CAS OpenIR  > 湿法冶金清洁生产技术国家工程实验室
An innovative approach for pseudoboehmite precipitation from seeded sodium aluminate solutions
Cai, Weiquan1; Li, Huiquan2; Zhang, Guangxu1; Cai, WQ
2010-04-01
Source PublicationJOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS
ISSN0022-3697
Volume71Issue:4Pages:515-518
AbstractPrecipitation of boehmite from seeded sodium aluminate (SA) solutions for production of smelter grade alumina by calcination is in the early stage of development. However, the reported boehmites are usually well crystallized and actually most boehmites for activated aluminas are poorly crystallized and less ordered forms, which is also called pseudoboehmite. In the present study, an attempt has been made to find the appropriate precipitation conditions of pseudoboehmite from seeded SA solutions by inductively coupled plasma optical emission spectrometry (ICP-OES), X-ray diffraction (XRD), and transmission electron microscopy (TEM). It was found that pure pseudoboehmite showing minor morphology difference with the pseudoboehmite seed can be easily obtained under hydrothermal conditions at 373 K not less than 10 h or at 398 K not less than 3 h. The hydrothermal seed precipitation is a dynamic inhibited process that approximately consists of three stages, namely a fast precipitation stage, a slow precipitation stage and an analogously apparent equilibrium stage. However, the seeded precipitation under circulation reflux at approximate 0.1 MPa is not suitable for preparing pure pseudoboehmite because of by-products formation, such as gibbsite, nordstrandite, diaspore, etc. This work demonstrates that pseudoboehmite can be efficiently precipitated from seeded SA solutions under certain hydrothermal conditions. (C) 2009 Elsevier Ltd. All rights reserved.
KeywordInorganic Compounds Chemical Synthesis X-ray Diffraction Crystal Structure
SubtypeArticle
WOS HeadingsScience & Technology ; Physical Sciences
DOI10.1016/j.jpcs.2009.12.025
Indexed BySCI ; ISTP
Language英语
WOS KeywordBOEHMITE ; LIQUOR ; AREA
WOS Research AreaChemistry ; Physics
WOS SubjectChemistry, Multidisciplinary ; Physics, Condensed Matter
WOS IDWOS:000277055400026
Citation statistics
Cited Times:7[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Version出版稿
Identifierhttp://ir.ipe.ac.cn/handle/122111/6174
Collection湿法冶金清洁生产技术国家工程实验室
Corresponding AuthorCai, WQ
Affiliation1.Wuhan Univ Technol, Sch Chem Engn, State Key Lab Adv Technol Mat Synth & Proc, Wuhan 430070, Peoples R China
2.Chinese Acad Sci, Inst Proc Engn, Beijing 100080, Peoples R China
Recommended Citation
GB/T 7714
Cai, Weiquan,Li, Huiquan,Zhang, Guangxu,et al. An innovative approach for pseudoboehmite precipitation from seeded sodium aluminate solutions[J]. JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS,2010,71(4):515-518.
APA Cai, Weiquan,Li, Huiquan,Zhang, Guangxu,&Cai, WQ.(2010).An innovative approach for pseudoboehmite precipitation from seeded sodium aluminate solutions.JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS,71(4),515-518.
MLA Cai, Weiquan,et al."An innovative approach for pseudoboehmite precipitation from seeded sodium aluminate solutions".JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS 71.4(2010):515-518.
Files in This Item:
File Name/Size DocType Version Access License
20131119-1280-复件 1-s(366KB) 限制开放CC BY-NC-SAApplication Full Text
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Cai, Weiquan]'s Articles
[Li, Huiquan]'s Articles
[Zhang, Guangxu]'s Articles
Baidu academic
Similar articles in Baidu academic
[Cai, Weiquan]'s Articles
[Li, Huiquan]'s Articles
[Zhang, Guangxu]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Cai, Weiquan]'s Articles
[Li, Huiquan]'s Articles
[Zhang, Guangxu]'s Articles
Terms of Use
No data!
Social Bookmark/Share
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.