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公开(公告)号:US4962259A
公开(公告)日:1990-10-09
申请号:US447274
申请日:1989-12-07
IPC分类号: C07C5/27
CPC分类号: C07C5/2724
摘要: This invention presents a novel catalyst formulation for the isomerization of alkylaromatic hydrocarbons. The catalyst is comprised of at least one Group VIII metal, and a pentasil zeolite having an x-ray diffraction characteristic of ZSM-12 wherein a portion of the aluminum atoms have been replaced with gallium atoms. When utilized in a process for isomerizing a non-equilibrium mixture of xylenes containing ethylbenzene, a greater yield of paraxylene is obtained compared to prior-art processes.
摘要翻译: 本发明提出了用于烷基芳族烃异构化的新型催化剂配方。 催化剂由至少一种VIII族金属和具有ZSM-12的X射线衍射特性的pentasil沸石组成,其中一部分铝原子被镓原子代替。 当用于异构化含有乙苯的二甲苯的非平衡混合物的方法中时,与现有技术方法相比,获得更高的对二甲苯收率。
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公开(公告)号:US4957891A
公开(公告)日:1990-09-18
申请号:US448445
申请日:1989-12-11
IPC分类号: C07C5/27
CPC分类号: C07C5/2724
摘要: This invention presents a novel catalyst formulation for the isomerization of alkylaromatic hydrocarbons. The catalyst comprises at least one Group VIII metal, a pentasil zeolite wherein a portion of the aluminum atom has been replaced with gallium atoms and a matrix material of zirconia-alumina. When utilized in a process for isomerizing a non-equilibrium mixture of xylenes containing ethylbenzene, a greater yield of para-xylene is obtained compared to prior art processes.
摘要翻译: 本发明提出了用于烷基芳族烃异构化的新型催化剂配方。 该催化剂包含至少一种Ⅷ族金属,其中一部分铝原子被镓原子取代的五硅烷沸石和氧化锆 - 氧化铝的基质材料。 当用于异构化含有乙苯的二甲苯的非平衡混合物的方法中时,与现有技术方法相比,获得了更高的对二甲苯的产率。
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公开(公告)号:US5081084A
公开(公告)日:1992-01-14
申请号:US542611
申请日:1990-06-25
IPC分类号: C07C5/27
CPC分类号: C07C5/2724
摘要: This invention presents a novel catalyst formulation for the isomerization of alkylaromatic hydrocarbons. The catalyst is comprised of at least one Group VII metal, and a pentasil zeolite having an x-ray diffraction characteristic of ZSM-12 wherein a portion of the aluminum atoms have been replaced with gallium atoms. When utilized in a process for isomerizing a non-equilibrium mixture of xylenes containing ethylbenzene, a greater yield of para-xylene is obtained compared to prior-art processes.
摘要翻译: 本发明提出了用于烷基芳族烃异构化的新型催化剂配方。 该催化剂由至少一种第Ⅶ族金属和具有ZSM-12的X射线衍射特性的pentasil沸石组成,其中一部分铝原子被镓原子代替。 当用于异构化含有乙苯的二甲苯的非平衡混合物的方法中时,与现有技术方法相比,获得更高的对二甲苯产率。
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