Preparation of Pseudo-boehmite and gamma-Al2O3 Granules by Polyaluminum Chloride I-Preparation Conditions

CORC > 生态环境研究中心 > 中国科学院生态环境研究中心 > 环境水质学国家重点实验室

	Preparation of Pseudo-boehmite and gamma-Al2O3 Granules by Polyaluminum Chloride I-Preparation Conditions
	He Jin-Song ; Zhao Chang-Wei ; Tu Meng-Bo ; Ni Fan ; Wang Tao ; Luan Zhao-Kun
刊名	CHINESE JOURNAL OF INORGANIC CHEMISTRY
	2010-09-10
卷号	26 期号:9 页码:1533-1538
关键词	polyaluminum chloride pseudo-boehmite granule preparation Al2O3 polyethylene glycol
中文摘要	Pseudo-boehmite granules and their derivatives gamma-Al2O3 were prepared from polyaluminum chloride by sol-gel method and oil-drop method. The samples were characterized by XRD, TEM and nitrogen adsorption-desorption techniques. The effects of pH value, Al species content of polyaluminum chloride, calcination temperature and surfactant on the physical properties of pseudo-boehmite granules were investigated. The results show that alumina hydrate is mainly pseudo-boehmite prepared at pH value near 8.5. Polyaluminum chloride with high content of Al-c enhances the surface area of granules. gamma-Al2O3 granules can be obtained at 450 degrees C to 750 degrees C. The surface area decreases and pore size increases while pore volume changes little with the increase of calcination temperature. At 1 000 degrees C, the granules show theta-Al2O3 and gamma-Al2O3 phases. With the increase of PEG molecular weight, the pore volume and pore size of gamma-Al2O3 granules increase. PEG10000 is most suitable for increasing surface area of gamma-Al2O3, with surface area of 326 m(2).g(-1) and pore volume of 0.55 cm(3).g(-1) obtained at 450 degrees C.
WOS记录号	WOS:000282806700002
内容类型	期刊论文
源URL	[http://ir.rcees.ac.cn/handle/311016/21269]
专题	生态环境研究中心_环境水质学国家重点实验室
推荐引用方式 GB/T 7714	He Jin-Song,Zhao Chang-Wei,Tu Meng-Bo,et al. Preparation of Pseudo-boehmite and gamma-Al2O3 Granules by Polyaluminum Chloride I-Preparation Conditions[J]. CHINESE JOURNAL OF INORGANIC CHEMISTRY,2010,26(9):1533-1538.
APA	He Jin-Song,Zhao Chang-Wei,Tu Meng-Bo,Ni Fan,Wang Tao,&Luan Zhao-Kun.(2010).Preparation of Pseudo-boehmite and gamma-Al2O3 Granules by Polyaluminum Chloride I-Preparation Conditions.CHINESE JOURNAL OF INORGANIC CHEMISTRY,26(9),1533-1538.
MLA	He Jin-Song,et al."Preparation of Pseudo-boehmite and gamma-Al2O3 Granules by Polyaluminum Chloride I-Preparation Conditions".CHINESE JOURNAL OF INORGANIC CHEMISTRY 26.9(2010):1533-1538.