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Determination and Modeling of MgCl2 Solubility in Methanol, Ethanol, 2-Propanol, and Their Mixtures from 283 to 343 K
Zeng, Lanmu1,2; Li, Zhibao1; Wang, Xiaolin2
2016-02-01
Source PublicationJOURNAL OF CHEMICAL AND ENGINEERING DATA
ISSN0021-9568
Volume61Issue:2Pages:797-805
Abstract

MgCl2-supported Ziegler Natta catalyst plays an important role in polyolefin industry. The solubility of MgCl2 in various alcohols has been studied to understand the mechanisms involved in the preparation of the catalyst. The solubility of anhydrous MgCl2 in methanol, ethanol, and 2-propanol and their mixtures was measured by a dynamic method at temperatures from 283.2 to 343.2 K. The solubility was found to increase with increasing temperature, but the increasing rate was dependent on the composition of solvent. In the single alcohol, the solubility value of MgCl2 is under the order of methanol > ethanol > 2-propanol at room temperature. Solubilities of MgCl2 in the mixtures of methanol + ethanol, methanol + 2-propanol, and ethanol + 2-propanol are all larger than that in the single alcohol. Three solid phases, including MgCl2 center dot 6CH(3)OH, MgCl2 center dot 6C(2)H(5)OH, and MgCl2 center dot 4(CH3)(2)CHOH, were found in the equilibrated solids by XRD characterization. The mixed -solvent model (MSE) embedded in the OLI software was applied to model the experimental solubility data. The log K-SP for the dissolution reaction of MgCl2 center dot 6CH(3)OH, MgCl2 center dot 6C(2)H(5)OH, and MgCl2 center dot 4(CH3)(2)CH OH at 298.2 K were determined to be -11.5078, -13.0943, and -10.6139, respectively.

KeywordSolvent Electrolyte Systems Vapor-liquid-equilibria Magnesium-chloride Olefin Polymerization Molecular Adduct Recrystallization Method Hydrochloric-acid Crystal-structure Catalysts Support
SubtypeArticle
WOS HeadingsScience & Technology ; Physical Sciences ; Technology
DOI10.1021/acs.jced.5b00624
URL查看原文
Indexed BySCI
Language英语
WOS KeywordSolvent Electrolyte Systems ; Vapor-liquid-equilibria ; Magnesium-chloride ; Olefin Polymerization ; Molecular Adduct ; Recrystallization Method ; Hydrochloric-acid ; Crystal-structure ; Catalysts ; Support
WOS Research AreaThermodynamics ; Chemistry ; Engineering
WOS SubjectThermodynamics ; Chemistry, Multidisciplinary ; Engineering, Chemical
Funding OrganizationNational Natural Science Foundation of China(U1407112 ; National Basic Research Program of China (973 Program)(2013CB632605) ; Science and Technology Planning Project of Qinghai Province(2012-G-213A) ; 21476235)
WOS IDWOS:000370212300012
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/20644
Collection研究所(批量导入)
Corresponding AuthorLi, Zhibao
Affiliation1.Chinese Acad Sci, Inst Proc Engn, Key Lab Green Proc & Engn, Beijing 100190, Peoples R China
2.Tsinghua Univ, Dept Chem Engn, Beijing Key Lab Membrane Mat & Engn, Beijing 100084, Peoples R China
Recommended Citation
GB/T 7714
Zeng, Lanmu,Li, Zhibao,Wang, Xiaolin. Determination and Modeling of MgCl2 Solubility in Methanol, Ethanol, 2-Propanol, and Their Mixtures from 283 to 343 K[J]. JOURNAL OF CHEMICAL AND ENGINEERING DATA,2016,61(2):797-805.
APA Zeng, Lanmu,Li, Zhibao,&Wang, Xiaolin.(2016).Determination and Modeling of MgCl2 Solubility in Methanol, Ethanol, 2-Propanol, and Their Mixtures from 283 to 343 K.JOURNAL OF CHEMICAL AND ENGINEERING DATA,61(2),797-805.
MLA Zeng, Lanmu,et al."Determination and Modeling of MgCl2 Solubility in Methanol, Ethanol, 2-Propanol, and Their Mixtures from 283 to 343 K".JOURNAL OF CHEMICAL AND ENGINEERING DATA 61.2(2016):797-805.
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