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88 条记录 (耗时 0.042 秒)

    Process for producing sec-butylbenzene
    86.
    发明授权
    Process for producing sec-butylbenzene 失效
    仲丁基苯的制备方法

    公开(公告)号：US07939693B2

    公开(公告)日：2011-05-10

    申请号：US12666333

    申请日：2008-07-11

    申请人： Jane C. Cheng ,  Jihad M. Dakka ,  Travis A. Reine ,  Jon E. Stanat

    发明人： Jane C. Cheng ,  Jihad M. Dakka ,  Travis A. Reine ,  Jon E. Stanat

    IPC分类号： C07C45/00 ,  C07C37/08 ,  C07C15/067

    CPC分类号： C07C409/08 ,  C07C2/66 ,  C07C37/08 ,  C07C45/53 ,  C07C407/00 ,  Y02P20/127 ,  C07C15/02 ,  C07C49/10 ,  C07C39/04

    摘要： A process for producing sec-butylbenzene comprises feeding reactants comprising benzene and a C4 olefin to a distillation column reactor having a first reaction zone containing an alkylation catalyst and a second distillation zone, which is located below said first reaction zone and which is substantially free of alkylation catalyst, wherein the ratio of the number of distillation stages in said first reaction zone to the number of distillation stages in said second distillation zone is less than 1:1. Concurrently in the distillation reactor, the reactants are contacted with the alkylation catalyst in the first reaction zone under conditions such that the C4 olefin reacts with the benzene to produce sec-butylbenzene and the sec-butylbenzene is fractioned from the unreacted C4 olefin. The sec-butylbenzene thereby passes as a liquid phase stream from the first reaction zone to the second distillation zone and the liquid phase steam is withdrawn from the distillation column reactor as bottoms.

    摘要翻译： 一种生产仲丁基苯的方法包括将含有苯和C 4烯烃的反应物进料到具有含有烷基化催化剂和第二蒸馏区的第一反应区的蒸馏塔反应器中，所述第一反应区位于所述第一反应区之下且基本上不含 烷基化催化剂，其中所述第一反应区中的蒸馏级数与所述第二蒸馏区中的蒸馏级数之比小于1:1。 同时在蒸馏反应器中，使反应物与第一反应区中的烷基化催化剂接触，使得C 4烯烃与苯反应产生仲丁基苯，仲丁基苯从未反应的C 4烯烃中分馏。 因此，仲丁基苯作为液相物流从第一反应区流向第二蒸馏区，液相蒸汽作为底部从蒸馏塔反应器中排出。

    Heterogeneous arylalkyl oxidation promoter
    87.
    发明授权
    Heterogeneous arylalkyl oxidation promoter 失效
    异构芳烷基氧化促进剂

    公开(公告)号：US07692046B2

    公开(公告)日：2010-04-06

    申请号：US11821020

    申请日：2007-06-21

    申请人： Matthew W. Holtcamp ,  Renuka N. Ganesh ,  Tan-Jen Chen ,  Jihad M. Dakka

    发明人： Matthew W. Holtcamp ,  Renuka N. Ganesh ,  Tan-Jen Chen ,  Jihad M. Dakka

    IPC分类号： C07C409/00

    CPC分类号： B01J23/745 ,  B01J31/0211 ,  B01J31/0252 ,  B01J35/0033 ,  B01J37/0203 ,  B01J2231/70 ,  C07C407/00 ,  C07C409/10 ,  C07C409/14 ,  C07C2601/14 ,  C07C409/08

    摘要： A promoter can have utility in selective heterogeneous oxidation of arylalkyl hydrocarbons such as, for example, cyclohexyl benzene and/or sec-butyl benzene to form hydroperoxides. The promoter can include the product of contacting a solid support comprising a metal oxide surface and an iron compound. The solid support can include, for example, titanium dioxide and/or an iron oxide such as magnetite and can have magnetic susceptibility. A method for the oxidation of arylalkyl hydrocarbons to form hydroperoxides can include contacting 16 an arylalkyl hydrocarbon with oxygen in the presence of the promoter under catalytic oxidation conditions to form arylalkyl hydroperoxide, which can then be converted to phenol via cleavage 26. The method can include recovery 22 of the promoter from the arylalkyl hydroperoxide and can further include recycling the recovered promoter to the contacting 16. Where the solid support has magnetic susceptibility, the recovery 22 can include magnetic separation of the promoter.

    摘要翻译： 助催化剂可用于芳基烷基烃例如环己基苯和/或仲丁基苯的选择性异相氧化以形成氢过氧化物。 助催化剂可以包括使包含金属氧化物表面和铁化合物的固体载体接触的产物。 固体支持体可以包括例如二氧化钛和/或氧化铁如磁铁矿，并且可以具有磁化率。 用于氧化芳基烷基烃以形成氢过氧化物的方法可以包括在催化氧化条件下在助催化剂存在下使芳烷基烃与氧接触，形成芳基烷基氢过氧化物，然后可通过裂解将其转化为苯酚。该方法可包括 从芳基烷基氢过氧化物中回收22个启动子，并且可以进一步包括将回收的促进剂再循环到接触16.当固体支持物具有磁化率时，回收22可以包括促进剂的磁性分离。