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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.
The metal yttrium and isopropanol as raw materials, HgCl2 / I2 as a composite catalyst, through the mechanical processing of metal yttrium to increase its specific surface, and isopropanol dehydration to reduce the water content to 0.05%, the system at 82 ℃ After refluxing for 5h, the white sponge yttrium isopropoxide was obtained by filtration and vacuum distillation, the yield was as high as 83% and the synthesis time was shortened by 19h compared with that reported in the literature, the yield increased by 8% The best dosage was 20gY with 60mg HgCl2 / I2. The dependence of synthesis yield on HgCl2 / I2 catalyst and HgCl2 catalyst and the effect of water content in isopropanol on the yield were studied. The catalytic mechanism of HgCl2 / I2 A preliminary discussion.