微波辐射下SO_4^(2-)/ZrO_2-TiO_2催化合成诺卜醇  

Syntheses of Nopol Catalyst by SO_4^(2-)/ZrO_2-TiO_2 in Microwave Irradiation

作　　者：刘传涛[1] 罗金岳[1] 

机构地区：[1]南京林业大学化学工程学院,江苏南京210037

出　　处：《南京林业大学学报（自然科学版）》2007年第3期91-94,共4页Journal of Nanjing Forestry University：Natural Sciences Edition

基　　金：江苏省高校自然科学研究计划项目(05KJD220097)

摘　　要：以β-蒎烯和多聚甲醛为原料,固体超强酸SO42-/ZrO2-TiO2为催化剂,在微波辐射条件下合成诺卜醇,考察了微波辐射温度、辐射时间、SO42-/ZrO2-TiO2的制备条件(Ti与Zr的元素配比、催化剂焙烧温度)、催化剂用量等对诺卜醇得率的影响。结果表明,微波辐射温度、时间及催化剂的制备条件和用量对诺卜醇得率有较大影响。优化的工艺条件为:微波辐射温度110℃,辐射时间2.5 h,微波功率600 W,催化剂的元素摩尔比MTi∶MZr=6∶1,焙烧温度450℃,催化剂的质量分数为4%。该条件下诺卜醇得率60.4%。此外,还研究了催化剂放置时间对产物得率的影响及催化剂再生使用情况。Nopol is synthesized by β pinene and paraformaldehyde under microwave irradiation.The catalyst is solid superacid SO4^-/ZrO2 - TiO2. The influence of various reaction parameters, such as reaction temperature, time, the conditions for preparation of catalyst and catalyst content has been investigated. The results show that the proper technologic conditions are as follows： irradiation temperature is 110℃ irradiation time is 2.5 h, microwave power is 600 W, the catalyst type is MTi ：Mzr=6： 1, the calcinations temperature is 450℃and solid superacid content is 4 %. In this condition the yield rate of nopol is 60.4%. Further more, the effects of storage time of the catalysts on the reaction and the regeneration experiments of catalysts are carried out.

关 键 词：SO4^2-/ZRO2-TIO2 诺卜醇 微波辐射 固体超强酸 催化合成 Β-蒎烯 

分 类 号：TQ322[化学工程—合成树脂塑料工业]