed into the secondary vanadium slag at a weight ratio of 10.0% to obtain a premix. The premix contains 5.67% of total vanadium. The proportion of passing -100 mesh is 78%, the additive is sodium bicarbonate, and the addition amount is 3% of the mass of the mixed material, and the humidifying agent is industrial fresh water, and the added amount is 12.04% of the mass of the mixed material. The mixed materials are put into the kiln for roasting. During the roasting process, the clinker rolls naturally, the environment in the kiln is thorough, and the partitions are obvious. There is no agglomeration or ring formation, and the conversion rate is 90.15%. After the clinker leaves the kiln, the vanadium-containing solution is obtained by leaching with leaching agent production water, and the vanadium yield of the vanadium-containing waste is 89.24%.
[0025] Precipitate va...
Embodiment 3
[0027] The vanadium-containing waste contains 15.58% total vanadium, and the vanadium-containing waste is blended into the primary vanadium slag at a weight ratio of 15.0% to obtain a premix. The premix contains 6.24% total vanadium. The proportion of -100 mesh is 86%, the additive is a mass mixture of sodium chloride and sodium bisulfate, and the amount added is 20% of the mass of the mixed material. The humidifying agent is treated vanadium industrial wastewater, and the added amount is 8% of the mass of the mixed material. %. The mixed material is put into the kiln for roasting. During the roasting process, the clinker rolls naturally, the environment in the kiln is thorough, the division is obvious, there is no agglomeration or ring formation, and the conversion rate is 88.75%. After the clinker leaves the kiln, it is leached with a low-concentration vanadium solution to obtain a vanadium-containing solution, and the vanadium-containing waste yield is 87.44%.
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