Kinetics on the Desiliconization during Alkaline Leaching of Titanium Slag

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	Kinetics on the Desiliconization during Alkaline Leaching of Titanium Slag
	Liu, J. H.; Chu, J. L.; Xue, T. Y.; Han, Y. F.; Qi, T.
	2011
会议名称	International Conference on Chemical Engineering and Advanced Materials
会议日期	MAY 28-30, 2011
会议地点	Changsha, PEOPLES R CHINA
关键词	kinetics desiliconization alkaline leaching titanium slag
页码	1322-1327
中文摘要	In order to reduce the silicon content to the maximum allowed value for the production of high-purity titanium dioxide, a hydrometallurgical process on the desiliconization during alkaline leaching of titanium slag under atmospheric pressure was studied. The effect of leaching temperature, initial NaOH concentration, leaching time and mass ratio of alkali to slag, on the efficiency of silicon removal were investigated. The results show that when the mass concentration of NaOH is 30%, mass ratio of alkali to slag 3:1, the leaching temperature 120 degrees C and the retention time about 120min, the content of silicon in solid is reduced to 0.45%. Simultaneously, the content of aluminum is reduced to 1.62%, without affecting the content of titanium. The kinetics on the desiliconization during alkaline leaching of titanium slag was carried out. The results show that under the leaching parameters mentioned above, the apparent activation energy is calculated to be 45.43kJ/mol.
收录类别	ISTP
会议网址	://WOS:000303359000267
会议录	FUNDAMENTAL OF CHEMICAL ENGINEERING, PTS 1-3 Book Series: Advanced Materials Research Volume: 233-235 Pages: 1322-1327 Part: 1-3
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/122111/11469]
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	Liu, J. H.,Chu, J. L.,Xue, T. Y.,et al. Kinetics on the Desiliconization during Alkaline Leaching of Titanium Slag[C]. 见:International Conference on Chemical Engineering and Advanced Materials. Changsha, PEOPLES R CHINA. MAY 28-30, 2011.://WOS:000303359000267.