Crystallization and Separation of Potassium Vanadate in Highly Concentrated Potassium Hydroxide Solution

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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
会议名称	International Conference on Chemical, Material and Metallurgical Engineering (ICCMME 2011)
会议日期	DEC 23-25, 2011
会议地点	Beihai, PEOPLES R CHINA
关键词	Vanadium slag K3VO4 Crystallization Sub-Molten Salt VANADIUM
页码	655-662
中文摘要	The 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%.
收录类别	CPCI
会议网址	://WOS:000308830100130
会议录	ADVANCES IN CHEMICAL ENGINEERING, PTS 1-3 丛书: Advanced Materials Research
会议录出版者	Trans Tech Publications Ltd
语种	英语
内容类型	会议论文
源URL	[http://ir.ipe.ac.cn/handle/122111/11276]
专题	过程工程研究所_研究所（批量导入）
推荐引用方式 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]. 见:International Conference on Chemical, Material and Metallurgical Engineering (ICCMME 2011). Beihai, PEOPLES R CHINA. DEC 23-25, 2011.://WOS:000308830100130.