Process for preparing isocyanates
    2.
    发明授权
    Process for preparing isocyanates 有权
    异氰酸酯的制备方法

    公开(公告)号:US08816126B2

    公开(公告)日:2014-08-26

    申请号:US13587378

    申请日:2012-08-16

    IPC分类号: C07C263/00 C07C263/10

    CPC分类号: C07C263/10 C07C265/14

    摘要: Process for preparing isocyanates by reacting the corresponding amines comprised in at least one feed stream A with phosgene comprised in at least one feed stream P in a reaction plant comprising at least one mixing zone and at least one reaction zone, wherein feed stream A and/or feed stream P optionally comprise one or more inert materials and,during periods of time in which the flow Sx of the amine used is below the flow S0 of the amines used during operation at the nominal capacity of the reactor plant, (i) the ratio of phosgene to amine is increased and/or (ii) the concentration of the inert material or materials in the amine-comprising feed stream A and/or the phosgene-comprising feed stream P is increased compared to operation at the nominal capacity of the reactor.

    摘要翻译: 通过在至少一个进料流A中包含的相应的胺与包含在至少一个进料流P中的光气反应制备异氰酸酯的方法,该反应装置包含至少一个混合区和至少一个反应区,其中进料流A和/ 或进料流P任选地包含一种或多种惰性材料,并且在所用胺的流Sx低于在反应器设备的标称容量下在操作期间使用的胺的流S 0的时间段内,(i) 光气与胺的比率增加,和/或(ii)与含有胺的进料流A和/或含光气的进料流P中的惰性材料或材料的浓度相比,在标称容量 反应堆。

    PROCESS FOR PREPARING ISOCYANATES
    3.
    发明申请
    PROCESS FOR PREPARING ISOCYANATES 有权
    制备异氰酸酯的方法

    公开(公告)号:US20130060062A1

    公开(公告)日:2013-03-07

    申请号:US13587378

    申请日:2012-08-16

    IPC分类号: C07C263/10

    CPC分类号: C07C263/10 C07C265/14

    摘要: Process for preparing isocyanates by reacting the corresponding amines comprised in at least one feed stream A with phosgene comprised in at least one feed stream P in a reaction plant comprising at least one mixing zone and at least one reaction zone, wherein feed stream A and/or feed stream P optionally comprise one or more inert material s and,during periods of time in which the flow Sx of the amine used is below the flow S0 of the amines used during operation at the nominal capacity of the reactor plant, (i) the ratio of phosgene to amine is increased and/or (ii) the concentration of the inert material or materials in the amine-comprising feed stream A and/or the phosgene-comprising feed stream P is increased compared to operation at the nominal capacity of the reactor.

    摘要翻译: 通过在至少一个进料流A中包含的相应的胺与包含在至少一个进料流P中的光气反应制备异氰酸酯的方法,该反应装置包含至少一个混合区和至少一个反应区,其中进料流A和/ 或进料流P任选地包含一种或多种惰性物质,并且在所用胺的流量Sx低于在反应器设备的标称容量下在操作期间使用的胺的流S 0的时间段期间,(i) 光气与胺的比例增加,和/或(ii)与含有胺的进料流A和/或含光气的进料流P中的惰性材料或材料的浓度相比,在标称容量 反应堆。

    Reactor for testing catalyst systems
    4.
    发明授权
    Reactor for testing catalyst systems 失效
    用于测试催化剂体系的反应器

    公开(公告)号:US07402288B2

    公开(公告)日:2008-07-22

    申请号:US10478684

    申请日:2002-06-05

    摘要: A reactor for testing catalyst systems which has a plurality of catalyst tubes (2) which are arranged parallel to one another in the interior space of the reactor and whose ends are welded into tube plates and also has caps (3) at each end of the reactor which each bound a cap space (4), with a fluid reaction medium (5) being fed via one cap space (4) into the catalyst tubes (2), flowing through the catalyst tubes (2) and being discharged via the other cap space (4), and is also provided with a heat exchange medium circuit in which the heat exchange medium (6) is fed in at one end of the reactor, flows through the intermediate space between the catalyst tubes (2) and flows out at the other end of the reactor, wherein the catalyst tubes (2) are arranged in two or more catalyst tube regions (7) which are thermally separate from one another, is proposed.

    摘要翻译: 一种用于测试催化剂体系的反应器,其具有多个催化剂管(2),所述多个催化剂管(2)在所述反应器的内部空间中彼此平行地布置,并且其端部被焊接到管板中,并且在所述反应器的每一端具有盖(3) 反应器,每个反应器结合盖空间(4),流体反应介质(5)经由一个盖空间(4)进入催化剂管(2),流过催化剂管(2)并经由另一个排出 盖子空间(4),并且还设置有热交换介质回路,其中热交换介质(6)在反应器的一端进料,流过催化剂管(2)之间的中间空间并流出 在反应器的另一端,其中催化剂管(2)布置在彼此热分离的两个或更多个催化剂管区域(7)中。

    Pump for transporting heat-exchange medium for a multi-tube reactor
    5.
    发明授权
    Pump for transporting heat-exchange medium for a multi-tube reactor 有权
    用于输送多管反应器的热交换介质的泵

    公开(公告)号:US07134848B2

    公开(公告)日:2006-11-14

    申请号:US10479625

    申请日:2002-06-05

    IPC分类号: G21C19/04

    CPC分类号: F04D3/00 F04D29/406

    摘要: The invention relates to a pump (1) having a pump guide tube (13) for the transport of a heat-exchange medium (6) for a reactor having a bundle of catalyst tubes (2), where the pump (1) has a casing (14) which surrounds the pump guide tube (13), having an aperture (15) in the lower part of the casing (14) via which the heat-exchange medium (6) discharged from the lower region of the reactor by means of the pump (1) flows into the casing (14), flows upward in the region between the inner wall of the casing (14) and the outer wall of the pump guide tube (13), if desired via a heat exchanger (18), flows into the interior of the pump guide tube (13) via an aperture (16) in the upper region of the pump guide tube (13), flows through the pump guide tube (13) from top to bottom and flows via an aperture (17) in the lower region of the pump guide tube (13) into the reactor, into the upper region of the interspace between the catalyst tubes (2).

    摘要翻译: 本发明涉及一种具有泵引导管(13)的泵(1),用于输送用于具有一束催化剂管(2)的反应器的热交换介质(6),其中泵(1)具有 围绕所述泵引导管(13)的壳体(14),在所述壳体(14)的下部具有孔(15),所述热交换介质(6)经由所述开口(15)从所述反应器的下部区域排出, 如果需要,通过热交换器(18)将泵(1)流入壳体(14)中,在壳体(14)的内壁和泵引导管(13)的外壁之间的区域中向上流动 )通过泵引导管(13)的上部区域中的孔(16)流入泵引导管(13)的内部,从上到下流过泵引导管(13),并经由 在泵引导管(13)的下部区域中的孔(17)进入反应器,进入催化剂管(2)之间的间隙的上部区域。

    In situ recoating of catalyst beds
    6.
    发明申请
    In situ recoating of catalyst beds 失效
    催化剂床的原位重涂

    公开(公告)号:US20060205586A1

    公开(公告)日:2006-09-14

    申请号:US10551858

    申请日:2004-04-02

    IPC分类号: B01J38/48

    摘要: A process for coating internals in a reactor, except for the coating of electrically heatable, at least partly open-cell foams, with a catalytically active material or a precursor thereof is described, in which an aerosol which contains, as a disperse phase, the catalytically active material or the precursor thereof is provided and the aerosol is passed through the reactor at a velocity which is established so that the disperse phase of the aerosol is deposited on the internals in the reactor.

    摘要翻译: 描述了用催化活性材料或其前体在反应器中涂覆内部材料的方法,除了电可加热的至少部分开放泡沫的涂层,其中包含作为分散相的气溶胶, 提供了催化活性材料或其前体,气雾剂以一定速度通过反应器,使得气溶胶的分散相沉积在反应器内部。

    Process for preparing isocyanates
    7.
    发明授权
    Process for preparing isocyanates 有权
    异氰酸酯的制备方法

    公开(公告)号:US09321720B2

    公开(公告)日:2016-04-26

    申请号:US13273734

    申请日:2011-10-14

    IPC分类号: C07C263/10

    摘要: Process for preparing isocyanates by reacting the corresponding amines with phos-gene comprising (a) providing at least one amine-comprising feed stream and at least one phosgene-comprising feed stream, (b) mixing the feed streams to form at least one reaction mixture in a mixing zone, (c) reacting the at least one reaction mixture in a reaction zone and (d) working-up the product mixture obtained from (c).

    摘要翻译: 通过使相应的胺与磷酸基团反应制备异氰酸酯的方法,该方法包括(a)提供至少一种含胺进料流和至少一种含光气的进料流,(b)混合进料流以形成至少一种反应混合物 在混合区中,(c)使反应区中的至少一种反应混合物反应,和(d)加工得自(c)的产物混合物。

    Process for preparing isocyanates
    8.
    发明授权
    Process for preparing isocyanates 有权
    异氰酸酯的制备方法

    公开(公告)号:US08969615B2

    公开(公告)日:2015-03-03

    申请号:US13434135

    申请日:2012-03-29

    摘要: The present invention relates to gas phase phosgenation of amines for preparation of isocyanates. In the present invention, phosgene is prepared by reacting chlorine with an excess of carbon monoxide in a gas phase. The obtained phosgene-containing reaction mixture is divided into two streams by a thermal and/or a membrane separating process. The first stream is a low-carbon monoxide stream of no more than 1% by weight of carbon monoxide, based on a total weight of the first stream. The second stream is a carbon monoxide-rich stream of more than 10% by weight of carbon monoxide, based on a total weight of the second stream. The first stream is used as the phosgene-containing reactant stream in the gas phase phosgenation of amines to prepare isocyanates. The second stream can be recycled into the phosgene synthesis.

    摘要翻译: 本发明涉及用于制备异氰酸酯的胺的气相光气化。 在本发明中,气相中的氯与过量的一氧化碳反应制备光气。 得到的含有光气的反应混合物通过热和/或膜分离方法分成两股。 基于第一料流的总重量,第一料流是不超过1重量%的一氧化碳的低碳一氧化碳流。 基于第二料流的总重量,第二料流是大于10重量%的一氧化碳的一氧化碳浓缩物流。 在胺的气相光气化中,将第一流用作含有光气的反应物流,以制备异氰酸酯。 第二流可以再循环进入光气合成。

    Reactor and method for producing phosgene
    9.
    发明授权
    Reactor and method for producing phosgene 有权
    反应器和生产光气的方法

    公开(公告)号:US08409539B2

    公开(公告)日:2013-04-02

    申请号:US10504848

    申请日:2003-02-12

    IPC分类号: C01G1/04

    摘要: A reactor (1) for preparing phosgene by gas-phase reaction of carbon monoxide and chlorine in the presence of a solid catalyst, which reactor has a bundle of parallel catalyst tubes (2) aligned in the longitudinal direction of the reactor whose ends are fixed in tube plates (3) and have a cap (4) at each end of the reactor (1), and has deflection plates (6) which are aligned perpendicular to the longitudinal direction of the reactor in the intermediate space (5) between the catalyst tubes (2) and leave free passages (7) located alternately opposite one another on the interior wall of the reactor, and in which the catalyst tubes (2) are charged with the solid catalyst, the gaseous reaction mixture is passed from one end of the reactor via one cap (4) through the catalyst tubes (2) and is taken off from the opposite end of the reactor (1) via the second cap (4) and a liquid heat transfer medium is passed through the intermediate space (5) around the catalyst tubes (2), where the reactor (1) has no tubes in the region of the passages (7), is proposed.

    摘要翻译: 一种用于在固体催化剂存在下通过一氧化碳和氯的气相反应制备光气的反应器(1),该反应器具有一束平行的催化剂管(2),其在端部固定的反应器的纵向上排列 在管板(3)中并且在反应器(1)的每个端部具有盖(4),并且具有偏转板(6),其在中间空间(5)中的反应器的纵向方向上垂直于第 催化剂管(2)并且在反应器的内壁上彼此交替地相互离开的自由通道(7),并且催化剂管(2)中装有固体催化剂,气态反应混合物从一端 的反应器通过催化剂管(2)通过一个盖(4)通过第二盖(4)从反应器(1)的相对端排出,液体传热介质通过中间空间 5)在催化剂管(2)周围,其中反应器 (1)在通道(7)的区域中没有管,被提出。

    METHOD FOR PRODUCING DIISOCYANATES BY GAS-PHASE PHOSGENATION
    10.
    发明申请
    METHOD FOR PRODUCING DIISOCYANATES BY GAS-PHASE PHOSGENATION 失效
    通过气相磷酸生产二异氰酸酯的方法

    公开(公告)号:US20120142959A1

    公开(公告)日:2012-06-07

    申请号:US13389955

    申请日:2010-08-10

    IPC分类号: C07C263/10

    摘要: A process for preparing diisocyanates by gas-phase phosgenation starting out from a feed stream comprising the corresponding diamines and a phosgene-comprising feed stream, in which the feed streams are separately converted into the gas phase and preheated to the reaction temperature of the gas-phase phosgenation, wherein the waste heat from a plant for preparing chlorine by heterogeneously catalyzed oxidation of hydrogen chloride by the Deacon process is utilized for this purpose, is proposed.

    摘要翻译: 从包含相应的二胺和含光气的进料流的进料流中开始通过气相光气化制备二异氰酸酯的方法,其中将进料流分离地转化为气相并预热至气 - 提出了通过Deacon方法由氯化氢的非均相催化氧化制备氯的废物的废热。