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Crystallization kinetics of Mg-borates from MgO center dot 3B(2)O(3)-18%MgSO4-H2O supersaturated solution
Ma, YT; Xia, SP; Gao, SY
2001-11-01
Source PublicationACTA PHYSICO-CHIMICA SINICA
Volume17Issue:11Pages:1021-1026
SubtypeArticle
AbstractThe supersaturated solution of MgO . 3B(2)O(3)-18% MgSO4-H2O was prepared and kept in a thermostat of (20 +/- 0.1) degreesC. The crystallization processes of Mg-borates from the solution have been studied by the kinetic method. With the aid of simplex optinum method and digital integration as well as runge-kutta digital solution of differential equation system, the experimental data have been fitted and the kinetic parameters have been evaluated by computer. The crystallization kinetic equation has been given. There are two solid phases, Macallisterite (MgO . 3B(2)O(3) . 7.5H(2)O) was firstly crystallized out from the solution and then hungchaoite (MgO . 2B(2)O(3) . 9H(2)O). The solid phases were identified by IR-spectra, X-ray powder diffraction and TG-DSC thermal analysis.
KeywordBorate Supersaturated Solution Crystallization Kinetics Macallisterite Hungchaoite
WOS HeadingsScience & Technology ; Physical Sciences
WOS KeywordSALT LAKE BRINE ; CHEMISTRY
Indexed BySCI
Language英语
WOS Research AreaChemistry
WOS SubjectChemistry, Physical
WOS IDWOS:000172252600012
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Document Type期刊论文
Identifierhttp://ir.isl.ac.cn/handle/363002/6042
Collection青海盐湖研究所知识仓储
Affiliation1.Chinese Acad Sci, Inst Salt Lakes, Xian Branch, Xian 710043, Peoples R China
2.Shaanxi Normal Univ, Inst Appl Chem, Xian 710062, Peoples R China
3.Qinghai Univ, Coll Chem Engn, Xining 810016, Peoples R China
Recommended Citation
GB/T 7714
Ma, YT,Xia, SP,Gao, SY. Crystallization kinetics of Mg-borates from MgO center dot 3B(2)O(3)-18%MgSO4-H2O supersaturated solution[J]. ACTA PHYSICO-CHIMICA SINICA,2001,17(11):1021-1026.
APA Ma, YT,Xia, SP,&Gao, SY.(2001).Crystallization kinetics of Mg-borates from MgO center dot 3B(2)O(3)-18%MgSO4-H2O supersaturated solution.ACTA PHYSICO-CHIMICA SINICA,17(11),1021-1026.
MLA Ma, YT,et al."Crystallization kinetics of Mg-borates from MgO center dot 3B(2)O(3)-18%MgSO4-H2O supersaturated solution".ACTA PHYSICO-CHIMICA SINICA 17.11(2001):1021-1026.
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