The reaction of MgCl2 center dot 4H(2)O with CCl2F2

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	The reaction of MgCl2 center dot 4H(2)O with CCl2F2
	Long, GM; Ma, PH
	2003-07-28
发表期刊	THERMOCHIMICA ACTA
卷号	403 期号:2 页码:231-235
关键词	Mgf2 Mgcl2 Center Dot 4h(2)o Ccl2f2 Catalytic Decomposition Thermal Analysis Fluid-bed
摘要	A new reaction Of MgCl2.4H(2)O with CCl2F2 is investigated by DTA and TG from room temperature to 350degreesC. It is observed that MgF2 was obtained between 252 and 350degreesC, Below the temperature, MgCl2.4H(2)O dehydrates and hydrolyzes to MgCl2 and Mg(OH)Cl, which are the real reactants of the reaction with CCl2F2. The formation of MgF2 is ascribed to the reaction of MgCl2 and Mg(OH)Cl with HF, which forms by decomposition Of CCl2F2 with the taking part in of H2O released from dehydration of hydrated magnesium chloride on the surface Of MgCl2 and Mg(OH)Cl, which catalyzes the decomposition Of CCl2F2 in this case. Consequently, the reactions are tested in the fluid-bed condition. It is found that MgF2 formed at temperatures down to 200degreesC in a fluid-bed reactor. This reaction may be used as a method of disposing of the environmentally sensitive CCl2F2 (rather than release into the atmosphere). It is also a method for the preparation of MgF2. (C) 2003 Published by Elsevier Science B.V.
语种	英语
引用统计
文献类型	期刊论文
条目标识符	http://ir.isl.ac.cn/handle/363002/6115
专题	青海盐湖研究所知识仓储
作者单位	Chinese Acad Sci, Inst Salt Lakes, Xining 810008, Qinghai, Peoples R China
推荐引用方式 GB/T 7714	Long, GM,Ma, PH. The reaction of MgCl2 center dot 4H(2)O with CCl2F2[J]. THERMOCHIMICA ACTA,2003,403(2):231-235.
APA	Long, GM,&Ma, PH.(2003).The reaction of MgCl2 center dot 4H(2)O with CCl2F2.THERMOCHIMICA ACTA,403(2),231-235.
MLA	Long, GM,et al."The reaction of MgCl2 center dot 4H(2)O with CCl2F2".THERMOCHIMICA ACTA 403.2(2003):231-235.