XRD表征氯化镁乙醇醇合物的结构

石油化工1128PETROCHEMICAL TECHNOLOGY2014年第43卷第10期ⅩRD表征氯化镁乙醇醇合物的结构岑为,夏先知,刘月祥,毛炳权(中国石化北京化工研究院,北京100013)[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MgCl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MgCl26EOH,MgCl23.33EtOH,MgCl22.8EOH,MgC21.5EOH。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。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[文章编号]1000-8144(2014)10-128-05[中图分类号]TQ42665文献标志码]ACharacterization of Magnesium Chloride-Ethanol Adduct byX-Ray Powder DiffractionCen Wei, Xia Xianzhi, Liu Yuexiang, Mao bingquan(SINOPEC Beijing Research Institute of Chemical Industry, Beijing 100013, China)Abstract] Magnesium chloride-ethanol adducts, which were used as catalyst supports forpropylene polymerization, with different molar ratio of EtoH to MgCI,(n)were prepared andcharacterized by means of X-ray powder diffraction. The components of the adducts were investigatedthrough the calculation of the unit cell parameters of their crystal structures. It was showed that therewere four stable crystal structures in the Mg Cl, nEtoH adducts with 1.5