异丁烷-丁烯烷基化杂多酸醋酸催化机理  

Active Components and Mechanism of Isobutane Alkylation with Butenes in the Catalytic System of HPAs +AcOH

作　　者：赵振波[1] 孙闻东[1] 杨向光[1] 叶兴凯[1] 吴越[1] 

机构地区：[1]中国科学院长春应用化学研究所,长春130022

出　　处：《物理化学学报》2000年第7期613-620,共8页Acta Physico-Chimica Sinica

基　　金：国家自然科学基金!九五重大项目(29792076)

摘　　要：对由杂多酸 醋酸组成的新型液体催化剂异丁烷/丁烯烷基化的活性相进行了研究.确定了催化活性相的组成,对活性相进行分离并采用FTIR、UV和NMR等方法对活性相进行表征.在此基础上提出了形成质子化杂多酸为起始步骤的烷基化反应机理,得到了实验结果的证明.The catalytic active phase (CAP) of a novel liquid catalyst for isobutane alkylation with butenes was investigated,the composition of the CAP was analysized.The components of the catalytic active phase were separated and examined by the methods of FTIR,UV and NMR etc..On the basis of these results,a reaction mechanism based on the formation of protonated heteropolyacid as an intial stage in the isobutane alkylation with butenes was postulated,which is in agreement with the experimental results.ActiveCompon

关 键 词：杂多酸-醋酸 异丁烷 丁烯 烷基化 催化机理 

分 类 号：O643[理学—物理化学]