Production of dialkylbenzenes
    1.
    发明授权
    Production of dialkylbenzenes 有权
    生产二烷基苯

    公开(公告)号:US07361798B2

    公开(公告)日:2008-04-22

    申请号:US10946553

    申请日:2004-09-21

    IPC分类号: C07C5/22 C07C1/20

    摘要: The invention relates to a process for producing a desired dialkylbenzene isomer having a formula R2C6H4, where R is an alkyl substituent, by contacting a polyalkylbenzene compound of formula RnC6H6-n, where n is an integer between 2 and 4, with a monoalkylbenzene compound of formula RC6H5 in the presence of a molecular sieve catalyst under reaction conditions sufficient to produce said dialkybenzene isomer. The preferred molecular sieve catalysts have pores or surface cavities greater than 5.6 Angstroms in diameter and/or 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: 本发明涉及制备具有式R 2 C 6 H 4 H 4的所需二烷基苯异构体的方法,其中R是烷基取代基, 通过使式R n 6 C 6 H 6-n N的多烷基苯化合物(其中n是2和4之间的整数)与单烷基苯 在分子筛催化剂存在下,在足以产生所述二烷基苯异构体的反应条件下,式RC 6 H 5 H 5的化合物。 优选的分子筛催化剂具有直径大于5.6埃的孔或表面空腔和/或包括在12.4±0.25,6.9±0.15,3.57±0.07和3.42±0.07埃处的d间距最大值的X射线衍射图。

    Process for producing cyclohexylbenzene
    8.
    发明授权
    Process for producing cyclohexylbenzene 有权
    生产环己基苯的方法

    公开(公告)号:US07906685B2

    公开(公告)日:2011-03-15

    申请号:US12601572

    申请日:2008-08-12

    CPC分类号: C07C2/74 Y02P20/52 C07C13/28

    摘要: In a process for producing cyclohexylbenzene, benzene and hydrogen are fed to at least one reaction zone. The benzene and hydrogen are then contacted in the at least one reaction zone under hydroalkylation conditions with a catalyst system comprising a molecular sieve 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, and at least one hydrogenation metal to produce an effluent containing cyclohexylbenzene. The ratio of the total number of moles of hydrogen fed to said at least one reaction zone to the number of moles of benzene fed to said at least one reaction zone is between 0.4 and 0.9:1.

    摘要翻译: 在生产环己基苯的方法中,将苯和氢气进料至至少一个反应区。 然后使苯和氢在加氢烷基化条件下在至少一个反应区中与包含分子筛的催化剂体系接触,所述催化剂体系包含具有12.4±0.25,6.9±0.15,3.57±0.07的d间距最大值的X射线衍射图, 3.42±0.07埃,和至少一种氢化金属,以生产含有环己基苯的流出物。 供给到所述至少一个反应区的氢的总摩尔数与进料到所述至少一个反应区的苯的摩尔数之比为0.4-0.9:1。

    Process For Producing Cyclohexylbenzene
    10.
    发明申请
    Process For Producing Cyclohexylbenzene 有权
    生产环己基苯的方法

    公开(公告)号:US20100197971A1

    公开(公告)日:2010-08-05

    申请号:US12601572

    申请日:2008-08-12

    IPC分类号: C07C5/10 C07C45/27 C07C37/08

    CPC分类号: C07C2/74 Y02P20/52 C07C13/28

    摘要: In a process for producing cyclohexylbenzene, benzene and hydrogen are fed to at least one reaction zone. The benzene and hydrogen are then contacted in the at least one reaction zone under hydroalkylation conditions with a catalyst system comprising a molecular sieve 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, and at least one hydrogenation metal to produce an effluent containing cyclohexylbenzene. The ratio of the total number of moles of hydrogen fed to said at least one reaction zone to the number of moles of benzene fed to said at least one reaction zone is between 0.4 and 0.9:1.

    摘要翻译: 在生产环己基苯的方法中,将苯和氢气进料至至少一个反应区。 然后使苯和氢在加氢烷基化条件下在至少一个反应区中与包含分子筛的催化剂体系接触,所述催化剂体系包含具有12.4±0.25,6.9±0.15,3.57±0.07的d间距最大值的X射线衍射图, 3.42±0.07埃,和至少一种氢化金属,以生产含有环己基苯的流出物。 供给到所述至少一个反应区的氢的总摩尔数与进料到所述至少一个反应区的苯的摩尔数之比为0.4-0.9:1。