Phosphorus-eliminating purification process of vanadium-containing chamotte leachate
A vanadium clinker and leaching solution technology, which is applied in the field of phosphorus removal and purification of vanadium-containing clinker leaching solution, can solve the problems of low vanadium conversion rate, low vanadium leaching rate, uneven mixing, etc., achieve low vanadium loss and significant economic benefits , good effect
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Embodiment 1
[0030] Raw materials used, containing [V] 35.63g / L, [P] 59mg / L, [Fe] 28mg / L, [Al] 21mg / L, [Si] 810mg / L, pH 10 vanadium-containing clinker leachate 50m 3 Enter the mixing tank, turn on the steam heating at the same time, when the vanadium-containing clinker leachate is sufficient, turn on the compressed air to stir, and quantitatively heat the prepared dephosphorization purifying agent solution to 0.9m 3 (about 80Kg), continue to heat and stir to make it fully react, and then stir for 10 minutes when the solution reaches 80±5°C, then add 50 liters of polyacrylamide solution with a concentration of 3g / L, stir for 10 minutes, mix well and input Go to clarification tank for clarification, obtain [V]35.51g / L, [P]<10mg / L, [Fe]<10mg / L, [Al]<10mg / L, the purified vanadium liquid of [Si]281mg / L, through The underflow slag produced by pressure filtration contains 8.27% of ΣV, 6.38% of acid-soluble vanadium, 1.89% of insoluble vanadium, and 2.37% of P.
Embodiment 2
[0032] Raw materials used, containing [V] 27.46g / L, [P] 39mg / L, [Fe] 23mg / L, [Al] 19mg / L, [Si] 785mg / L, pH 9.5 Vanadium-containing clinker leachate 50m 3 Enter the mixing tank, turn on the steam heating at the same time, and when the vanadium-containing clinker leachate is sufficient, turn on the compressed air to stir, and quantitatively heat the prepared dephosphorization purifying agent solution to 0.8m 3 (about 71Kg), continue heating and stirring to make it fully react, and stir for another 10 minutes when the solution reaches 80±5°C, then add 50 liters of polyacrylamide solution with a concentration of 3g / L, stir for 10 minutes, mix well and input Clarify to clarification tank, obtain [V] 27.34g / L, [P]<10mg / L, [Fe]<10mg / L, [Al]<10mg / L, the purified vanadium liquid of [Si]298mg / L, through The underflow slag produced by pressure filtration contains ∑V 7.65%, acid-soluble vanadium 6.03%, insoluble vanadium 1.62%, and P 2.24%.
Embodiment 3
[0034] Raw materials used, containing [V] 33.50g / L, [P] 61mg / L, [Fe] 25mg / L, [Al] 18mg / L, [Si] 698mg / L, pH 10 vanadium-containing clinker leachate 50m 3 Enter the mixing tank, turn on the steam heating at the same time, and when the vanadium-containing clinker leachate is sufficient, turn on the compressed air to stir, and quantitatively heat the prepared dephosphorization purifying agent solution to 0.8m 3 (about 71Kg), continue heating and stirring to make it fully react, and stir for another 10 minutes when the solution reaches 80±5°C, then add 50 liters of polyacrylamide solution with a concentration of 3g / L, stir for 10 minutes, mix well and input Clarify to clarification tank, obtain [V]33.39g / L, [P]<10mg / L, [Fe]<10mg / L, [Al]<10mg / L, the purified vanadium liquid of [Si]244mg / L, through The underflow slag produced by pressure filtration contains ∑V 8.81%, acid-soluble vanadium 6.81%, insoluble vanadium 1.92%, and P 3.75%.
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