CAS OpenIR  > 湿法冶金清洁生产技术国家工程实验室
Nucleation and morphology of sodium metaborate dihydrate from NaOH solution
Qin, Shiyue1,2; Zhang, Yifei1,2; Zhang, Yi1,2
2016
Source PublicationJOURNAL OF CRYSTAL GROWTH
ISSN0022-0248
Volume433Issue:JANPages:143-147
AbstractSzaibelyite ore is an important boron mineral used for producing boron compounds. Sodium metaborate dihydrate can be prepared through leaching of the szaibelyite ore in NaOH solution and the leaching liquor mainly consists of NaBO2 and NaOH. In this work, the induction time for sodium metaborate dihydrate crystallized in NaOH solution from 30 to 50 degrees C was systematically investigated. The primary nucleation and growth mechanism were determined on the basis of the induction time measurements. The crystals of various morphologies under different crystallization conditions were obtained: the rodlike crystals preferred to form at low temperature, while the plate-like crystals formed at high temperature; when the crystallization temperature was 30 degrees C, the flat rod-like crystals formed at low supersaturation, while the slim rod-like crystals formed at high supersaturation. Finally, the growth mechanism of the sodium metaborate dihydrate was identified with various models and the 2D nucleation-mediated model gave satisfactory fitting results. (C) 2015 Elsevier B.V. All rights reserved.
KeywordCrystal Morphology Induction Time Primary Nucleation Growth Mechanism Sodium Metaborate Dihydrate
SubtypeArticle
WOS HeadingsScience & Technology ; Physical Sciences ; Technology
DOI10.1016/j.jcrysgro.2015.10.012
Indexed BySCI
Language英语
WOS KeywordINDUCTION-TIME ; PERBORATE TETRAHYDRATE ; CRYSTALLIZATION ; KINETICS ; MECHANISM ; NABO2 ; NABH4 ; NAB(OH)(4)CENTER-DOT-2H(2)O ; PRECIPITATION ; GROWTH
WOS Research AreaCrystallography ; Materials Science ; Physics
WOS SubjectCrystallography ; Materials Science, Multidisciplinary ; Physics, Applied
Funding OrganizationNational 863 Project of China(2011AA060701) ; National Natural Science Foundation of China(21276258)
WOS IDWOS:000364819900023
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Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/19860
Collection湿法冶金清洁生产技术国家工程实验室
Affiliation1.Natl Engn Lab Hydromet Cleaner Prod Technol, Beijing 100190, Peoples R China
2.Chinese Acad Sci, Inst Proc Engn, Key Lab Green Proc & Engn, Beijing 100190, Peoples R China
Recommended Citation
GB/T 7714
Qin, Shiyue,Zhang, Yifei,Zhang, Yi. Nucleation and morphology of sodium metaborate dihydrate from NaOH solution[J]. JOURNAL OF CRYSTAL GROWTH,2016,433(JAN):143-147.
APA Qin, Shiyue,Zhang, Yifei,&Zhang, Yi.(2016).Nucleation and morphology of sodium metaborate dihydrate from NaOH solution.JOURNAL OF CRYSTAL GROWTH,433(JAN),143-147.
MLA Qin, Shiyue,et al."Nucleation and morphology of sodium metaborate dihydrate from NaOH solution".JOURNAL OF CRYSTAL GROWTH 433.JAN(2016):143-147.
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