Growth and agglomeration of boehmite in sodium aluminate solutions

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	Growth and agglomeration of boehmite in sodium aluminate solutions
	Wang, Z. ; Zhang, J. ; Xu, R. G. ; Guo, Z. C.
	2012
会议名称	Symposium on Light Metals / TMS Annual Meeting and Exhibition
会议日期	MAR 11-15, 2012
会议地点	Orlando, FL
关键词	Sodium aluminate solutions Boehmite Agglomeration degree Attrition index Precipitation ratio BAYER LIQUORS GIBBSITE PRECIPITATION SUPERSATURATION CRYSTALS HYDRARGILLITE TEMPERATURE PARAMETERS RATIO
页码	107-112
中文摘要	Boehmite precipitation is a new alternative way from sodium aluminate solutions to alumina, however, the too small particle size becomes one bottleneck for this methods replacing the current production route. Growth and agglomeration of crystals are the main factors influencing product size. The results show that the growth rate of boehmite is in a low range from 0.08 to 2.4 mu m/h. Thus, agglomeration of boehmite is a major means to enlarge the particle size of precipitation products from sodium aluminate solutions. By means of laser particle size analyzer and powder attrition index analyzer, the agglomeration efficiency was represented by combining agglomeration degree and attrition index. The influences of seed ratio, temperature, the molar ratio of Na2O to Al2O3 and organic additives on agglomeration were investigated. The alcohol type additives PPG increases precipitation ratio and agglomeration degree, but reduces the strength of products and makes attrition index increase.
收录类别	CPCI
会议网址	://WOS:000324538600019
会议录	Light Metals 2012
语种	英语
内容类型	会议论文
源URL	[http://ir.ipe.ac.cn/handle/122111/11247]
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	Wang, Z.,Zhang, J.,Xu, R. G.,et al. Growth and agglomeration of boehmite in sodium aluminate solutions[C]. 见:Symposium on Light Metals / TMS Annual Meeting and Exhibition. Orlando, FL. MAR 11-15, 2012.://WOS:000324538600019.