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| The dehydration of MgCl2 center dot 6H(2)O in MgCl2 center dot 6H(2)O-KCl-NH4Cl system | |
| Alternative Title | J. Anal. Appl. Pyrolysis |
| Zhang, Zhimin1; Lu, Xuchen1,3; Wang, Tizhuang1; Yan, Yan1; Pan, Feng1,2 | |
| 2014-11-01 | |
| Source Publication | JOURNAL OF ANALYTICAL AND APPLIED PYROLYSIS
 |
| ISSN | 0165-2370 |
| Volume | 110Issue:NOV.Pages:248-253 |
| Abstract | 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.; 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. |
| Keyword | Dehydration Magnesium Chloride Hexahydrate Hydrolysis Anhydrous Magnesium Chloride |
| Subtype | Article |
| WOS Headings | Science & Technology ; Physical Sciences ; Technology |
| DOI | 10.1016/j.jaap.2014.09.009 |
| URL | 查看原文 |
| Indexed By | SCI |
| Language | 英语 |
| WOS Keyword | ANHYDROUS MAGNESIUM-CHLORIDE ; THERMAL-DECOMPOSITION ; HEXAHYDRATE ; KINETICS |
| WOS Research Area | Chemistry ; Spectroscopy |
| WOS Subject | Chemistry, Analytical ; Spectroscopy |
| WOS ID | WOS:000347496800029 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.ipe.ac.cn/handle/122111/11897 |
| Collection | 研究所（批量导入） |
| Affiliation | 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 |
| Recommended Citation 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. |
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| The dehydration of M（1062KB） | 期刊论文 | 出版稿 | 限制开放 | CC BY-NC-ND | Application Full Text | |
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