Method for producing chlorine
    1.
    发明授权
    Method for producing chlorine 有权
    生产氯的方法

    公开(公告)号:US08097232B2

    公开(公告)日:2012-01-17

    申请号:US11816045

    申请日:2006-02-20

    IPC分类号: C01B7/04

    CPC分类号: C01B7/075 C01B7/04 C01B7/0743

    摘要: A catalytic process for preparing chlorine from hydrogen chloride, which includes recycle of process streams with reduced accumulation of inert gases in the system is provided. The process includes a step wherein a compressed liquid stream comprising chlorine, carbon dioxide and oxygen is recycled into a column countercurrent to the ascending gas phase and feeding part of the chlorine-rich liquid phase leaving the bottom of the column back into the top of the column. Carbon dioxide present in the ascending gas stream is dissolved out of the gas stream and can later be separated from chlorine without problems by distillation.

    摘要翻译: 提供了一种从氯化氢制备氯的催化方法,其包括在系统中减少惰性气体积聚的工艺流的再循环。 该方法包括一个步骤,其中将包含氯气,二氧化碳和氧气的压缩液体流循环到与上升气相逆流的塔中,并使离开塔底的富氯液相的一部分进入到顶部 柱。 存在于上升气流中的二氧化碳从气流中溶解出来,随后可以通过蒸馏从氯中分离而无问题。

    PROCESS FOR PREPARING CHLORINE
    2.
    发明申请
    PROCESS FOR PREPARING CHLORINE 审中-公开
    制备氯仿的方法

    公开(公告)号:US20110318259A1

    公开(公告)日:2011-12-29

    申请号:US13255111

    申请日:2010-03-25

    IPC分类号: C01B7/04

    CPC分类号: C01B7/04

    摘要: A process for preparing chlorine by oxidation of hydrogen chloride in the presence of a heterogeneous particulate catalyst by the Deacon process in a fluidized-bed reactor (1), in which the heat of reaction is removed by evaporative cooling by means of water which circulates in the tubes (2) of a shell-and-tube heat exchanger, with the water being fed from a steam drum (4) via a feed line (5) to the tubes (2) of the shell-and-tube heat exchanger at one end of these, being heated in the tubes (2) by uptake of the heat of reaction and partly vaporizing to give a water/steam mixture which at the other end of the tubes (2) of the shell-and-tube heat exchanger is recirculated via a return line (6) to the steam drum (4), wherein the maximum pressure for which the fluidized-bed reactor (1) has to be designed to allow for the event of rupture of a tube (2) of the shell-and-tube heat exchanger is minimized by a valve (7) which in the event of a pressure increase as a result of rupture of a tube (2) closes the feed line (5) and the return line (6) is installed in the feed line (5) and the return line (6) and thereby prevents water flowing from the steam drum (4) into the fluidized-bed reactor (1), is proposed.

    摘要翻译: 在流化床反应器(1)中通过Deacon方法在异相颗粒催化剂存在下通过氯化氢氧化制备氯的方法,其中反应热通过在水中循环的水蒸发冷却除去 管式热交换器的管(2),其中水从蒸汽鼓(4)通过供给管线(5)供给到管壳式热交换器的管(2) 其一端通过吸收反应热并部分蒸发而在管(2)中加热,得到水/蒸汽混合物,其在管壳式热交换器的管(2)的另一端 通过返回管线(6)再循环到蒸汽鼓(4),其中流化床反应器(1)必须被设计成允许管(2)的破裂的事件的最大压力 管壳式换热器通过阀(7)最小化,阀(7)在由于管的破裂而发生压力增加的情况下 (2)关闭进料管线(5),并且返回管线(6)安装在进料管线(5)和返回管线(6)中,从而防止水从蒸汽鼓(4)流入流化床 反应堆(1)。

    METHOD FOR TREATING RESIDUES FROM THE PRODUCTION OF ISOCYANATES
    3.
    发明申请
    METHOD FOR TREATING RESIDUES FROM THE PRODUCTION OF ISOCYANATES 失效
    从生产异氰酸酯处理残留物的方法

    公开(公告)号:US20110021836A1

    公开(公告)日:2011-01-27

    申请号:US12936080

    申请日:2009-04-09

    IPC分类号: C07C211/49

    摘要: The invention relates to a process for the work-up of residues from the production of isocyanates, which comprises the steps: a) hydrolysis of the residues by means of water, b) introduction of the reaction product from step a) into a mixer having a heat transfer surface, c) separation of amine and water from the output from step b), d) separation of water and amine.

    摘要翻译: 本发明涉及一种用于处理异氰酸酯生产残留物的方法,其包括以下步骤:a)通过水水解残留物,b)将来自步骤a)的反应产物引入具有 传热表面,c)从步骤b)的输出分离胺和水,d)水和胺的分离。

    Process for recovering ruthenium from used ruthenium oxide-comprising catalysts
    6.
    发明授权
    Process for recovering ruthenium from used ruthenium oxide-comprising catalysts 有权
    用于从使用的含氧化钌催化剂中回收钌的方法

    公开(公告)号:US08252253B2

    公开(公告)日:2012-08-28

    申请号:US13142915

    申请日:2009-12-28

    IPC分类号: C01G55/00

    摘要: The invention relates to a process for recovering ruthenium from a used ruthenium-comprising catalyst which comprises ruthenium as ruthenium oxide on a support material which is not readily soluble in mineral acid, which comprises the steps: a) the ruthenium oxide-comprising catalyst is reduced in a gas stream comprising hydrogen chloride and, if appropriate, an inert gas at a temperature of from 300 to 500° C.; b) the reduced catalyst from step a) comprising metallic ruthenium on the sparingly soluble support material is treated with hydrochloric acid in the presence of an oxygen-comprising gas, with the metallic ruthenium present on the support being dissolved as ruthenium(III) chloride and obtained as an aqueous ruthenium(III) chloride solution; c) if appropriate, the ruthenium(III) chloride solution from step b) is worked up further.

    摘要翻译: 本发明涉及一种用于从使用的含钌催化剂中回收钌的方法,该催化剂在不易溶于无机酸的载体材料上包含钌作为氧化钌,其包括以下步骤:a)将含氧化钌催化剂还原 在包含氯化氢的气流中,以及如果合适的话,在300-500℃的温度下是惰性气体。 b)在含有气体的气体存在下用盐酸处理在微溶性载体材料上的包含金属钌的步骤a)的还原催化剂,载体上存在的金属钌以氯化钌(III)的形式溶解, 作为氯化钌水溶液得到; c)如果合适,将步骤b)的氯化钌(III)溶液进一步处理。

    Process for Extracting (Chlorinated) Hydrocarbon-Free Hydrogen Chloride and Phosgene-Free (Chlorinated) Hydrocarbons from a Hydrogen Chloride Stream Containing (Chlorinated) Hydrocarbons and Phosgene
    8.
    发明申请
    Process for Extracting (Chlorinated) Hydrocarbon-Free Hydrogen Chloride and Phosgene-Free (Chlorinated) Hydrocarbons from a Hydrogen Chloride Stream Containing (Chlorinated) Hydrocarbons and Phosgene 有权
    从含有(氯化)碳氢化合物和光气的氯化氢流中提取(氯化)无碳氢化合物和无光气(氯化)烃的方法

    公开(公告)号:US20080295688A1

    公开(公告)日:2008-12-04

    申请号:US12159797

    申请日:2007-01-25

    IPC分类号: B01D53/02

    CPC分类号: C01B7/0718

    摘要: Process for recovering (chloro)hydrocarbon-free hydrogen chloride and phosgene-free (chloro)hydrocarbons from a hydrogen chloride stream comprising (chloro)hydrocarbons and phosgene, which comprises i) in a first step, connecting a first adsorber and a second adsorber in series and passing the fresh hydrogen chloride stream comprising phosgene and (chloro)hydrocarbons firstly through the first adsorber and subsequently through the second adsorber until essentially no more (chloro)hydrocarbon is adsorbed by the first adsorber, ii) in a second step, passing the fresh hydrogen chloride stream through the second adsorber while the first adsorber is regenerated, with essentially phosgene-free (chloro)hydrocarbon being obtained in the regeneration, iii) in a third step, passing the fresh hydrogen chloride steam firstly through the second adsorber and subsequently through the regenerated first adsorber until essentially no more (chloro)hydrocarbon is adsorbed by the second adsorber, iv) in a fourth step, passing the fresh hydrogen chloride stream through the first adsorber while the second adsorber is regenerated, with essentially phosgene-free (chloro)hydrocarbon being obtained in the regeneration, with the steps i) to iv) being able to be carried out one or more times in succession.

    摘要翻译: 从含有(氯)烃和光气的氯化氢流中回收(氯)无烃氯化氢和无光气(氯)烃的方法,其包括i)在第一步骤中,将第一吸附剂和第二吸附剂连接在 串联并通过包含光气和(氯)烃的新鲜氯化氢料流首先通过第一吸附器并随后通过第二吸附器,直到基本上不再有(氯)烃被第一吸附器吸附,ii)在第二步中, 新鲜的氯化氢流通过第二吸附器,同时第一吸附器被再生,在再生中获得基本上无光气(氯)烃; iii)在第三步骤中,将新鲜的氯化氢蒸汽首先通过第二吸附器,随后 通过再生的第一吸附器直到基本上不再有(氯)烃被第二吸附器吸附,iv) 第四步,使新鲜的氯化氢流通过第一吸附器,同时再生第二吸附器,在再生中获得基本上无光气的(氯)烃,步骤i)至iv)能够进行一次 或更多次。

    Method for the Recovery of Ruthenium From Used Ruthenium Oxide-Containing Catalysts
    9.
    发明申请
    Method for the Recovery of Ruthenium From Used Ruthenium Oxide-Containing Catalysts 有权
    从使用的含氧化钌催化剂中回收钌的方法

    公开(公告)号:US20080293836A1

    公开(公告)日:2008-11-27

    申请号:US12158085

    申请日:2006-12-21

    IPC分类号: C07C27/00

    摘要: The invention relates to a process for recovering ruthenium from a used ruthenium-comprising catalyst which comprises ruthenium as ruthenium oxide on a support material which is sparingly soluble in mineral acid, which comprises the steps: a) the catalyst comprising ruthenium oxide is treated in a stream of hydrogen, with ruthenium oxide present on the support being reduced to metallic ruthenium; b) the reduced catalyst from step a) comprising metallic ruthenium on the support material is treated with hydrochloric acid in the presence of an oxygen-comprising gas, with the metallic ruthenium present on the support being dissolved as ruthenium(III) chloride and being obtained as ruthenium(III) chloride solution; c) if appropriate, the ruthenium(III) chloride solution from step b) is worked up further.

    摘要翻译: 本发明涉及一种用于从使用的含钌催化剂中回收钌的方法,其中将钌作为氧化钌在微溶于无机酸的载体材料上包括以下步骤:a)将包含氧化钌的催化剂在 存在于载体上的氧化钌还原成金属钌; b)在载体材料上包含金属钌的步骤a)的还原催化剂在含氧气体存在下用盐酸处理,载体上存在的金属钌以氯化钌(III)的形式溶解并得到 作为氯化钌(III)溶液; c)如果合适,将步骤b)的氯化钌(III)溶液进一步处理。