XRD表征氯化镁乙醇醇合物的结构  

Characterization of Magnesium Chloride-Ethanol Adduct by X-Ray Powder Diffraction

作　　者：岑为[1] 夏先知[1] 刘月祥[1] 毛炳权[1] 

机构地区：[1]中国石化北京化工研究院,北京100013

出　　处：《石油化工》2014年第10期1128-1132,共5页Petrochemical Technology

基　　金：中国石油化工股份有限公司资助项目(44BS1302)

摘　　要：制备了一系列乙醇与MgCl2摩尔比（简称醇镁比）不同的MgCl2醇合物,采用XRD方法研究了MgCl2醇合物的晶体结构,并通过对晶胞参数的计算分析了MgCl2醇合物中结构稳定的组分.表征结果显示,醇镁比在1.5～6之间的MgCl2醇合物有4种结构稳定的组分,分别为MgCl2·6EtOH,MgCl2·3.33EtOH,MgCl2·2.8EtOH,MgCl2·1.5EtOH.不同醇镁比的MgCl2醇合物是由这4种结构稳定的组分中的一种或几种组成的.Magnesium chloride-ethanol adducts,which were used as catalyst supports for propylene polymerization,with different molar ratio of EtOH to MgCl2 （n） were prepared and characterized by means of X-ray powder diffraction.The components of the adducts were investigated through the calculation of the unit cell parameters of their crystal structures.It was showed that there were four stable crystal structures in the MgCl2·nEtOH adducts with 1.5 ≤n ≤ 6,which were MgCl2·6EtOH,MgCl2· 3.33EtOH,MgCl2· 2.8EtOH and MgCl2· 1.5EtOH.In addition,the MgCl2·nEtOH adducts with 1.5 ≤ n ≤ 6 consisted of one or several of the four adducts.

关 键 词：氯化镁醇合物 丙烯聚合催化剂载体 X射线粉末衍射 脱醇 

分 类 号：TQ426.65[化学工程]