金属醇盐水解法制备超细粉末过程中醇与苯的回收

The Recovery of Alcohol and Benzene during Peparation of Ultrafine Powder by the Metal Alcoxidos Hydrolysis

对醇盐水解法制备超细粉末过程中有机试剂的回收进行了研究 ,绘制了异丙醇 苯的二元相图和异丙醇 苯 水的三元相图 ,在此基础上采用蒸馏 精馏的方法对制备体系中的异丙醇和苯进行回收 ,将有机试剂循环使用 ,使醇和苯的回收利用率达 75%以上 ,因而减少了环境污染 ,并降低了粉末成本。

Study is made of recovery of organic reagents during the preparation of ultrafine powder by metal alcoxides hydrolysis.The Phase diagrams of isopropanol benzene system and isopropanol benzene water system have been plotted,based on which,isopropanol and benzene can be recovered and recirculated by distillation rectification process.The recovery and reused rate of alcohol and benzene are above 75%.So both the environmental pollution and cost of ultrfine powder are reduced.