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1. 发明公开

EP3239098A1 METHOD FOR CATALYTICALLY OXIDIZING HYDROGEN CHLORIDE TO PREPARE CHLORINE GAS 有权转让
标题翻译：催化氯化氢制备氯气的方法
公开(公告)号：EP3239098A1
公开(公告)日：2017-11-01
申请号：EP15871599.5
申请日：2015-05-21
申请人： Shanghai Fanglun New Material Technology Co. Ltd.
发明人： WANG, Nongyue , QU, Xiongwei , LI, Guohua , ZHAO, Quanzhong , SHAO, Jianming , WEN, Guoqiang
IPC分类号： C01B7/04
CPC分类号： C01B7/04 , B01J8/04 , B01J8/26 , B01J20/08 , B01J20/165 , B01J23/8946 , B01J2208/027 , C01B7/0743
摘要： Disclosed is a method for preparing chlorine gas through catalytic oxidation of hydrogen chloride, and more particularly a method for preparing chlorine gas by carrying out one-time hydrogen chloride feeding and multi-stage oxygen feeding and/or one-time oxygen feeding and multi-stage hydrogen chloride feeding, returning a product gas stream without separation thereof, and optionally carrying out heat insulation means. According to the present invention, an excessive reaction heat concentration is prevented, therefore, the method of the present invention is a chlorine gas recovery method implemented through the Deacon catalytic oxidation of hydrogen chloride that can be industrialized.
摘要翻译：本发明公开了一种通过氯化氢催化氧化制备氯气的方法，更具体地说是一种通过一次性氯化氢进料和多级氧气进料和/或一次氧气进料和多级进料制备氯气的方法，氯化氢供入，将产物气流返回而不分离，并且可选地执行绝热装置。根据本发明，防止了过量的反应热浓度，因此，本发明的方法是通过Deacon催化氧化可以工业化的氯化氢实施的氯气回收方法。

2. 发明授权

EP1993951B1 SEPARATION OF LIGHT GASES FROM BROMINE 有权
标题翻译：分离BROM的轻质气体
公开(公告)号：EP1993951B1
公开(公告)日：2014-07-30
申请号：EP07763277.6
申请日：2007-02-05
申请人： GRT, Inc.
发明人： GADEWAR, Sagar B. , STOIMENOV, Peter K. , GROSSO, Philip , MCFARLAND, Eric W. , BREED, Ashley W. , WEISS, Michael J. , WYRSTA, Michael D.
IPC分类号： C01B7/09 , C01B7/07 , B01D3/10 , C01B21/04 , B01D53/68 , B01D1/16 , B01D53/75
CPC分类号： B01D3/10 , B01D1/16 , B01D53/685 , B01D53/75 , B01D2251/60 , B01D2257/2022 , B01D2257/2025 , C01B7/0743 , C01B7/096 , C01B21/0433 , C01B21/045 , C01B2210/0009 , C01B2210/0015

3. 发明公开

EP2617678A4 METHOD AND SYSTEM FOR PREPARING HIGH-PURITY HYDROGEN CHLORIDE 有权
标题翻译： VERFAHREN UND SYSTEM ZUR HERSTELLUNG VON HOCHREINEM CHLORWASSERSTOFF
公开(公告)号：EP2617678A4
公开(公告)日：2014-03-05
申请号：EP12830913
申请日：2012-03-09
申请人： HONG IN CHEMICAL CO LTD
发明人： LEE JAE KUN , LEE BUM YONG
IPC分类号： C01B7/07 , B01D3/14 , B01D15/08 , B01D53/26 , C01B7/01 , C07B63/00
CPC分类号： C01B7/012 , B01D53/261 , C01B7/0712 , C01B7/0743
摘要： The present invention provides a method for producing high-purity hydrogen chloride, comprising the steps of: purifying each of crude hydrogen and crude chlorine as raw materials to a purity of 99.999% or higher; reacting an excessive molar amount of the purified hydrogen with the purified chlorine at a temperature ranging from 1,200 °C to 1,400 °C to synthesize hydrogen chloride; converting the hydrogen chloride to a liquid state by compression; and purifying the hydrogen chloride and separating unreacted hydrogen by fractional distillation. The invention also provides a system for carrying out the method. According to the method and system, an environmentally friendly production process can be provided, which can easily produce a large amount of hydrogen chloride having a purity of 3 N (99.9%)-6 N (99.9999%) in a cost-effective manner and enables energy consumption to be significantly reduced.
摘要翻译：本发明提供高纯度氯化氢的制造方法，其特征在于，以粗纯氢和粗氯为原料纯化纯度为99.999％以上的步骤。在1200℃至1400℃的温度范围内使纯化氢与纯化氯反应过量，合成氯化氢; 通过压缩将氯化氢转化为液态; 并通过分馏纯化氯化氢和分离未反应的氢。本发明还提供了一种用于执行该方法的系统。根据该方法和系统，可以提供一种环保生产方法，其可以以成本有效的方式容易地产生纯度为3N（99.9％）-6N（99.9999％）的大量氯化氢，能够显着降低能耗。

4. 发明公开

EP2617678A1 METHOD AND SYSTEM FOR PREPARING HIGH-PURITY HYDROGEN CHLORIDE 有权
标题翻译：方法和系统高纯盐酸生产
公开(公告)号：EP2617678A1
公开(公告)日：2013-07-24
申请号：EP12830913.5
申请日：2012-03-09
申请人： Hong-In Chemical Co. Ltd.
发明人： LEE, Jae Kun , LEE, Bum Yong
IPC分类号： C01B7/07 , B01D15/08 , B01D3/14 , C07B63/00
CPC分类号： C01B7/012 , B01D53/261 , C01B7/0712 , C01B7/0743
摘要： The present invention provides a method for producing high-purity hydrogen chloride, comprising the steps of: purifying each of crude hydrogen and crude chlorine as raw materials to a purity of 99.999% or higher; reacting an excessive molar amount of the purified hydrogen with the purified chlorine at a temperature ranging from 1,200 °C to 1,400 °C to synthesize hydrogen chloride; converting the hydrogen chloride to a liquid state by compression; and purifying the hydrogen chloride and separating unreacted hydrogen by fractional distillation. The invention also provides a system for carrying out the method. According to the method and system, an environmentally friendly production process can be provided, which can easily produce a large amount of hydrogen chloride having a purity of 3 N (99.9%)-6 N (99.9999%) in a cost-effective manner and enables energy consumption to be significantly reduced.

5. 发明公开

EP2374752A4 METHOD FOR MANUFACTURING CHLORINE 审中-公开
公开(公告)号：EP2374752A4
公开(公告)日：2013-03-06
申请号：EP09831855
申请日：2009-12-03
申请人： SUMITOMO CHEMICAL CO
发明人： KINOSHITA MASAHIRO , OMOTO NORIHITO
IPC分类号： C01B7/04 , C01B7/07
CPC分类号： C01B7/04 , C01B7/0743

6. 发明公开

EP2512983A1 CHLORINE GAS PRODUCTION 有权转让
标题翻译： CHLORGAS生产
公开(公告)号：EP2512983A1
公开(公告)日：2012-10-24
申请号：EP10793348.3
申请日：2010-12-07
申请人： Dow Global Technologies LLC
发明人： HIEMENZ, James, J.
IPC分类号： C01B7/075 , C01B7/07
CPC分类号： C01B7/0743 , Y02P20/129
摘要： Embodiments of the present disclosure include a process for the production of chlorine gas. For the various embodiments, the process includes compressing a gas mixture of vaporized liquid chlorine ( 104 ) and a feed gas containing chlorine ( 102 ) to form a compressed gas. Chlorine in the compressed gas is condensed into liquid chlorine ( 120 ). A first portion of the liquid chlorine is vaporized to provide a heat of condensation to condense chlorine from the compressed gas into liquid chlorine. A second portion of the liquid chlorine ( 126 ) is vaporized to provide both the vaporized liquid chlorine for the gas mixture and a heat of condensation to cool a tail gas ( 122 ) from the process. A chlorine gas product ( 114 ) from the vaporized first portion of the liquid chlorine is also produced.

7. 发明公开

EP2027064A1 VERFAHREN ZUR HERSTELLUNG VON CHLOR AUS CHLORWASSERSTOFF UND SAUERSTOFF 审中-公开
公开(公告)号：EP2027064A1
公开(公告)日：2009-02-25
申请号：EP07725513.1
申请日：2007-05-21
申请人： Bayer MaterialScience AG
发明人： WEBER, Rainer , BULAN, Andreas , HAAS, Michel , WARSITZ, Rafael , WERNER, Knud
IPC分类号： C01B7/04
CPC分类号： B01D53/22 , B01D53/1456 , B01D2257/2045 , B01D2257/2064 , C01B7/04 , C01B7/0743 , Y02P20/154
摘要： The invention relates to a method for producing chlorine by a) the thermal reaction of hydrogen chloride with oxygen using catalysts and/or by the non-thermally activated reaction of hydrogen chloride with oxygen, in which b) the gaseous mixture produced during the reaction a), consisting at least of the target products chlorine and water, non-converted hydrogen chloride and oxygen, additional minor constituents such as carbon dioxide and nitrogen and optionally phosgene, is cooled to condense hydrochloric acid, c) the liquid hydrochloric acid thus produced is isolated from the gaseous mixture, and in which a gas with a maximum oxygen content of 99 vol. % is used during said reaction a). In a step d) chlorine is isolated from the gas mixture produced in step c) by the gas permeation of oxygen, carbon dioxide and nitrogen and optionally also of other minor constituents.
摘要翻译：本发明涉及一种通过以下方法生产氯的方法：a）使用催化剂和/或通过氯化氢与氧的非热活化反应氯化氢与氧的热反应，其中b）反应过程中产生的气体混合物a ），其至少由目标产物氯和水，未转化的氯化氢和氧气，另外的次要组分如二氧化碳和氮气以及任选的光气组成，冷却以浓缩盐酸，c）由此产生的液体盐酸是从气体混合物中分离出来，并且其中最大氧含量为99体积％在所述反应a）期间使用％。在步骤d）中，通过氧气，二氧化碳和氮气以及任选地还有其他次要组分的气体渗透，从步骤c）中产生的气体混合物中分离出氯气。

8. 发明公开

EP0458990A1 METHOD OF CONCENTRATING CHLORINE GAS 有权转让
标题翻译： VERFAHREN ZUM AUFKONZENTRIEREN VON CHLORGAS。
公开(公告)号：EP0458990A1
公开(公告)日：1991-12-04
申请号：EP91901889.5
申请日：1990-12-14
申请人： MITSUI TOATSU CHEMICALS, Inc.
发明人： ITOH, Hiroyuki , KONO, Yoshitsugu , TAKENAKA, Shinji , YOSHIKAWA, Yukihiro , KIKUCHI, Isao , HIRAYAMA, Teruo
IPC分类号： C01B7/07 , B01D53/04 , C01B7/01
CPC分类号： B01D53/02 , B01D53/047 , B01D2253/102 , B01D2253/108 , B01D2256/12 , B01D2256/22 , B01D2257/2025 , B01D2257/504 , B01D2259/403 , C01B7/01 , C01B7/0743 , Y02C10/08 , Y02P20/152
摘要： A method of concentrating chlorine gas by introducing chlorine-containing gas into an adsorbent to cause adsorption of chlorine and reducing the pressure of the system to obtain a discharge gas containing a higher concentration of chlorine, wherein zeolite, porous acidic non-zeolitic oxide or active carbon is preferably used as the adsorbent.
摘要翻译：通过将稀氯气吸附到吸附剂上并将其作为较高的浓氯气排出来浓缩氯气。在方法（i）中，将气体引入填充有吸附剂（1）的吸附塔。（ii）系统的压力降低，气体排出。解吸气体的氯浓度较高。在该方法中，可以在第二步（ii）中自动回收吸附剂。吸附剂（I）是优选的。沸石，非沸石多孔酸性氧化物或活性炭。活性炭是分子过滤碳。

9. 发明公开

EP0329385A2 Industrial process for the separation and recovery of chlorine 有权转让
标题翻译：用于分离和氯的恢复的工业过程。
公开(公告)号：EP0329385A2
公开(公告)日：1989-08-23
申请号：EP89301394.6
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 , F25J3/08
CPC分类号： B01D53/68 , C01B7/0743 , Y10S62/921
摘要： A gaseous mixture (531) containing chlorine, carbon dioxide and non-condensable gas is compressed (501) and cooled (502) to separate it (504) into a residual gas formed principally of a major portion of the non-condensable gas and a condensate formed primarily of chlorine. The condensate is fed to a stripping column (505) to desorb carbon dioxide and a minor portion of the non-condensable gas dissolved in the condensate. The stripped gas formed primarily of chlorine and carbon dioxide may be treated further. Namely, the stripped gas is mixed with the residual gas. At least a portion of the mixed gas is fed into an absorption column (512), whereby a major portion of remaining chlorine is absorbed to lower the chlorine content. Removal of chlorine from such a gaseous mixture or an off-gas from the above process can be achieved by washing it (525) with an aqueous solution or suspension containing an alkali metal sulfite and/or an alkaline earth metal sulfite while controlling the pH of the solution or suspension within a range of 1.9-6.3.

10. 发明公开

EP0233773A1 Production of chlorine 失效转让
标题翻译：生产氯气。
公开(公告)号：EP0233773A1
公开(公告)日：1987-08-26
申请号：EP87301334.6
申请日：1987-02-17
申请人： MITSUI TOATSU CHEMICALS, Inc.
发明人： Itoh, Hiroyuki , Kono, Yoshitsugu , Ajioka, Masanobu , Takenaka, Shinji , Kataita, Masafumi
IPC分类号： C01B7/04 , C01B7/07
CPC分类号： C01B7/04 , C01B7/0743
摘要： Chlorine is produced by oxidizing byproduced hydrogen chloride. An offgas containing hydrogen chloride as a byproduct is reacted (6) with oxygen at 300-500°C in the presence of a catalyst which contains chromic oxide (Cr₂O₃) as a principal component. The resulting gas is cooled rapidly and then washed (8) with water to recover vaporized chromium. The hydrogen chloride is then absorbed in water (9) to recover it as an aqueous hydrochloric acid solution. The still remaining portion of the resultant gas is washed with sulfuric acid (2l) to remove water from the same, followed by compression (28) and cooling (30). The resulting liquefied chlorine is separated (32). The still remaining gas composed principally of oxygen is thereafter returned to the oxidation step.

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