HgCl₂/I₂复合催化剂协同催化合成异丙醇钇的研究

HgCl 2 /I 2 复合催化剂协同催化合成异丙醇钇的研究 The Catalytic Synthesis of Yttrium Isopropoxide with HgCl 2 /I 2 Composite Catalyst 陈永熙 CHEN Yong-xi1 1 2 3 first-author 孙育斌 ZHOU Li-juan2 1 2 3 雷家珩 SUN Yu-bin1 1 2 3 周立娟 LEI Jia-heng1 1 2 3 武汉理工大学理学院 武汉理工大学理学院 School of Sciences, Wuhan University of Technology School of Sciences, Wuhan University of Technology 山东理工大学材料学院,湖北,武汉,430070 山东理工大学材料学院,湖北,武汉,430070 College of Material, Shandong University of Technology College of Material, Shandong University of Technology ,山东,淄博,255091 ,山东,淄博,255091 以金属钇和异丙醇为原料,以HgCl2/I2为复合催化剂,通过对金属钇的机械加工以增加其比表面,并将异丙醇脱水使其含水量降低至0.05％,体系在82℃回流5h,经过滤、减压蒸馏,得到了白色海绵状异丙醇钇,其产率高达83％,合成时间比文献报道的缩短了19h,产率提高了8％.文章确定了催化剂的最佳用量为20gY加入60mg HgCl2/I2,研究了合成产率与HgCl2/I2催化剂和HgCl2催化剂的依赖关系及异丙醇中含水量对合成产率的影响,并对HgCl2/I2的催化作用机理进行了初步探讨. Yttrium metal shavings reacted with dehydrated isopropanol under reflux using HgCl2/I2 as a composite catalyst for 5 hours to give yttrium isopropoixde in 83 % yield. Compared with the reported methods, the period for synthesis was shortened by 19 h and the yield is increased by 8%. The optimum catalyst /yttrium ratio is 60 mg/20 g. The relationship between yield and catalyst and the effect of water content in isopropanol on the reaction were investigated. The catalysis mechanism of HgCl2/I2 was discussed. 异丙醇钇 合成 HgCl2/I2 催化剂 yttrium isopropoxide synthesis HgCl2/I2 catalyst O627.33 2002-02-01 2021-04-01 2