High-concentration polyaluminum chloride: Preparation and effects of the   Al concentration on the distribution and transformation of Al species

doi:10.1016/j.cej.2009.08.007

CORC > 北京大学 > 环境科学与工程学院

	High-concentration polyaluminum chloride: Preparation and effects of the Al concentration on the distribution and transformation of Al species
	Zhao, Hua-Zhang ; Liu, Chuan ; Xu, Yi ; Ni, Jin-Ren
刊名	chemical engineering journal
	2009
关键词	Polyaluminum chloride Al species Preparation Concentration Transformation NUCLEAR-MAGNETIC-RESONANCE HYDROXYALUMINUM SOLUTIONS ALUMINUM(III) HYDROLYSIS COAGULATION AL-27 SPECIATION PRECIPITATION AL-13 WATER REMOVAL
DOI	10.1016/j.cej.2009.08.007
英文摘要	Using an instantaneous base-feeding method and a batch-feeding method, high-concentration polyaluminum chloride (PACl) products were prepared employing CaO as the basification reagent. The distribution and transformation of the Al species of PACl was explored for the first time over a broad total Al concentration (Al(T)) range. There is always an optimal basicity (B value) at which the product has the highest Al(b) content, whether Al(T) is high or low. The optimal B value and the highest Al(b) content obtained both decrease with increasing Al(T). When the B value is lower than optimal, the overall reaction mainly leads to the production of Al(b); when the B value is higher, the reaction leads to the production of Alc. During the dilution process, high B value PACl has a tendency towards Al(b) formation, while low B value PACl favors Alc formation. The transformation behaviors of Al species are influenced by Al(T) in the preparation or dilution process. (C) 2009 Elsevier B. V. All rights reserved.; http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000274769500068&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=8e1609b174ce4e31116a60747a720701 ; Engineering, Environmental; Engineering, Chemical; SCI(E); EI; 19; ARTICLE; 1-2; 528-533; 155
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/158503]
专题	环境科学与工程学院
推荐引用方式 GB/T 7714	Zhao, Hua-Zhang,Liu, Chuan,Xu, Yi,et al. High-concentration polyaluminum chloride: Preparation and effects of the Al concentration on the distribution and transformation of Al species[J]. chemical engineering journal,2009.
APA	Zhao, Hua-Zhang,Liu, Chuan,Xu, Yi,&Ni, Jin-Ren.(2009).High-concentration polyaluminum chloride: Preparation and effects of the Al concentration on the distribution and transformation of Al species.chemical engineering journal.
MLA	Zhao, Hua-Zhang,et al."High-concentration polyaluminum chloride: Preparation and effects of the Al concentration on the distribution and transformation of Al species".chemical engineering journal (2009).