Process for workup of a stream comprising butene and/or butadiene
    1.
    发明授权
    Process for workup of a stream comprising butene and/or butadiene 有权
    用于后处理包含丁烯和/或丁二烯的流的方法

    公开(公告)号:US08420879B2

    公开(公告)日:2013-04-16

    申请号:US13411080

    申请日:2012-03-02

    IPC分类号: C07C7/08

    摘要: The invention relates to a process for workup of a stream (1) comprising butene and/or butadiene, butane, hydrogen and/or nitrogen and carbon dioxide, comprising: (a) absorption of stream (1) with a mixture (5) comprising 80 to 97% by weight of N-methylpyrrolidone and 3 to 20% by weight of water to obtain a stream (9) comprising N-methylpyrrolidone, water, butene and/or butadiene, butane, and optionally carbon dioxide, and a stream (7) comprising hydrogen and/or nitrogen and butane, (b) extractive distillation of stream (9) with a stream (13) comprising 80 to 97% by weight of N-methylpyrrolidone and 3 to 20% by weight of water to separate the stream (9) into a stream (17) comprising N-methylpyrrolidone, water, butene and/or butadiene, and a stream (15) comprising essentially butane, and optionally carbon dioxide, (c) distillation of stream (17) into a stream (23) comprising essentially N-methylpyrrolidone and water, and a stream (21) comprising butene and/or butadiene.

    摘要翻译: 本发明涉及一种用于后处理包含丁烯和/或丁二烯,丁烷,氢气和/或氮气和二氧化碳的物流(1)的方法,其包括:(a)通过混合物(5)吸收料流(1) 80至97重量%的N-甲基吡咯烷酮和3至20重量%的水,以获得包含N-甲基吡咯烷酮,水,丁烯和/或丁二烯,丁烷和任选的二氧化碳的流(9)和流 7)包含氢和/或氮和丁烷,(b)用包含80至97重量%的N-甲基吡咯烷酮和3至20重量%的水的料流(13)萃取蒸馏料流(9)以分离 (9)进入包含N-甲基吡咯烷酮,水,丁烯和/或丁二烯的物流(17)和基本上包含丁烷和任选的二氧化碳的物流(15),(c)将物流(17)蒸馏成流 (23)和包含丁烯和/或丁二烯的物流(21)。

    PROCESS FOR WORKUP OF A STREAM COMPRISING BUTENE AND/OR BUTADIENE
    2.
    发明申请
    PROCESS FOR WORKUP OF A STREAM COMPRISING BUTENE AND/OR BUTADIENE 有权
    用于工作包含有机和/或二倍体的流程的方法

    公开(公告)号:US20120226087A1

    公开(公告)日:2012-09-06

    申请号:US13411080

    申请日:2012-03-02

    IPC分类号: C07C7/11 C07C7/04 C07C7/08

    摘要: The invention relates to a process for workup of a stream (1) comprising butene and/or butadiene, butane, hydrogen and/or nitrogen and carbon dioxide, comprising: (a) absorption of stream (1) with a mixture (5) comprising 80 to 97% by weight of N-methylpyrrolidone and 3 to 20% by weight of water to obtain a stream (9) comprising N-methylpyrrolidone, water, butene and/or butadiene, butane, and optionally carbon dioxide, and a stream (7) comprising hydrogen and/or nitrogen and butane, (b) extractive distillation of stream (9) with a stream (13) comprising 80 to 97% by weight of N-methylpyrrolidone and 3 to 20% by weight of water to separate the stream (9) into a stream (17) comprising N-methylpyrrolidone, water, butene and/or butadiene, and a stream (15) comprising essentially butane, and optionally carbon dioxide, (c) distillation of stream (17) into a stream (23) comprising essentially N-methylpyrrolidone and water, and a stream (21) comprising butene and/or butadiene.

    摘要翻译: 本发明涉及一种用于后处理包含丁烯和/或丁二烯,丁烷,氢气和/或氮气和二氧化碳的物流(1)的方法,其包括:(a)通过混合物(5)吸收料流(1) 80至97重量%的N-甲基吡咯烷酮和3至20重量%的水,以获得包含N-甲基吡咯烷酮,水,丁烯和/或丁二烯,丁烷和任选的二氧化碳的流(9)和流 7)包含氢和/或氮和丁烷,(b)用包含80至97重量%的N-甲基吡咯烷酮和3至20重量%的水的料流(13)萃取蒸馏料流(9)以分离 (9)进入包含N-甲基吡咯烷酮,水,丁烯和/或丁二烯的物流(17)和基本上包含丁烷和任选的二氧化碳的物流(15),(c)将物流(17)蒸馏成流 (23)和包含丁烯和/或丁二烯的物流(21)。

    PROCESS FOR PREPARING TETRAHYDROFURAN
    6.
    发明申请
    PROCESS FOR PREPARING TETRAHYDROFURAN 审中-公开
    制备四氢呋喃的方法

    公开(公告)号:US20110245517A1

    公开(公告)日:2011-10-06

    申请号:US12740468

    申请日:2009-11-05

    IPC分类号: C07D307/08

    CPC分类号: C07D307/08

    摘要: The present invention relates to a process for preparing tetrahydrofuran by absorption of C4-dicarboxylic acids and/or derivatives thereof from a crude product mixture into an organic solvent or water as absorption medium, removal of the absorption medium, catalytic hydrogenation of the resulting C4-dicarboxylic acids and/or derivatives thereof and distillation of the water-comprising crude tetrahydrofuran in at least one distillation column, wherein THF-comprising waste streams from the distillation are catalytically hydrogenated with complete or partial recirculation to the process.

    摘要翻译: 本发明涉及通过将C4-二羧酸和/或其衍生物从粗产物混合物吸收到作为吸收介质的有机溶剂或水中,去除吸收介质,催化氢化所得C4-二羧酸和/ 二羧酸和/或其衍生物,并在至少一个蒸馏塔中蒸馏含水的粗四氢呋喃,其中来自蒸馏的含THF的废物流通过完全或部分再循环进行催化氢化。

    Method for producing xylylenediamine (XDA)
    8.
    发明授权
    Method for producing xylylenediamine (XDA) 失效
    苯二甲胺(XDA)生产方法

    公开(公告)号:US07541497B2

    公开(公告)日:2009-06-02

    申请号:US10571584

    申请日:2004-08-27

    IPC分类号: C07C29/48

    CPC分类号: C07C209/48 C07C211/27

    摘要: A process for preparing xylylenediamine, comprising the steps of ammoxidizing xylene to phthalonitrile, by contacting the vaporous product of the ammoxidation stage directly with a liquid organic solvent (quench), and hydrogenating the phthalonitrile in the resulting quench solution or suspension, wherein the organic solvent is N-methyl-2-pyrrolidone (NMP).

    摘要翻译: 一种制备苯二甲胺的方法,包括通过使氨氧化阶段的蒸气产物直接与液体有机溶剂(骤冷)接触,并将所得的淬灭溶液或悬浮液中的邻苯二甲腈氢化,从而将二甲苯与邻苯二甲腈氨氧化,其中有机溶剂 是N-甲基-2-吡咯烷酮(NMP)。

    Method for producing xylylenediamine (XDA)
    9.
    发明授权
    Method for producing xylylenediamine (XDA) 失效
    苯二甲胺(XDA)生产方法

    公开(公告)号:US07528284B2

    公开(公告)日:2009-05-05

    申请号:US10571425

    申请日:2004-09-04

    IPC分类号: C07C209/00

    CPC分类号: C07C209/48 C07C211/27

    摘要: A process for preparing xylylenediamine, comprising the steps of ammoxidizing xylene to phthalonitrile and hydrogenating the phthalonitrile, which comprises contacting the vaporus product of the ammoxidation stage directly with a liquid organic solvent or with molten phthalonitrile (quench), partly or fully removing components having a boiling point lower than phthalonitrile (low boilers) from the resulting quench solution or suspention or phthalonitrile melt and, before the hydrogenation, of the phthalonitrile, not removing any products having a boiling point higher than phthalonitrile (high boilers).

    摘要翻译: 一种制备苯二甲胺的方法,包括以下步骤:将二甲苯与邻苯二甲腈氨化并氢化邻苯二甲腈,其包括将氨氧化阶段的蒸气产物直接与液体有机溶剂或熔融的邻苯二甲腈(骤冷)接触,部分或全部除去具有 沸点低于邻苯二甲腈(低锅炉),从所得的淬火溶液或悬浮液或邻苯二甲腈熔融,在氢化之前,邻苯二甲腈,不去除沸点高于邻苯二甲腈(高锅炉)的任何产物。