Process of preparing para substituted phenylamines
    8.
    发明授权
    Process of preparing para substituted phenylamines 失效
    制备对位取代的苯胺的方法

    公开(公告)号:US5689007A

    公开(公告)日:1997-11-18

    申请号:US729703

    申请日:1996-10-07

    IPC分类号: C07C209/68 C07C209/36

    CPC分类号: C07C209/68

    摘要: Processes of preparing para substituted phenylamines, such as, p-phenylenediamines, and particularly, p-aminodiphenylamine. One process involves contacting phenylhydroxylamine with a nucleophilic reagent, such as aniline, in specified proportions and within a specified temperature range, in the absence of oxygen, and in the presence of a homogeneous acid catalyst, such as hydrochloric acid. A second process involves contacting phenylhydroxylamine with a nucleophilic reagent, such as aniline, in the presence of a solid acid catalyst, such as acidic zeolite Y, under reaction conditions.

    摘要翻译: 制备对位取代的苯胺的方法,如对苯二胺,特别是对氨基二苯胺。 一个方法包括在不存在氧的情况下,在均相酸催化剂如盐酸的存在下,以规定的比例和规定的温度范围内将苯基羟胺与亲核试剂如苯胺接触。 第二个过程包括在反应条件下,在固体酸催化剂如酸性沸石Y的存在下使苯基羟胺与亲核试剂如苯胺接触。

    Process of preparing para substituted phenylamines
    9.
    发明授权
    Process of preparing para substituted phenylamines 失效
    制备对位取代的苯胺的方法

    公开(公告)号:US5574187A

    公开(公告)日:1996-11-12

    申请号:US318927

    申请日:1994-10-06

    IPC分类号: C07C209/68 C07C209/02

    CPC分类号: C07C209/68

    摘要: Processes of preparing para substituted phenylamines, such as, p-phenylenediamines, and particularly, p-aminodiphenylamine. One process involves contacting phenylhydroxylamine with a nucleophilic reagent, such as aniline, in specified proportions and within a specified temperature range, in the absence of oxygen, and in the presence of a homogeneous acid catalyst, such as hydrochloric acid. A second process involves contacting phenylhydroxylamine with a nucleophilic reagent, such as aniline, in the presence of a solid acid catalyst, such as acidic zeolite Y, under reaction conditions.

    摘要翻译: 制备对位取代的苯胺的方法,如对苯二胺,特别是对氨基二苯胺。 一个方法包括在不存在氧的情况下,在均相酸催化剂如盐酸的存在下,以规定的比例和规定的温度范围内将苯基羟胺与亲核试剂如苯胺接触。 第二个过程包括在反应条件下,在固体酸催化剂如酸性沸石Y的存在下使苯基羟胺与亲核试剂如苯胺接触。

    Process for producing ethylene via oxidative dehydrogenation (ODH) of ethane
    10.
    发明授权
    Process for producing ethylene via oxidative dehydrogenation (ODH) of ethane 有权
    通过乙烷的氧化脱氢(ODH)生产乙烯的方法

    公开(公告)号:US08519210B2

    公开(公告)日:2013-08-27

    申请号:US12417523

    申请日:2009-04-02

    IPC分类号: C07C5/333

    摘要: A process for the oxidative dehydrogenation of ethane is disclosed. The process may include: contacting an ethane feed and an oxygen-containing gas in the presence of an oxidative dehydrogenation catalyst in an oxidative dehydrogenation reaction zone under conditions to oxidatively dehydrogenate at least a portion of the ethane to produce a product stream comprising ethylene, carbon oxides, water, and unreacted oxygen and ethane, wherein an oxygen concentration in the product stream is at least 0.1 mol %; contacting the product stream with an oxygen elimination catalyst in an oxygen elimination reaction zone to combust at least a portion of the oxygen; recovering from the oxygen elimination reaction zone an effluent having a reduced oxygen content; separating water from the effluent; separating carbon oxides and any non-condensable gas(es) from the ethylene and the unreacted ethane; and separating the ethylene from the unreacted ethane.

    摘要翻译: 公开了一种乙烷氧化脱氢方法。 该方法可以包括:在氧化脱氢反应区中在氧化脱氢反应区存在下使乙烷进料和含氧气体接触,以使至少部分乙烷氧化脱氢以产生包含乙烯,碳 氧化物,水和未反应的氧和乙烷,其中产物流中的氧浓度为至少0.1mol%; 使产物流与消氧反应区中的消除氧化催化剂接触以燃烧至少一部分氧; 从氧消除反应区回收具有降低的氧含量的流出物; 从流出物中分离水; 从乙烯和未反应的乙烷中分离碳氧化物和任何不可冷凝气体; 并将乙烯与未反应的乙烷分离。