CAS OpenIR  > 研究所(批量导入)
Alumina Hydrate Polymorphism Control in Al-Water Reaction Crystallization by Seeding to Change the Metastable Zone Width
Wang, Hongqi1,2; Wang, Zhi1; Liu, Ling1,2; Gong, Xuzhong1; Wang, Mingyong1
2016-02-01
发表期刊CRYSTAL GROWTH & DESIGN
ISSN1528-7483
卷号16期号:2页码:1056-1062
摘要

The polymorph of alumina hydrate from Al-H2O reaction crystallization is hard to control due to its complexity. In this study, seeding is adopted to control the polymorphism by changing the metastable zone width (MSZW) which provides the easiest way to quantify the system stability. First, the influence of seed amount on the MSZW and polymorph was investigated. The MSZW declines with the increase of seed loading, and the critical seed loading for obtaining single gibbsite phase products is determined to be 15 g/L. Then the effect of seeding time on the polymorph indicates that the seed should be added before nucleation occurrence in order to control polymorphism effectively. The MSZW and polymorph of both seed-free and seeded Al-H2O reaction crystallization is controlled by changing the temperature and alkali concentration. It is found that if the critical concentration is lower than the saturation solubility curve of bayerite in the diagram, single gibbsite phase crystals can be obtained. Besides, the mechanism for polymorph control by changing the MSZW mainly includes the epitaxial growth and secondary nucleation which dominates the process under 90 and 60 degrees C, respectively.

关键词Ab-initio Gibbsite Bayerite Nucleation Stability Hydroxide Solvent
文章类型Article
学科领域Chemistry, Multidisciplinary ; Crystallography ; Materials Science, Multidisciplinary ; Chemistry ; Crystallography ; Materials Science
WOS标题词Science & Technology ; Physical Sciences ; Technology
DOI10.1021/acs.cgd.5b01620
URL查看原文
收录类别SCI
语种英语
关键词[WOS]Ab-initio ; Gibbsite ; Bayerite ; Nucleation ; Stability ; Hydroxide ; Solvent
WOS研究方向Chemistry ; Crystallography ; Materials Science
WOS类目Chemistry, Multidisciplinary ; Crystallography ; Materials Science, Multidisciplinary
项目资助者National Natural Science Foundation of China(51422405 ; 51374192)
WOS记录号WOS:000369773300060
引用统计
文献类型期刊论文
条目标识符http://ir.ipe.ac.cn/handle/122111/20668
专题研究所(批量导入)
通讯作者Wang, Zhi
作者单位1.Chinese Acad Sci, Inst Proc Engn, Natl Engn Lab Hydromet Cleaner Prod Technol, Beijing 100190, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
推荐引用方式
GB/T 7714
Wang, Hongqi,Wang, Zhi,Liu, Ling,et al. Alumina Hydrate Polymorphism Control in Al-Water Reaction Crystallization by Seeding to Change the Metastable Zone Width[J]. CRYSTAL GROWTH & DESIGN,2016,16(2):1056-1062.
APA Wang, Hongqi,Wang, Zhi,Liu, Ling,Gong, Xuzhong,&Wang, Mingyong.(2016).Alumina Hydrate Polymorphism Control in Al-Water Reaction Crystallization by Seeding to Change the Metastable Zone Width.CRYSTAL GROWTH & DESIGN,16(2),1056-1062.
MLA Wang, Hongqi,et al."Alumina Hydrate Polymorphism Control in Al-Water Reaction Crystallization by Seeding to Change the Metastable Zone Width".CRYSTAL GROWTH & DESIGN 16.2(2016):1056-1062.
条目包含的文件
文件名称/大小 文献类型 版本类型 开放类型 使用许可
Alumina Hydrate Poly(7677KB)期刊论文出版稿开放获取CC BY-NC-SA浏览 请求全文
个性服务
推荐该条目
保存到收藏夹
查看访问统计
导出为Endnote文件
谷歌学术
谷歌学术中相似的文章
[Wang, Hongqi]的文章
[Wang, Zhi]的文章
[Liu, Ling]的文章
百度学术
百度学术中相似的文章
[Wang, Hongqi]的文章
[Wang, Zhi]的文章
[Liu, Ling]的文章
必应学术
必应学术中相似的文章
[Wang, Hongqi]的文章
[Wang, Zhi]的文章
[Liu, Ling]的文章
相关权益政策
暂无数据
收藏/分享
文件名: Alumina Hydrate Polymorphism Control in Al-Water Reaction Crystallization by Seeding to Change the Metastable Zone Width.pdf
格式: Adobe PDF
所有评论 (0)
暂无评论
 

除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。