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    Isomerization of ethylbenzene and xylenes
    13.
    发明授权
    Isomerization of ethylbenzene and xylenes 失效
    乙苯异构化和二甲苯

    公开(公告)号：US06660896B1

    公开(公告)日：2003-12-09

    申请号：US10418439

    申请日：2003-04-16

    申请人： John Scott Buchanan ,  Xiaobing Feng ,  Gary David Mohr ,  David L. Stern

    发明人： John Scott Buchanan ,  Xiaobing Feng ,  Gary David Mohr ,  David L. Stern

    IPC分类号： C07C527

    CPC分类号： C07C5/2708 ,  C07C2529/40 ,  C07C2529/74 ,  C07C15/08

    摘要： In a process for isomerizing a feed comprising ethylbenzene and a mixture of xylene isomers, the feed is first contacted under xylene isomerization conditions with a first catalyst composition to produce an intermediate product having a higher para-xylene concentration than the feed, and then the intermediate product is contacted under ethylbenzene isomerization conditions with a second catalyst composition. The second catalyst composition comprises a hydrogenation-dehydrogenation component and a molecular sieve having 10-membered ring pores and is effective to selectively isomerize at least part of the ethylbenzene in the intermediate product to para-xylene and thereby produce a further product having a para-xylene concentration greater than the equilibrium concentration of para-xylene at said ethylbenzene isomerization conditions.

    摘要翻译： 在包含乙苯和二甲苯异构体的混合物的进料异构化的方法中，首先在二甲苯异构化条件下与第一催化剂组合物接触进料以产生具有比进料更高的对二甲苯浓度的中间产物，然后中间体 产物在乙苯异构化条件下与第二催化剂组合物接触。 第二催化剂组合物包含氢化脱氢组分和具有10元环孔的分子筛，并且有效地将中间产物中的至少部分乙苯选择性异构化成对二甲苯，从而产生另外具有对 - 所述乙苯异构化条件下二甲苯浓度大于对二甲苯的平衡浓度。

    Oxidation of hydrocarbons
    18.
    发明授权
    Oxidation of hydrocarbons 有权
    碳氢化合物的氧化

    公开(公告)号：US08658836B2

    公开(公告)日：2014-02-25

    申请号：US12678419

    申请日：2008-10-08

    申请人： Francisco M. Benitez ,  Jihad M. Dakka ,  Edmund J. Mozeleski ,  Stephen Zushma ,  John Scott Buchanan ,  Jon E. Stanat

    发明人： Francisco M. Benitez ,  Jihad M. Dakka ,  Edmund J. Mozeleski ,  Stephen Zushma ,  John Scott Buchanan ,  Jon E. Stanat

    IPC分类号： C07C409/00

    CPC分类号： C07C409/08 ,  C07B41/00 ,  C07C37/07 ,  C07C37/08 ,  C07C37/20 ,  C07C45/33 ,  C07C45/53 ,  C07C51/313 ,  C07C407/00 ,  C07C409/04 ,  C07C409/10 ,  C07C409/14 ,  C07C2601/14 ,  C07C49/403 ,  C07C55/14 ,  C07C39/04 ,  C07C39/16

    摘要： In a process for oxidizing a hydrocarbon to the corresponding hydroperoxide, alcohol, ketone, carboxylic acid or dicarboxylic acid, a reaction medium comprising a hydrocarbon is contacted with an oxygen-containing gas in the presence of a catalyst comprising a cyclic imide of the general formula (I): wherein each of R1 and R2 is independently selected from hydrocarbyl and substituted hydrocarbyl radicals having 1 to 20 carbon atoms, or from the groups SO3H, NH2, OH and NO2, or from the atoms H, F, Cl, Br and I provided that R1 and R2 can be linked to one another via a covalent bond; each of Q1 and Q2 is independently selected from C, CH, N, and CR3; each of X and Z is independently selected from C, S, CH2, N, P and an element of Group 4 of the Periodic Table; Y is O or OH; k is 0, 1, or 2; l is 0, 1, or 2; m is 1 to 3; and R3 can be any of the entities listed for R1. The contacting is conducted under conditions such as to maintain the concentration of both water and organic acids in the reaction medium below 50 ppm.

    摘要翻译： 在将烃类氧化成相应的氢过氧化物，醇，酮，羧酸或二羧酸的方法中，将包含烃的反应介质与含氧气体在含有通式 （I）：其中R 1和R 2各自独立地选自具有1至20个碳原子的烃基和取代烃基，或从SO 3 H，NH 2，OH和NO 2基团，或从原子H，F，Cl，Br和 我提供R1和R2可以通过共价键彼此连接; Q1和Q2中的每一个独立地选自C，CH，N和CR 3; X和Z各自独立地选自C，S，CH 2，N，P和元素周期表第4族的元素; Y为O或OH; k为0,1或2; l为0,1或2; m为1〜3; 而R3可以是为R1列出的任何实体。 在使反应介质中的水和有机酸的浓度保持在50ppm以下的条件下进行接触。