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1. 发明公开

EP2170496A1 VERFAHREN ZUR HERSTELLUNG VON CHLOR DURCH GASPHASENOXIDATION 审中-公开
标题翻译：用于生产氯BY气相氧化
公开(公告)号：EP2170496A1
公开(公告)日：2010-04-07
申请号：EP08784581.4
申请日：2008-07-01
申请人： Bayer Technology Services GmbH
发明人： SCHELLEN, Ralph , MLECZKO, Leslaw , SCHUBERT, Stephan , SCHLÜTER, Oliver, Felix, Karl , WOLF, Aurel
IPC分类号： B01J8/04 , C01B7/04
CPC分类号： B01J8/0496 , B01J8/0438 , B01J8/0453 , B01J8/048 , B01J19/02 , B01J23/12 , B01J2208/00212 , B01J2208/00548 , B01J2208/00557 , B01J2208/00628 , B01J2208/025 , B01J2219/0236 , B01J2219/0277 , B01J2219/0286 , B01J2219/029 , C01B7/04 , F28D9/00 , Y02P20/228
摘要： The invention relates to a method for producing chlorine by catalytic gas phase oxidation of hydrogen chloride with oxygen, wherein the process gas mixture is reacted on catalyst beds under adiabatic conditions in a reactor in at least two separate reaction zones and the process gas mixture exiting at least one reaction zone is passed through a heat exchanger downstream of the reaction zone. The invention further relates to a reactor system for producing chlorine by catalytic gas phase oxidation of hydrogen chloride with oxygen, by means of the inventive method. The heat exchanger is made up of plates stacked on top of each other and connected to each other.

2. 发明公开

EP1170250A1 METHOD FOR PRODUCING CHLORINE 有权
标题翻译： VERFAHREN ZUR CHLOR-HERSTELLUNG
公开(公告)号：EP1170250A1
公开(公告)日：2002-01-09
申请号：EP00900806.1
申请日：2000-01-19
申请人： SUMITOMO CHEMICAL COMPANY LIMITED
发明人： IWANAGA, Kiyoshi , SUZUTA, Tetsuya , MORI, Yasuhiko , YOSHII, Masayuki
IPC分类号： C01B7/04 , B01J23/46
CPC分类号： C01B7/04 , Y02P20/228
摘要： A process for producing chlorine comprising the step of oxidizing hydrogen chloride in a gas containing hydrogen chloride with a gas containing oxygen in the presence of a catalyst, wherein the oxidation of hydrogen chloride is carried out in at least two reaction zones each comprising a catalyst-packed layer, which are arranged in series, and a temperature in at least one of said reaction zones is controlled with a heat exchange system. According to this process, the stable activity of the catalyst is maintained and chlorine can be stably obtained at a high yield since the excessive hot spot in the catalyst-packed layer is suppressed and the catalyst-packed layer can be effectively used.
摘要翻译：一种生产氯的方法，包括在催化剂存在下，用含有氧的气体在含有氯化氢的气体中氧化氯化氢的步骤，其中氯化氢的氧化在至少两个反应区进行，每个反应区包含催化剂 - 填充层，其串联布置，并且至少一个所述反应区域中的温度由热交换系统控制。根据该方法，由于催化剂填充层中的过度热点被抑制并且可以有效地使用催化剂填充层，所以保持了催化剂的稳定活性，并以高产率稳定地获得氯。

3. 发明公开

EP0251731A2 Production of chlorine 有权转让
标题翻译： Verfahren zur Herstellung von Chlor。
公开(公告)号：EP0251731A2
公开(公告)日：1988-01-07
申请号：EP87305711.1
申请日：1987-06-26
申请人： MITSUI TOATSU CHEMICALS, Inc.
发明人： Itoh, Hiroyuki , Kono, Yoshitsugu , Ajioka, Masanobu , Takenaka, Shinji , Kataika, Masafumi
IPC分类号： C01B7/04 , B01J8/24
CPC分类号： B01J23/26 , C01B7/04 , Y02P20/228
摘要： In a fluidized-bed reactor having a specific equivalent diameter and made of a material with a particular iron content, hydrogen chloride and oxygen are reacted in particular gas volumes and at specific molar ratio, superficial velocity, temperature and pressure in the presence of a catalyst composed principally of a chromium oxide and having a specific particle size distribution. The catalyst is present in a specific amount in terms of catalyst layer height at rest. The catalyst can retain its high activity.
摘要翻译：在具有特定等效直径并由具有特定铁含量的材料制成的流化床反应器中，氯化氢和氧气在特定的气体体积下以特定摩尔比在表面速度，温度和压力下在催化剂存在下反应主要由氧化铬组成并具有特定的粒度分布。在催化剂层的静置高度方面，催化剂以特定的量存在。催化剂可以保持其高活性。

4. 发明公开

EP2949622A1 Verfahren zur Verarbeitung von Chlorwasserstoff aus der Isocyanatherstellung 有权转让
公开(公告)号：EP2949622A1
公开(公告)日：2015-12-02
申请号：EP15169100.3
申请日：2015-05-26
申请人： Covestro Deutschland AG
发明人： Weber, Ralph , Ehrig, Martin , Leonhäuser, Johannes , Weißenberg, Dirk
IPC分类号： C01B7/04 , C01B7/07
CPC分类号： B01J19/24 , B01D47/14 , B01D53/1406 , B01D53/1431 , B01D53/1456 , B01D53/1493 , B01D2252/103 , B01J2219/24 , C01B7/04 , C01B7/0706 , C01B7/0737 , C01B7/0743 , Y02P20/228
摘要： Ein Verfahren zur Verarbeitung von Chlorwasserstoff aus der Isocyanatherstellung umfasst die Schritte: a) Bereitstellen von Chlorwasserstoff; b) Reinigen des bereitgestellten Chlorwasserstoffs sowie weiterhin Schritt c) oder Schritt d):
c) Kontaktieren des gereinigten Chlorwasserstoffs mit Wasser und/oder mit hinsichtlich der Aufnahme von Chlorwasserstoff nicht gesättigter Salzsäure
d) Weiterverarbeitung des gereinigten Chlorwasserstoffs zu Chlor durch partielle Oxidation
Der in Schritt a) bereitgestellte Chlorwasserstoff enthält organische und/oder stickstoffhaltige Verunreinigungen und in Schritt b) erfolgt die Reinigung derart, dass Chlorwasserstoff wenigstens in einem ersten Gaswäscher (10) mit hinsichtlich der Aufnahme von Chlorwasserstoff zu ≥ 90% gesättigter Salzsäure kontaktiert wird und diese Salzsäure zumindest teilweise durch den ersten Gaswäscher (10) zirkuliert wird.
摘要翻译：从异氰酸酯制备方法处理氯化氢的方法包括以下步骤：a）提供氯化氢; b）纯化提供的氯化氢; 以及步骤c）或步骤d）：c）使纯化的氯化氢与水和/或与氯化氢吸收不饱和的盐酸接触d）通过部分方法将纯化的氯化氢进一步加工成氯氧化步骤a）中提供的氯化氢含有有机和/或含氮杂质，并且在步骤b）中，通过使氯化氢与饱和至相对于吸收的90％程度的盐酸接触来进行纯化至少在第一气体洗涤器（10）中并使该盐酸至少部分地通过第一气体洗涤器（10）循环。

5. 发明公开

EP2771108A1 KATALYSATOR UND VERFAHREN ZUR HERSTELLUNG VON CHLOR DURCH GASPHASENOXIDATION 审中-公开
标题翻译：催化剂和工艺来生产氯BY气相氧化
公开(公告)号：EP2771108A1
公开(公告)日：2014-09-03
申请号：EP12775024.8
申请日：2012-10-19
申请人： Bayer Intellectual Property GmbH
发明人： SCHMIDT, Timm , MOSER, Maximilian , MÜLLER, Walther
IPC分类号： B01J21/06 , B01J23/10 , B01J37/02 , C01B7/04
CPC分类号： B01J23/10 , B01J21/066 , B01J23/462 , B01J23/63 , B01J35/0006 , B01J35/0026 , B01J35/023 , B01J35/1014 , B01J35/1019 , B01J35/1038 , B01J35/1061 , B01J35/109 , B01J37/0018 , B01J37/0036 , B01J37/0201 , B01J37/08 , B01J37/24 , C01B7/04 , Y02P20/228
摘要： The invention relates to known catalysts containing cerium or other catalytically active components for producing chlorine by means of a catalytic gas-phase oxidation of hydrogen chloride with oxygen. A catalyst material for producing chlorine by means of a catalytic gas-phase oxidation of hydrogen chloride with oxygen is described, wherein the catalyst comprises at least oxide compounds of the cerium as active components and zirconium dioxide as supporting components, and the catalyst is characterized by a particularly high space-time yield measured in kg
C12 /L
REAKTOR ·h with respect to the reactor volume.

6. 发明授权

EP1170250B1 METHOD FOR PRODUCING CHLORINE 有权
标题翻译：用于生产氯
公开(公告)号：EP1170250B1
公开(公告)日：2008-01-09
申请号：EP00900806.1
申请日：2000-01-19
申请人： Sumitomo Chemical Company, Limited
发明人： IWANAGA, Kiyoshi , SUZUTA, Tetsuya , MORI, Yasuhiko , YOSHII, Masayuki
IPC分类号： C01B7/04 , B01J23/46
CPC分类号： C01B7/04 , Y02P20/228
摘要： In a method for producing chlorine comprising oxidizing hydrogen chloride present in a gas containing the hydrogen chloride using a gas containing oxygen in the presence of a catalyst, an improvement which comprises conducting the oxidation of the hydrogen chloride in a reaction region comprising at least two catalyst-packed layers connected in series and carrying out the temperature control of at least one reaction region using a heat exchange system is disclosed. This method enables the inhibition of formation of excess hot spots and effective utilization of the catalyst-packed layers, which results in maintaining stable activity of the catalyst and in the production of chlorine in high yield with good stability.

7. 发明公开

EP1656322A1 VERFAHREN ZUR HERSTELLUNG VON CHLOR 有权
标题翻译：用于生产氯
公开(公告)号：EP1656322A1
公开(公告)日：2006-05-17
申请号：EP04763900.0
申请日：2004-08-06
申请人： BASF Aktiengesellschaft
发明人： WALSDORFF, Christian , FIENE, Martin , SESING, Martin , METELKINA, Olga , SEIDEMANN, Lothar , STROEFER, Eckhard , HARTH, Klaus
IPC分类号： C01B7/04
CPC分类号： C01B7/04 , Y02P20/228
摘要： The invention relates to a method for producing chlorine by means of catalytic gas phase oxidation. Said method comprises the following steps: a) a feed gas stream I containing hydrogen chloride and a feed gas stream II containing oxygen are provided; b) feed gas stream I, feed gas stream II, an optional back flow Ia containing hydrogen chloride, and an optional back flow IIa containing oxygen are fed into a first oxidation zone and are contacted with a first oxidation catalyst in a first oxidation stage in which a first partial quantity of the hydrogen chloride oxidizes into chlorine while a gas stream III is obtained that contains chlorine, unreacted oxygen, unreacted hydrogen chloride, and steam; c) gas stream III is fed into a second oxidation zone and is contacted with at least one additional oxidation catalyst in a second oxidation stage in which a second partial quantity of the hydrogen chloride oxidizes into chlorine while a product gas stream IV is obtained that contains chlorine, unreacted oxygen, unreacted hydrogen chloride, and steam; d) chlorine, optionally back flow Ia, and optionally back flow IIa are recovered from product gas stream IV. The inventive method is characterized in that the first oxidation catalyst used in the first oxidation zone is provided in a fluidized bed while the additional oxidation catalyst/s used in the second oxidation zone is/are provided in a fixed bed.

8. 发明授权

EP2736842B1 PROCESS OF PRODUCING CHLORINE GAS BY CATALYTIC OXIDATION OF HYDROGEN CHLORIDE 有权转让
标题翻译：氯化氢催化氧化生产氯气的工艺
公开(公告)号：EP2736842B1
公开(公告)日：2017-11-29
申请号：EP12750308.4
申请日：2012-05-26
申请人： Wanhua Chemical Group Co., Ltd. , Wanhua Chemical (Ningbo) Co., Ltd.
发明人： DING, Jiansheng , LUO, Wuxi , CHEN, Bin , ZHANG, Kunpeng , HUA, Weiqi
IPC分类号： C01B7/04 , C01B7/07
CPC分类号： C01B7/04 , C01B7/0706 , C01B7/0737 , Y02P20/228

9. 发明授权

EP1251100B1 METHOD FOR PRODUCING CHLORINE 有权
标题翻译：用于生产氯
公开(公告)号：EP1251100B1
公开(公告)日：2016-06-01
申请号：EP00900807.9
申请日：2000-01-19
申请人： Sumitomo Chemical Company, Limited
发明人： IWANAGA, Kiyoshi , YOSHII, Masayuki , SUZUTA, Tetsuya
IPC分类号： C01B7/04
CPC分类号： C01B7/04 , Y02P20/228

10. 发明公开

EP2327660A4 PROCESS FOR PRODUCING CHLORINE 有权
标题翻译：用于生产氯
公开(公告)号：EP2327660A4
公开(公告)日：2014-06-25
申请号：EP09810101
申请日：2009-08-28
申请人： SUMITOMO CHEMICAL CO
发明人： SEKI KOHEI
IPC分类号： C01B7/04 , B01J23/46 , B01J35/10
CPC分类号： B01J23/462 , B01J35/10 , C01B7/04 , Y02P20/228
摘要： There is disclosed a process for producing chlorine by feeding hydrogen chloride and oxygen into catalyst beds which are formed in the reaction tubes of a fixed-bed multitubular reactor and which contain catalysts for use in oxidation of hydrochloric acid, and this process is characterized in that the catalyst beds in one reaction zone in the fixed-bed multitubular reactor are catalyst beds formed by packing catalysts of a plurality of production lots; and in that the catalysts of the plurality of production lots satisfy the following condition (I): Condition (I): a value of A/B is smaller than 1.20 (with the proviso that A and B are values of three significant figures, having a relationship of A ‰¥ B), wherein the pore volume of a catalyst of one production lot optionally selected from the plurality of production lots is A [ml/g], and the pore volume of another one production lot is B [ml/g].

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