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Crystallization and Separation of Potassium Vanadate in Highly Concentrated Potassium Hydroxide Solution
Yang, N.; Zheng, S. L.; Wang, S. N.; Qin, Y. L.; Xie, W. L.; Zhou, B. J.; Zhang, Y.
2012
Conference NameInternational Conference on Chemical, Material and Metallurgical Engineering (ICCMME 2011)
Source PublicationADVANCES IN CHEMICAL ENGINEERING, PTS 1-3 丛书: Advanced Materials Research
Pages655-662
Conference DateDEC 23-25, 2011
Conference PlaceBeihai, PEOPLES R CHINA
PublisherTrans Tech Publications Ltd
AbstractThe crystallization behavior of potassium vanadate from highly concentrated potassium hydroxide aqueous solution was investigated. The effect of various parameters including KOH concentration, V2O5 concentration, final crystallization temperature, cooling rate, stirring speed and additive amount of seed were examined. The optimal experimental conditions for K3VO4 crystallization were obtained as follows: KOH concentration 800 similar to 850 g/L, KOH-to-V2O5 mass ratio 8 similar to 9, stirring speed 200 r/min, crystallization temperature from 80 degrees C to 40 degrees C with natural cooling, and seed addition 2% wt. Under optimal conditions, the K3VO4 crystallization yield of 87% was obtained, and the purity of crystals was about 90%.
KeywordVanadium Slag K3vo4 Crystallization Sub-molten Salt Vanadium
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Indexed ByCPCI
Language英语
Document Type会议论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/11276
Collection研究所(批量导入)
Recommended Citation
GB/T 7714
Yang, N.,Zheng, S. L.,Wang, S. N.,et al. Crystallization and Separation of Potassium Vanadate in Highly Concentrated Potassium Hydroxide Solution[C]:Trans Tech Publications Ltd,2012:655-662.
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