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The dehydration of MgCl2 center dot 6H(2)O in MgCl2 center dot 6H(2)O-KCl-NH4Cl system

文献类型：期刊论文

作者Zhang, Zhimin1; Lu, Xuchen1,3; Wang, Tizhuang1; Yan, Yan1; Pan, Feng1,2
刊名JOURNAL OF ANALYTICAL AND APPLIED PYROLYSIS
出版日期2014-11-01
卷号110期号:NOV.页码:248-253
关键词Dehydration Magnesium chloride hexahydrate Hydrolysis Anhydrous magnesium chloride
ISSN号0165-2370
其他题名J. Anal. Appl. Pyrolysis
中文摘要The dehydration of MgCl2 center dot 6H(2)O in MgCl2 center dot 6H(2)O-NH4Cl-KCl system was investigated. The dehydration process was characterized by X-ray diffraction and chemical analysis. The dehydration effects of MgCl2 center dot 6H(2)O in different systems were compared. The dehydration mechanism of MgCl2 center dot 6H(2)O in MgCl2 center dot 6H(2)O-NH4Cl-KCl system was proposed and discussed. The formation of NH4Cl center dot MgCl2 center dot nH(2)O (6 > n >= 0) below 300 degrees C can effectively suppress hydrolysis. The anhydrous KMgCl3 formed above 400 degrees C is more stable than anhydrous MgCl2 at elevated temperature, which can effectively protect the dehydration product from hydrolyzing at high temperature. The content of MgO in anhydrous MgCl2 was 0.02 wt.% when dehydrating MgCl2 center dot 6H(2)O in MgCl2 center dot 6H(2)O-KCl-NH4Cl system with the molar ratio of MgCl2 center dot 6H(2)O:KCl:NH4Cl was 1:2.87:1. (C) 2014 Elsevier B.V. All rights reserved.
英文摘要The dehydration of MgCl2 center dot 6H(2)O in MgCl2 center dot 6H(2)O-NH4Cl-KCl system was investigated. The dehydration process was characterized by X-ray diffraction and chemical analysis. The dehydration effects of MgCl2 center dot 6H(2)O in different systems were compared. The dehydration mechanism of MgCl2 center dot 6H(2)O in MgCl2 center dot 6H(2)O-NH4Cl-KCl system was proposed and discussed. The formation of NH4Cl center dot MgCl2 center dot nH(2)O (6 > n >= 0) below 300 degrees C can effectively suppress hydrolysis. The anhydrous KMgCl3 formed above 400 degrees C is more stable than anhydrous MgCl2 at elevated temperature, which can effectively protect the dehydration product from hydrolyzing at high temperature. The content of MgO in anhydrous MgCl2 was 0.02 wt.% when dehydrating MgCl2 center dot 6H(2)O in MgCl2 center dot 6H(2)O-KCl-NH4Cl system with the molar ratio of MgCl2 center dot 6H(2)O:KCl:NH4Cl was 1:2.87:1. (C) 2014 Elsevier B.V. All rights reserved.
WOS标题词Science & Technology ; Physical Sciences ; Technology
类目[WOS]Chemistry, Analytical ; Spectroscopy
研究领域[WOS]Chemistry ; Spectroscopy
关键词[WOS]ANHYDROUS MAGNESIUM-CHLORIDE ; THERMAL-DECOMPOSITION ; HEXAHYDRATE ; KINETICS
收录类别SCI
原文出处://WOS:000347496800029
语种英语
WOS记录号WOS:000347496800029
公开日期2015-04-01
源URL[http://ir.ipe.ac.cn/handle/122111/11897]  
专题过程工程研究所_研究所（批量导入）
作者单位1.Chinese Acad Sci, Inst Proc Engn, State Key Lab Multiphase Complex Syst, Beijing 100190, Peoples R China
2.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China
3.United Res Ctr Resource & Mat, Wuhai 016000, Peoples R China
推荐引用方式
GB/T 7714		 Zhang, Zhimin,Lu, Xuchen,Wang, Tizhuang,et al. The dehydration of MgCl2 center dot 6H(2)O in MgCl2 center dot 6H(2)O-KCl-NH4Cl system[J]. JOURNAL OF ANALYTICAL AND APPLIED PYROLYSIS,2014,110(NOV.):248-253.
APA Zhang, Zhimin,Lu, Xuchen,Wang, Tizhuang,Yan, Yan,&Pan, Feng.(2014).The dehydration of MgCl2 center dot 6H(2)O in MgCl2 center dot 6H(2)O-KCl-NH4Cl system.JOURNAL OF ANALYTICAL AND APPLIED PYROLYSIS,110(NOV.),248-253.
MLA Zhang, Zhimin,et al."The dehydration of MgCl2 center dot 6H(2)O in MgCl2 center dot 6H(2)O-KCl-NH4Cl system".JOURNAL OF ANALYTICAL AND APPLIED PYROLYSIS 110.NOV.(2014):248-253.

入库方式： OAI收割

来源：过程工程研究所

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