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公开(公告)号：US06753453B2
公开(公告)日：2004-06-22
申请号：US10299558
申请日：2002-11-19
IPC分类号： C07C412
摘要： A process for the selective production of meta-diisopropylbenzene is disclosed, wherein the process comprises the steps of contacting cumene under disproportionation conditions and in the absence of added benzene with a catalyst comprising a porous crystalline inorganic oxide 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 to produce a disproportionation effluent containing benzene and mixture of diisopropylbenzene isomers, and then recovering from said disproportion effluent a meta-diisopropylbenzene boiling range fraction in which the ratio of meta-diisopropylbenzene to ortho-diisopropylbenzene is in excess of 50 and the total amount of meta-diisopropylbenzene co-boilers excluding ortho-diisopropylbenzene is less than 1 wt % of said fraction.
摘要翻译： 公开了选择性制备间二异丙基苯的方法，其中所述方法包括以下步骤：在歧化条件下和不加入苯的情况下将异丙基苯与包含具有X射线衍射图案的多孔结晶无机氧化物材料的催化剂接触，所述多孔结晶无机氧化物材料包括 在12.4±0.25,6.9±0.15,3.57±0.07和3.42±0.07埃处的d间距最大值，以产生含有苯和二异丙基苯异构体的混合物的歧化流出物，然后从所述不成比例流出物中回收间二异丙基苯沸程馏分，其中 间二异丙基苯与邻二异丙基苯的比例超过50，除邻二异丙基苯以外的间二异丙基苯共沸锅的总量小于所述馏分的1重量％。
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2.发明授权Production of diisopropylbenzene by disproportion of cumene in the presence of a TEA-mordenite catalyst 有权在TEA丝光沸石催化剂存在下，通过异丙苯的不成比例生产二异丙基苯公开(公告)号：US07432405B2
公开(公告)日：2008-10-07
申请号：US11179320
申请日：2005-07-12
IPC分类号： C07C12/15
CPC分类号： C07C6/123 , C07C2529/08 , C07C2529/18 , C07C2529/70 , C07C15/02
摘要： A process for the disproportionation of cumene is disclosed which comprises the step of contacting a feed containing cumene, under disproportionation conditions, with a catalyst comprising a molecular sieve, preferably TEA-mordenite. The contacting step disproportionates at least part of the cumene in the feed to provide a disproportionation effluent containing benzene and a mixture of diisopropylbenzene isomers. The effluent is then recovered and contains, prior to any separation step, less 1% of ortho-diisopropylbenzene by weight of the total diisopropylbenzene content of said effluent, less than 1 wt % of n-propylbenzene, less than 5 wt % of triisopropylbenzenes and less than 5 wt % of disproportionation products other than benzene and diisopropylbenzenes.
摘要翻译： 公开了异丙苯歧化的方法，其包括在歧化条件下使含有枯烯的进料与包含分子筛，优选TEA丝光沸石的催化剂接触的步骤。 接触步骤歧化进料中的异丙基苯的至少一部分，以提供含有苯和二异丙基苯异构体的混合物的歧化流出物。 然后回收流出物，并且在任何分离步骤之前，包含按所述流出物的总二异丙苯含量的重量计小于1重量％的邻二异丙基苯，小于1重量％的正丙基苯，小于5重量％的三异丙基苯和 除苯和二异丙基苯以外的歧化产物少于5重量％。
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公开(公告)号：US06933419B2
公开(公告)日：2005-08-23
申请号：US09844051
申请日：2001-04-27
CPC分类号： C07C6/123 , C07C2529/08 , C07C2529/18 , C07C2529/70 , C07C15/02
摘要： A process for the disproportionation of cumene is disclosed which comprises the step of contacting a feed containing cumene, under disproportionation conditions, with a catalyst comprising a molecular sieve, preferably TEA-mordenite. The contacting step disproportionates at least part of the cumene in the feed to provide a disproportionation effluent containing benzene and a mixture of diisopropylbenzene isomers. The effluent is then recovered and contains, prior to any separation step, less 1% of ortho-diisopropylbenzene by weight of the total diisopropylbenzene content of said effluent, less than 1 wt % of n-propylbenzene, less than 5 wt % of triisopropylbenzenes and less than 5 wt % of disproportionation products other than benzene and diisopropylbenzenes.
摘要翻译： 公开了异丙苯歧化的方法，其包括在歧化条件下使含有枯烯的进料与包含分子筛，优选TEA丝光沸石的催化剂接触的步骤。 接触步骤歧化进料中的异丙基苯的至少一部分，以提供含有苯和二异丙基苯异构体的混合物的歧化流出物。 然后回收流出物，并且在任何分离步骤之前，包含按所述流出物的总二异丙苯含量的重量计小于1重量％的邻二异丙基苯，小于1重量％的正丙基苯，小于5重量％的三异丙基苯和 除苯和二异丙基苯以外的歧化产物少于5重量％。
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公开(公告)号：US06765120B2
公开(公告)日：2004-07-20
申请号：US10318690
申请日：2002-12-13
IPC分类号： C07C522
CPC分类号： C07C15/02 , C07C2/66 , C07C6/126 , C07C2529/70
摘要： In a process for the selective production of meta-diisopropylbenzene, a C9+ aromatic hydrocarbon feedstock containing meta- and ortho-diisopropylbenzene is contacted with benzene under conversion conditions with a catalyst comprising a molecular sieve selected from the group consisting of zeolite beta, mordenite and a porous crystalline inorganic oxide material having an X-ray diffraction pattern including the d-spacing maxima at 12.4±0.25, 6.9±0.15, 3.57±0.07 and 3.42±0.07 Angstrom. The contacting step selectively converts ortho-diisopropylbenzene in the feedstock to produce an effluent in which the ratio of meta-diispropylbenzene to ortho-diispropylbenzene is greater than that of the feedstock. The effluent is the fed to a separation zone for recovery of a product rich in meta-diisopropylbenzene.
摘要翻译： 在选择性制备间二异丙基苯的方法中，将含有间 - 和邻 - 二异丙基苯的C 9+芳烃原料在转化条件下与苯接触，所述催化剂包含选自沸石β，丝光沸石和 具有12.4±0.25,6.9±0.15,3.57±0.07和3.42±0.07埃的d间距最大值的X射线衍射图的多孔结晶无机氧化物材料。 接触步骤选择性地转化原料中的邻二异丙基苯以产生其中间二异丙基苯与邻二丙基苯的比例大于原料的流出物。 将流出物进料至分离区，以回收富含间二异丙基苯的产物。
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公开(公告)号：US06518471B1
公开(公告)日：2003-02-11
申请号：US09891323
申请日：2001-06-25
IPC分类号： C07C522
CPC分类号： C07C15/02 , C07C2/66 , C07C6/126 , C07C2529/70
摘要： In a process for the selective production of meta-diisopropylbenzene, a C9+aromatic hydrocarbon feedstock containing meta- and ortho-diisopropylbenzene is contacted with benzene under conversion conditions with a catalyst comprising a molecular sieve selected from the group consisting of zeolite beta, mordenite and a porous crystalline inorganic oxide material having an X-ray diffraction pattern including the d-spacing maxima at 12.4±0.25, 6.90±15, 3.57±0.07 and 3.42±0.07 Angstrom. The contacting step selectively converts ortho-diisopropylbenzene in the feedstock to produce an effluent in which the ratio of meta-diispropylbenzene to ortho-diispropylbenzene is greater than that of the feedstock. The effluent is the fed to a separation zone for recovery of a product rich in meta-diisopropylbenzene.
摘要翻译： 在选择性制备间二异丙基苯的方法中，含有间 - 和邻 - 二异丙基苯的C 9+芳烃原料在转化条件下与苯接触，催化剂包含选自沸石β，丝光沸石和 具有包括在12.4±0.25,6.90±15,3.57±0.07和3.42±0.07埃处的d间距最大值的X射线衍射图的多孔结晶无机氧化物材料。 接触步骤选择性地转化原料中的邻二异丙基苯以产生其中间二异丙基苯与邻二丙基苯的比例大于原料的流出物。 将流出物进料至分离区，以回收富含间二异丙基苯的产物。
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