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32 条记录 (耗时 0.014 秒)

    Industrial process for the separation and recovery of chlorine
    4.
    发明公开
    Industrial process for the separation and recovery of chlorine 失效
    氯分离和回收的工业过程

    公开(公告)号：EP0594558A2

    公开(公告)日：1994-04-27

    申请号：EP94100177.8

    申请日：1989-02-15

    申请人： MITSUI TOATSU CHEMICALS, Inc.

    发明人： Itoh, Hiroyuki ,  Kono, Yoshitsugu ,  Kikuchi, Isao ,  Takenaka, Shinji ,  Ajioka, Masanobu ,  Kudoh, Mitsuo

    IPC分类号： C01B7/07

    CPC分类号： B01D53/68 ,  C01B7/0743 ,  Y10S62/921

    摘要： A process for the removal of chlorine from a gaseous mixture comprising chlorine gas and carbon dioxide gas, which comprises feeding an aqueous solution or suspension containing an alkali metal sulfite and/or an alkaline earth metal sulfite and optionally an alkali metal hydroxide and/or an alkaline earth metal hydroxide in a proportion not greater than twice in molar ratio the alkali metal sulfite and/or alkaline earth metal sulfite, and washing the gaseous mixture with the solution or suspension while controlling the pH of the solution or suspension within a range of 1.9-6.3, whereby chlorine is solely removed from the gaseous mixture.

    摘要翻译： 一种从包含氯气和二氧化碳气体的气态混合物中除去氯的方法，该方法包括将含有碱金属亚硫酸盐和/或碱土金属亚硫酸盐和任选碱金属氢氧化物和/或碱金属氢氧化物的水溶液或悬浮液 碱土金属氢氧化物，其比例不大于碱金属亚硫酸盐和/或碱土金属亚硫酸盐摩尔比的两倍，并且将该气体混合物与该溶液或悬浮液一起洗涤，同时将该溶液或悬浮液的pH控制在1.9 -6.3，由此仅从气体混合物中除去氯。

    Method and apparatus for concentrating chlorine gas
    5.
    发明公开
    Method and apparatus for concentrating chlorine gas 失效
    Verfahren und Apparat zum Konzentrieren von Chlorgas。

    公开(公告)号：EP0517427A1

    公开(公告)日：1992-12-09

    申请号：EP92304834.2

    申请日：1992-05-28

    申请人： MITSUI TOATSU CHEMICALS, Inc.

    发明人： Kono, Yoshitsugu ,  Ura, Masaaki ,  Itoh, Hiroyuki ,  Tsuruda, Satoshi

    IPC分类号： C01B7/07

    CPC分类号： C01B7/0743 ,  B01D53/04 ,  B01D53/0423 ,  B01D53/047 ,  B01D2253/102 ,  B01D2253/108 ,  B01D2256/26 ,  B01D2257/104 ,  B01D2257/2025 ,  B01D2259/40009 ,  B01D2259/40062 ,  B01D2259/402

    摘要： A method and an apparatus for concentrating/purifying a chlorine gas are here disclosed in which a pressure swing adsorption method for alternately repeating an adsorbing operation and a desorbing operation is applied to the concentration/purification of the chlorine gas and novel improvements are added thereto. According to the present invention, one or more adsorbing towers packed with an adsorbent for adsorbing the chlorine gas are used to obtain a high-purity concentrated/purified chlorine gas and a treated exhaust gas scarcely containing the chlorine gas from the chlorine gas containing impurities.

    摘要翻译： 这里公开了一种用于浓缩/纯化氯气的方法和装置，其中将用于交替重复吸附操作和解吸操作的变压吸附方法应用于氯气的浓缩/净化，并且向其中添加了新的改进。 根据本发明，使用填充有用于吸附氯气的吸附剂的一个或多个吸附塔，以从含有杂质的氯气中获得高纯度浓缩/纯化氯气和几乎不含氯气的处理废气。

    Process for preparing high-purity aniline
    7.
    发明公开
    Process for preparing high-purity aniline 失效
    制备高纯度苯胺的方法

    公开(公告)号：EP0476404A3

    公开(公告)日：1992-06-10

    申请号：EP91114715.5

    申请日：1991-09-01

    申请人： MITSUI TOATSU CHEMICALS, Inc.

    发明人： Nagata, Teruyuki ,  Watanabe, Katsuji ,  Kono, Yoshitsugu ,  Tamaki, Akihiro, Mitsui Toatsu Kosugaya Apt. 2-302 ,  Kobayashi, Takashi

    IPC分类号： C07C209/36 ,  C07C211/46

    CPC分类号： C07C209/36

    摘要： A process for the continuous preparation of aniline by hydrogenating nitrobenzene with hydrogen is disclosed which comprises the steps of suspending, in an aniline solvent, a catalyst of palladium or palladium-platinum which is deposited on a lipophilic carbon having an oil absorbency of at least 100, and carrying out reaction at a temperature of from 150 to 250°C substantially in the absence of water while aniline and water formed in said reaction are continuously distilled off as vapor from the reaction product, and the concentration of nitrobenzene in the reaction solution is maintained at 0.01% by weight or less, wherein a zinc compound is added to the reaction system as a promotor and carbon monoxide is added to the hydrogen at a concentration of 1 - 500 ppm.

    Method for obtaining high-purity cinnamic acid
    8.
    发明公开
    Method for obtaining high-purity cinnamic acid 失效
    Verfahren zur Gewinnung von hochreinerZinntsäure。

    公开(公告)号：EP0484122A2

    公开(公告)日：1992-05-06

    申请号：EP91310005.3

    申请日：1991-10-30

    申请人： MITSUI TOATSU CHEMICALS, Inc.

    发明人： Itoh, Hiroyuki ,  Kono, Yoshitsugu ,  Taneda, Ryoichi ,  Takaki, Usaji

    IPC分类号： C07C51/487 ,  C07C51/47

    CPC分类号： C07C51/47 ,  C07C51/487 ,  C07C57/44

    摘要： There is here disclosed a method for obtaining high-purity cinnamic acid containing less metals from crude cinnamic acid containing a metallic catalyst which is a mixture prepared by the synthetic reaction of a cinnamic acid ester. A disclosed purifying means is the combination of alkali hydrolysis, active carbon adsorption, solvent extraction and precipitation with an acid.

    摘要翻译： 这里公开了一种从粗肉桂酸获得含有较少金属的高纯度肉桂酸的方法，该肉桂酸含有通过肉桂酸酯的合成反应制备的混合物的金属催化剂。 公开的纯化方法是碱水解，活性炭吸附，溶剂萃取和酸与酸的沉淀的组合。

    Process for preparing high-purity aniline
    9.
    发明公开
    Process for preparing high-purity aniline 失效
    Verfahren zur Herstellung von Anilin von hoher Reinheit。

    公开(公告)号：EP0476404A2

    公开(公告)日：1992-03-25

    申请号：EP91114715.5

    申请日：1991-09-01

    申请人： MITSUI TOATSU CHEMICALS, Inc.

    发明人： Nagata, Teruyuki ,  Watanabe, Katsuji ,  Kono, Yoshitsugu ,  Tamaki, Akihiro, Mitsui Toatsu Kosugaya Apt. 2-302 ,  Kobayashi, Takashi

    IPC分类号： C07C209/36 ,  C07C211/46

    CPC分类号： C07C209/36

    摘要： A process for the continuous preparation of aniline by hydrogenating nitrobenzene with hydrogen is disclosed which comprises the steps of suspending, in an aniline solvent, a catalyst of palladium or palladium-platinum which is deposited on a lipophilic carbon having an oil absorbency of at least 100, and carrying out reaction at a temperature of from 150 to 250°C substantially in the absence of water while aniline and water formed in said reaction are continuously distilled off as vapor from the reaction product, and the concentration of nitrobenzene in the reaction solution is maintained at 0.01% by weight or less, wherein a zinc compound is added to the reaction system as a promotor and carbon monoxide is added to the hydrogen at a concentration of 1 - 500 ppm.

    摘要翻译： 公开了通过用氢气氢化硝基苯来连续制备苯胺的方法，其包括以下步骤：在苯胺溶剂中悬浮钯或钯 - 铂的催化剂，所述催化剂沉积在吸油性至少为100的亲脂性碳上 并且在150-250℃的温度下基本上不存在水进行反应，同时在所述反应中形成的苯胺和水作为蒸气从反应产物中连续蒸馏出去，反应溶液中硝基苯的浓度为 保持在0.01重量％以下，其中将锌化合物作为起始剂加入到反应体系中，并将一氧化碳以1〜500ppm的浓度加入到氢气中。

    Process for preparing high-purity aniline
    10.
    发明公开
    Process for preparing high-purity aniline 失效
    Verfahren zur Herstellung von Anilin hoher Reinheit。

    公开(公告)号：EP0458006A1

    公开(公告)日：1991-11-27

    申请号：EP91100621.1

    申请日：1991-01-19

    申请人： MITSUI TOATSU CHEMICALS, Inc.

    发明人： Nagata, Teruyuki ,  Watanabe, Katsuji ,  Kono, Yoshitsugu ,  Tamaki, Akihiro ,  Kobayashi, Takashi

    IPC分类号： C07C209/36

    CPC分类号： C07C209/36

    摘要： A process for the continuous preparation of aniline by hydrogenating nitrobenzene is disclosed which comprises the steps of suspending, in an aniline solvent, a catalyst of palladium or palladium-platinum which is deposited on a lipophilic carbon having an oil absorbency of at least 100, adding a zinc compound and an alkali metal carbonate or a zinc compound and an alkali metal bicarbonate as promotors to the reaction system, and carrying out reaction at a temperature of from 150 to 250°C substantially in the absence of water while aniline and water formed in said reaction are continuously distilled off as vapor from the reaction product, and the concentration of nitrobenzene in the reaction solution is maintained at 0.01% by weight or less.

    摘要翻译： 公开了通过氢化硝基苯连续制备苯胺的方法，其包括以下步骤：在苯胺溶剂中悬浮沉积在吸油性至少为100的亲脂性碳上的钯或钯 - 铂催化剂，加入 锌化合物和碱金属碳酸盐或锌化合物和碱金属碳酸氢盐作为反应体系的促进剂，并且在150-250℃的温度下基本上不存在水进行反应，同时形成苯胺和水 所述反应作为蒸气从反应产物中连续蒸馏，反应溶液中硝基苯的浓度保持在0.01重量％以下。