Position: Home > Articles > Syntheses of Nopol Catalyst by SO_4~(2-)/ZrO_2-TiO_2 in Microwave Irradiation
Journal of Nanjing Forestry University(Natural Sciences Edition)
2007,31
(3)
95-98
微波辐射下SO_4~(2-)/ZrO_2-TiO_2催化合成诺卜醇
作 者：
刘传涛;罗金岳
单 位：
南京林业大学化学工程学院
关键词：
SO42-/ZrO2-TiO2;诺卜醇;微波辐射;固体超强酸;催化合成;β-蒎烯
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。
译 名：
Syntheses of Nopol Catalyst by SO_4~(2-)/ZrO_2-TiO_2 in Microwave Irradiation
作 者：
LIU Chuan-tao,LUO Jin-yue(College of Chemical Engineering Nanjing Forestry University,Nanjing 210037,China)
关键词：
SO42-/ZrO2-TiO2;Nopol;Microwave irradiation;Solid superacid;Catalytic synthesis;β-pinene
摘 要：
Nopol is synthesized by β-pinene and paraformaldehyde under microwave irradiation.The catalyst is solid superacid SO42-/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.
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