CAS OpenIR  > 湿法冶金清洁生产技术国家工程实验室
Precipitating sandy aluminium hydroxide from sodium aluminate solution by the neutralization of sodium bicarbonate
Li, Yan1,2; Zhang, Yifei1; Yang, Chao1; Zhang, Yi1; Zhang, YF
2009-08-01
Source PublicationHYDROMETALLURGY
ISSN0304-386X
Volume98Issue:1-2Pages:52-57
AbstractIn the sinter process for alumina production, it is still difficult to produce sandy aluminium hydroxide by the carbonation of sodium aluminate solution. Therefore, a precisely controllable and feasible process for the precipitation of sandy aluminium hydroxide from the supersaturated sodium aluminate solution neutralized by sodium bicarbonate aqueous solution is proposed for the first time, in which the neutralization reagent (NaHCO(3)) can be efficiently recycled by the carbonation of the produced sodium carbonate aqueous solution. The influencing factors of the precipitation, i.e. the pH value, the initial NaOH concentration, the temperature and the addition rate of neutralization agent, were investigated. All the aluminium hydroxides precipitated in the research were identified as gibbsite type. The gibbsite products had regular globular morphology and narrow size distribution whose minimum residue on a 44 mu m mesh was 92-94%. (C) 2009 Elsevier B.V. All rights reserved.
KeywordPrecipitation Sodium Aluminate Solution Sodium Bicarbonate Solution Aluminium Hydroxide
SubtypeArticle
WOS HeadingsScience & Technology ; Technology
DOI10.1016/j.hydromet.2009.03.011
Indexed BySCI
Language英语
WOS KeywordGIBBSITE ; CRYSTALLIZATION ; MORPHOLOGY ; EVOLUTION ; LIQUORS ; SIZE
WOS Research AreaMetallurgy & Metallurgical Engineering
WOS SubjectMetallurgy & Metallurgical Engineering
WOS IDWOS:000267932100007
Citation statistics
Cited Times:21[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Version出版稿
Identifierhttp://ir.ipe.ac.cn/handle/122111/6619
Collection湿法冶金清洁生产技术国家工程实验室
Corresponding AuthorZhang, YF
Affiliation1.Chinese Acad Sci, Inst Proc Engn, Key Lab Green Proc & Engn, Beijing 100190, Peoples R China
2.Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China
Recommended Citation
GB/T 7714
Li, Yan,Zhang, Yifei,Yang, Chao,et al. Precipitating sandy aluminium hydroxide from sodium aluminate solution by the neutralization of sodium bicarbonate[J]. HYDROMETALLURGY,2009,98(1-2):52-57.
APA Li, Yan,Zhang, Yifei,Yang, Chao,Zhang, Yi,&Zhang, YF.(2009).Precipitating sandy aluminium hydroxide from sodium aluminate solution by the neutralization of sodium bicarbonate.HYDROMETALLURGY,98(1-2),52-57.
MLA Li, Yan,et al."Precipitating sandy aluminium hydroxide from sodium aluminate solution by the neutralization of sodium bicarbonate".HYDROMETALLURGY 98.1-2(2009):52-57.
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