摘要
本文首次发现在碱性沸石上乙醇能够发生以正丁醇为主产物的双分子缩合反应。在所研究的催化剂中,含铷的Lix沸石表现出最高的反应选择性。研究表明,这一碱催化反应的活性与催化剂的酸碱性质密切相关。催化剂的碱性对反应起决定性作用,但催化剂的碱性太强则不利于反应。
It was found for the first time that ethanol mainly converted into 1-butanol by a bimolecular condensation over alkali cation zeolites. The selectivity of the condensation was higher on Rb-LiX zeolite than on all other used zeolites. The experiment results showed that the activities of condensation were related to the acid-base properties of the catalysts. The basicity of the catalyst was essential to the reaction, but on the catalyst showing higher basic strength, the activity of the reaction was not higher.
出处
《化学学报》
SCIE
CAS
CSCD
北大核心
1993年第1期79-84,共6页
Acta Chimica Sinica
