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公开(公告)号:US06936744B1
公开(公告)日:2005-08-30
申请号:US09619560
申请日:2000-07-19
申请人: Jane Chi Ya Cheng , Michael Alan Steckel , Charles Morris Smith , William Alois Weber , Stephen Harold Brown , Ajit Bhaskar Dandekar , Michael Alan Better
发明人: Jane Chi Ya Cheng , Michael Alan Steckel , Charles Morris Smith , William Alois Weber , Stephen Harold Brown , Ajit Bhaskar Dandekar , Michael Alan Better
CPC分类号: C07C15/085 , C07C6/126 , C07C2529/08 , C07C2529/18 , C07C2529/70 , C07C2529/80 , Y02P20/52
摘要: The present invention provides a process for producing a monoalkylated aromatic compound, particularly cumene, comprising the step of contacting a polyalkylated aromatic compound with an alkylatable aromatic compound under at least partial liquid phase conditions and in the presence of a transalkylation catalyst to produce the monoalkylated aromatic compound, wherein the transalkylation catalyst comprises a mixture of at least two different crystalline molecular sieves, wherein each of said molecular sieves is selected from zeolite beta, zeolite Y, mordenite and a material having an X-ray diffraction pattern including d-spacing maxima at 12.4±0.25, 6.9±0.15, 3.57±0.07 and 3.42±0.07 Angstrom.
摘要翻译: 本发明提供了制备单烷基化芳族化合物,特别是异丙基苯的方法,包括在至少部分液相条件下和在烷基转移催化剂存在下使多烷基化芳族化合物与可烷基化芳族化合物接触的步骤,以产生单烷基化芳族化合物 化合物,其中所述烷基转移催化剂包含至少两种不同结晶分子筛的混合物,其中所述分子筛中的每一种选自沸石β,沸石Y,丝光沸石和具有包括d-间距最大值的X射线衍射图案的材料 12.4±0.25,6.9±0.15,3.57±0.07和3.42±0.07埃。