Gas chromatographic thermodynamics on hydration processes of magnesiumchloride with low water

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	Gas chromatographic thermodynamics on hydration processes of magnesiumchloride with low water
	Chen, JJ; Chen, GC; Ma, PH; Bao, JQ; Ma, YT; Chen, FQ
	2003
发表期刊	TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA
ISSN	1003-6326
卷号	13 期号:2 页码:467-472
摘要	The dehydration and hydration processes of magnesium chloride hydrates were studied by means of frontal chromatography analysis, calorimetry, thermogravimetry and chemical analysis. The mathematical imitation for the adsorption isotherms of MgCl2 . 4H(2)O and MgCl2 . 2H(2)O at different temperatures indicates that Boltzmann Function is the ideal equation to describe those adsorption isotherms. Its adsorption heat is -13.06 kJ/mol and -16.11 kJ/mol, respectively. The adsorption equilibrium constants are also given. From the data obtained, there is a thermodynamical possibility to use partial dehydrated magnesium chloride hydrates as an absorbance to clean water vapor contained in bischophite dehydration equipment and let the protection gas HCl recycle in the fluid bed reaction system. The dehydration and hydration processes of magnesium chloride hydrates were studied by means of frontal chromatography analysis, calorimetry, thermogravimetry and chemical analysis. The mathematical imitation for the adsorption isotherms of MgCl2 . 4H(2)O and MgCl2 . 2H(2)O at different temperatures indicates that Boltzmann Function is the ideal equation to describe those adsorption isotherms. Its adsorption heat is -13.06 kJ/mol and -16.11 kJ/mol, respectively. The adsorption equilibrium constants are also given. From the data obtained, there is a thermodynamical possibility to use partial dehydrated magnesium chloride hydrates as an absorbance to clean water vapor contained in bischophite dehydration equipment and let the protection gas HCl recycle in the fluid bed reaction system.
文献类型	期刊论文
条目标识符	http://ir.isl.ac.cn/handle/363002/2353
专题	青海盐湖研究所知识仓储中国科学院青海盐湖研究所
推荐引用方式 GB/T 7714	Chen, JJ,Chen, GC,Ma, PH,et al. Gas chromatographic thermodynamics on hydration processes of magnesiumchloride with low water[J]. TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA,2003,13(2):467-472.
APA	Chen, JJ,Chen, GC,Ma, PH,Bao, JQ,Ma, YT,&Chen, FQ.(2003).Gas chromatographic thermodynamics on hydration processes of magnesiumchloride with low water.TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA,13(2),467-472.
MLA	Chen, JJ,et al."Gas chromatographic thermodynamics on hydration processes of magnesiumchloride with low water".TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA 13.2(2003):467-472.