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Solubility of Al2O3 in the Na2O-Al2O3-H2O-CH3OH System at (30 and 60) degrees C
Zhang, Ying1,2; Zheng, Shili1; Du, Hao1; Wang, Shaona1; Zhang, Yi1; Zheng, SL
2010-03-01
Source PublicationJOURNAL OF CHEMICAL AND ENGINEERING DATA
ISSN0021-9568
Volume55Issue:3Pages:1237-1240
AbstractTo realize the objective of high alumina yield and a high molar Na2O/Al2O3 ratio in caustic solutions for Bayer plants, this paper presents the solubility of Al2O3 in methanol-water solvent mixtures with a fixed mass ratio of methanol to water 1:1 at (30 and 60)degrees C and containing various Na2O concentrations. The Al2O3 solubility in the Na2O-Al2O3-H2O-CH3OH quaternary system increases with an increase of Na2O concentration, reaching maximum values of 1.70% and 2.48% by weight at (30 and 60) degrees C, respectively. Then, the solubility decreases with a further increase in the Na2O concentration. The equilibrium solids are aluminum hydroxide Al(OH)(3) and mono-sodium aluminate hydrate Na2O center dot Al2O3 center dot 2.5H(2)O in the different alkali concentration regions. The data show that the solubility of Al2O3 in the Na2O-Al2O3-H2O-CH3OH quaternary system is much lower than that in the Na2O-Al2O3-H2O ternary system.
SubtypeArticle
WOS HeadingsScience & Technology ; Physical Sciences ; Technology
DOI10.1021/je900611g
Indexed BySCI
Language英语
WOS Research AreaChemistry ; Engineering
WOS SubjectChemistry, Multidisciplinary ; Engineering, Chemical
WOS IDWOS:000275328000028
Citation statistics
Cited Times:5[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Version出版稿
Identifierhttp://ir.ipe.ac.cn/handle/122111/6201
Collection湿法冶金清洁生产技术国家工程实验室
Corresponding AuthorZheng, SL
Affiliation1.Chinese Acad Sci, Natl Engn Lab Hydrometallurg Cleaner Prod Technol, Key Lab Green Proc & Engn, Inst Proc Engn, Beijing 100190, Peoples R China
2.Chinese Acad Sci, Grad Sch, Beijing 100049, Peoples R China
Recommended Citation
GB/T 7714
Zhang, Ying,Zheng, Shili,Du, Hao,et al. Solubility of Al2O3 in the Na2O-Al2O3-H2O-CH3OH System at (30 and 60) degrees C[J]. JOURNAL OF CHEMICAL AND ENGINEERING DATA,2010,55(3):1237-1240.
APA Zhang, Ying,Zheng, Shili,Du, Hao,Wang, Shaona,Zhang, Yi,&Zheng, SL.(2010).Solubility of Al2O3 in the Na2O-Al2O3-H2O-CH3OH System at (30 and 60) degrees C.JOURNAL OF CHEMICAL AND ENGINEERING DATA,55(3),1237-1240.
MLA Zhang, Ying,et al."Solubility of Al2O3 in the Na2O-Al2O3-H2O-CH3OH System at (30 and 60) degrees C".JOURNAL OF CHEMICAL AND ENGINEERING DATA 55.3(2010):1237-1240.
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