Process for preparing isocyanates
    1.
    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
    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: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 process for preparing phosgene
    3.
    发明授权
    Reactor and process for preparing phosgene 有权
    反应器和制备光气的方法

    公开(公告)号:US08492587B2

    公开(公告)日:2013-07-23

    申请号:US13140194

    申请日:2009-12-16

    IPC分类号: C07C51/58 B01J8/06

    摘要: A reactor (1) for preparing phosgene by gas-phase reaction of carbon monoxide and chlorine in the presence of a solid-state catalyst, which is provided in the catalyst tubes (2) of a bundle of catalyst tubes (2) which are arranged parallel to one another in the longitudinal direction of the reactor (1) and are welded at each of their two ends into a tube plate (3), with introduction of the starting materials at the upper end of the catalyst tubes (2) and discharge of the gaseous reaction mixture at the lower end of the catalyst tubes (2), in each case via a cap, and also with introduction and discharge facilities for a liquid heat transfer medium (6) in the intermediate space (4) between the catalyst tubes (2) , where the flow of the heat transfer medium (6) in the space (4) between the catalyst tubes (2) is guided by deflection plates (5), which leave alternating openings (7) free on opposite sides at the interior wall of the reactor, in which openings the deflection plates (5) have cutouts having the shape of a segment of a circle, and the reactor (1) has no tubes in the region of the openings (7), wherein the heat transfer coefficients at the interface between the catalyst tubes (2) and the heat transfer medium (6) are equalized over each reactor cross section by the flow paths of the heat transfer medium (6) in each reactor cross section, in each case measured from the first to last catalyst tube (2) in the flow direction of the heat transfer medium (6), being matched to one another by means of an altered arrangement of the catalyst tubes (2), is proposed.

    摘要翻译: 一种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),其设置在催化剂管束(2)的催化剂管(2)中,所述催化剂管(2)布置在 在反应器(1)的纵向上彼此平行并且在它们的两端中的每一端被焊接到管板(3)中,在催化剂管(2)的上端引入起始材料并将其放电 在催化剂管(2)的下端处的气体反应混合物,在每种情况下都经由盖子,并且还具有在中间空间(4)中的催化剂之间的液体传热介质(6)的引入和排出设备 管(2),其中在催化剂管(2)之间的空间(4)中的传热介质(6)的流动由偏转板(5)引导,偏转板(5)在相对侧留下交替的开口(7) 反应器的内壁,其中偏转板(5)具有c 具有圆形部分形状的旋转体,并且反应器(1)在开口(7)的区域中没有管,其中催化剂管(2)和传热介质之间的界面处的传热系数 (6)在每个反应器横截面上通过每个反应器横截面中的传热介质(6)的流动路径在每个反应器横截面中相等,在每种情况下,在第一至最后催化剂管(2)中在热传递的流动方向上测量 介质(6)通过催化剂管(2)的改变布置相互匹配。

    Reactor and method for producing phosgene
    4.
    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。

    REACTOR AND PROCESS FOR PREPARING PHOSGENE
    5.
    发明申请
    REACTOR AND PROCESS FOR PREPARING PHOSGENE 有权
    反应剂和制备磷酸盐的方法

    公开(公告)号:US20130072717A1

    公开(公告)日:2013-03-21

    申请号:US13675397

    申请日:2012-11-13

    IPC分类号: C01B31/28

    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
    7.
    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。

    PROCESS FOR PREPARING ISOCYANATES
    8.
    发明申请
    PROCESS FOR PREPARING ISOCYANATES 有权
    制备异氰酸酯的方法

    公开(公告)号:US20120095255A1

    公开(公告)日:2012-04-19

    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。

    REACTOR FOR CARRYING OUT A REACTION BETWEEN TWO FLUID STARTING MATERIALS OVER A CATALYST BED WITH PREMIXING OF THE FLUID STARTING MATERIALS IN A MIXING-IN DEVICE
    9.
    发明申请
    REACTOR FOR CARRYING OUT A REACTION BETWEEN TWO FLUID STARTING MATERIALS OVER A CATALYST BED WITH PREMIXING OF THE FLUID STARTING MATERIALS IN A MIXING-IN DEVICE 有权
    用于在混合装置中预先注入流体起动材料的催化床上实现两种流体起动材料之间的反应的反应器

    公开(公告)号:US20080145285A1

    公开(公告)日:2008-06-19

    申请号:US11959008

    申请日:2007-12-18

    IPC分类号: B01J8/02 B01J12/00 B01F5/04

    摘要: A reactor (1) for carrying out a reaction between two fluid starting materials (2, 3) over a catalyst bed (4) with premixing of the fluid starting materials (2, 3) before introduction into the catalyst bed within a delay time of less than 150 ms in a mixing-in device (5), wherein the mixing-in device (5) is made up of the following elements which are arranged essentially transverse to the inflow direction of the first fluid starting material stream (2): two or three rows arranged behind one another of tubes (6) which have turbulence generators on the outside and constrict the flow cross section for the first fluid starting material stream (2) to from ½ to 1/10, with the second fluid starting material stream (3) being passed through the interiors of the tubes (6) and injected via openings (7) in the tubes (6) into the first fluid starting material stream (2), and a perforated plate (10) upstream of the tubes (6) and a perforated plate (11) downstream of the tubes (6), is proposed.

    摘要翻译: 一种反应器(1),用于在催化剂床(4)的延迟时间内引入催化剂床之前,预先混合流体原料(2,3),在两个流体原料(2,3)之间进行反应, 在混合装置(5)中小于150ms,其中混合装置(5)由基本上横向于第一流体原料流(2)的流入方向布置的以下元件组成: 两个或三个排布置在彼此的另一个管(6)之上,其在外部具有湍流发生器,并且将第一流体原料流(2)的流动横截面收缩到1/2至1/10,其中第二流体起始材料 流(3)通过管(6)的内部并通过管(6)中的开口(7)注入到第一流体原料流(2)中,并且在管的上游注入多孔板(10) (6)和多孔板(11) 提出了管(6)。

    Reactor comprising a contact tube bundle
    10.
    发明授权
    Reactor comprising a contact tube bundle 失效
    反应器包括接触管束

    公开(公告)号:US06756023B1

    公开(公告)日:2004-06-29

    申请号:US09744447

    申请日:2001-01-24

    IPC分类号: B01J806

    摘要: The invention proposes a reactor (1) having a contact tube bundle (2) through whose space surrounding the contact tubes a heat-exchange medium circuit is passed, with ring lines (3, 4) at both ends of the reactor with jacket apertures (5, 6) for the supply and discharge of a heat-exchange medium by means of a pump via an external heat exchanger, where the heat-exchange medium is fed to the lower ring line (4) and is discharged to the heat exchanger via the upper ring line (3), and with baffle plates (7) which leave a passage cross section alternately in the reactor center and at the reactor edge. The upper (3) and lower (4) ring lines are each divided into an inner (11, 13) and an outer (12, 14) ring line by a cylindrical partition wall (8, 9), and the heat-exchange medium is fed to the outer lower ring line (14), via a region outside the reactor to the inner upper ring line (11), via the jacket apertures (5) of the latter to the region surrounding the contact tubes (2), via the jacket apertures (6) to the inner lower ring line (13) and subsequently via a region outside the reactor to the outer upper ring line (12).

    摘要翻译: 本发明提出了一种具有接触管束(2)的反应器(1),通过其接触管周围的空间通过热交换介质回路,反应器两端的环形线(3,4)具有护套孔(2) 5,6),用于通过外部热交换器通过泵供给和排出热交换介质,其中热交换介质被供给到下环管线(4),并通过外部热交换器排出到热交换器 上环线(3)和挡板(7),其在反应器中心和反应器边缘处交替地留下通道横截面。 上部(3)和下部(4)环形线通过圆柱形分隔壁(8,9)分别分成内部(11,13)和外部(12,14)环形线,热交换介质 经由反应器外部的区域经由内侧上环线(11)经由其后部的护套孔(5)经由接触管(2)周围的区域经由 所述护套孔(6)到所述内下环线(13),并且随后经由所述反应器外部的区域到所述外上环线(12)。