摘要
研究了钛硅分子筛作为弱酸催化剂用于催化氧化苯乙烯的重排反应，发现不同合成条件对其合成分子筛的催化重排活性和选择性有较大的影响。由ＸＲＤ和ＦＴ－ＩＲ表征有较高结晶度和骨架钛量的分子筛具有较高的重排活性和生成苯乙醛的选择性；而结晶度和骨架钛量都较低的分子筛其重排选择性明显下降。此外还考察了反应温度、溶剂和催化剂用量对重排反应的影响规律。
S zeolites with weak acidity were used to catalyze the reaction of isomerizing styrene oxide to βphenylaldehydeThe reaction results have shown that TS zeolite with higher crystallinity and framework titanium content characterized by XRD and framework IR has better catalytic activity and selectivityHowever,the catalytic activity, and especially the selectivity of TS zeolite with lower crystallinity and framework Ti content are obviously lowerThe effects of reaction temperature ,time,solvent and the amount of catalyst on the rearrangement reaction of styrene oxide have also been studied
出处
《石油化工》
CAS
CSCD
北大核心
1998年第7期486-489,共4页
Petrochemical Technology
基金
湖南省自然科学基金
关键词
钛硅分子筛
苯乙烯
重排反应
催化氧化
TS2 zeolites,styrene oxide,phenylaldehyde,catalytic rearrangement
