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1. 发明授权

US4803065A Production process of chlorine 失效
标题翻译：氯的生产过程
公开(公告)号：US4803065A
公开(公告)日：1989-02-07
申请号：US64699
申请日：1987-06-22
申请人： Hiroyuki Itoh , Yoshitsugu Kono , Masanobu Ajioka , Shinji Takenaka , Masafumi Kataita
发明人： Hiroyuki Itoh , Yoshitsugu Kono , Masanobu Ajioka , Shinji Takenaka , Masafumi Kataita
IPC分类号： B01J8/24 , B01J23/26 , B01J38/30 , C01B7/04
CPC分类号： B01J23/26 , C01B7/04 , Y02P20/228
摘要： An improved process is provided for the production of chlorine. 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 filled in a specific amount in terms of catalyst layer height at rest. The catalyst can retain its high activity.
摘要翻译：提供了一种用于生产氯的改进方法。在具有特定当量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的摩尔比在表面速度，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。以催化剂层的静置高度，催化剂以特定的量填充。催化剂可以保持其高活性。

2. 发明授权

US4774070A Production process of chlorine 失效
标题翻译：氯的生产过程
公开(公告)号：US4774070A
公开(公告)日：1988-09-27
申请号：US13426
申请日：1987-02-11
申请人： Hiroyuki Itoh , Yoshitsugu Kono , Masanobu Ajioka , Shinji Takenaka , Masafumi Kataita
发明人： Hiroyuki Itoh , Yoshitsugu Kono , Masanobu Ajioka , Shinji Takenaka , Masafumi Kataita
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 with oxygen at 300.degree.-500.degree. C. in the presence of a catalyst which contains chromic oxide (Cr.sub.2 O.sub.3) as a principal component. The resulting gas is cooled rapidly and then washed with water to recover vaporized chromium. The hydrogen chloride is then absorbed in water to recover it as an aqueous hydrochloric acid solution. The still remaining portion of the resultant gas is washed with sulfuric acid to remove water from the same, followed by compression and cooling. The resulting liquefied chlorine is separated. The still remaining gas composed principally of oxygen is thereafter returned to the oxidation step.
摘要翻译：通过氧化副产生的氯化氢产生氯。在含有氧化铬（Cr 2 O 3）作为主要成分的催化剂的存在下，将含有氯化氢作为副产物的废气在300-500℃下与氧气反应。将所得气体快速冷却，然后用水洗涤以回收蒸发的铬。然后将氯化氢吸收在水中，以盐酸水溶液的形式回收。所得气体的剩余部分用硫酸洗涤以从其中除去水，然后压缩和冷却。所得到的液化氯被分离。然后主要由氧气组成的剩余气体返回氧化步骤。

3. 发明授权

US5034209A Production process of chlorine 失效
标题翻译：氯的生产过程
公开(公告)号：US5034209A
公开(公告)日：1991-07-23
申请号：US508699
申请日：1990-04-13
申请人： Masanobu Ajioka , Shinji Takenaka , Hiroyuki Itoh , Masafumi Kataita , Yoshitsugu Kohno
发明人： Masanobu Ajioka , Shinji Takenaka , Hiroyuki Itoh , Masafumi Kataita , Yoshitsugu Kohno
IPC分类号： B01J33/00 , B01J8/18 , B01J23/26 , C01B7/04
CPC分类号： C01B7/04 , B01J23/26 , B01J8/18
摘要： Chlorine is produced by reacting hydrogen chloride and oxygen in the presence of a chromium oxide catalyst in a reactor whose catalyst-contacting part is lined with one of lining materials represented by the following general formula(I):M.sub.a X.sub.b (I)wherein M means boron, aluminum, silicon, titanium, zirconium or chromium, X denotes oxygen, nitrogen or carbon, a is an integer of 1-2 and b stands for an integer of 1-3 or with a mixture of at least two of the lining materials. The above process and reactor are effective in maintaining the activity of the catalyst.

4. 发明授权

US5112580A Reactor for the production of chlorine 失效
标题翻译：生产氯仿的反应器
公开(公告)号：US5112580A
公开(公告)日：1992-05-12
申请号：US525724
申请日：1990-05-21
申请人： Masanobu Ajioka , Shinji Takenaka , Hiroyuki Itoh , Masafumi Kataita , Yoshitsugu Kohno
发明人： Masanobu Ajioka , Shinji Takenaka , Hiroyuki Itoh , Masafumi Kataita , Yoshitsugu Kohno
IPC分类号： B01J33/00 , B01J8/18 , B01J23/26 , C01B7/04
CPC分类号： C01B7/04 , B01J23/26 , B01J8/18
摘要： Chlorine is produced by reacting hydrogen chloride and oxygen in the presence of a chromium oxide catalyst in a reactor whose catalyst-contacting part is lined with one of lining materials represented by the following general formula (I):M.sub.a X.sub.b (I)wherein M can be boron, aluminum, silicon, titanium, zirconium or chromium, X denotes oxygen, nitrogen or carbon, a is an integer of 1-2 and b stands for an integer of 1-3 or with a mixture of at least two of the lining materials. The above process and reactor are effective in maintaining the activity of the catalyst.

5. 发明授权

US4956169A Production process of chlorine 失效
标题翻译：氯的生产过程
公开(公告)号：US4956169A
公开(公告)日：1990-09-11
申请号：US169951
申请日：1988-03-18
申请人： Masanobu Ajioka , Shinji Takenaka , Hiroyuki Itoh , Masafumi Kataita , Yoshitsugu Kohno
发明人： Masanobu Ajioka , Shinji Takenaka , Hiroyuki Itoh , Masafumi Kataita , Yoshitsugu Kohno
IPC分类号： B01J33/00 , B01J8/18 , B01J23/26 , C01B7/04
CPC分类号： C01B7/04 , B01J23/26 , B01J8/18
摘要： Chlorine is produced by reacting hydrogen chloride and oxygen in the presence of a chromium oxide catalyst in a reactor whose catalyst-contacting part is lined with one of lining materials represented by the following general formula (I):M.sub.a X.sub.b (I)wherein M means boron, aluminum, silicon, titanium, zirconium or chromium, X denotes oxygen, nitrogen or carbon, a is an integer of 1-2 and b stands for an integer of 1-3 or with a mixture of at least two of the lining materials. The above process and reactor are effective in maintaining the activity of the catalyst.

6. 发明授权

US5112593A Production process of chlorine 失效
公开(公告)号：US5112593A
公开(公告)日：1992-05-12
申请号：US595651
申请日：1990-10-09
申请人： Hiroyuki Itoh , Yoshitsugu Kono , Isao Kikuchi , Shinji Takenaka , Masanobu Ajioka
发明人： Hiroyuki Itoh , Yoshitsugu Kono , Isao Kikuchi , Shinji Takenaka , Masanobu Ajioka
IPC分类号： B01J8/34 , C01B7/04
CPC分类号： C01B7/04 , B01J8/34 , B01J2208/00061 , B01J2208/00212 , Y10S423/16
摘要： Chlorine is produced by reacting hydrogen chloride and oxygen in the presence of a catalyst composed of a chromium oxide as a principal component. The reaction is carried out in a fluidized bed reactor equipped at vertical intervals not greater than 100 cm with a plurality of perforated horizontal plates having a perforation rate of 10-60% in a reaction zone in which the catalyst is fluidized in operation. The reaction zone is above a gas diffuser plate.

7. 发明授权

US5254323A Industrial process for the separation and recovery of chlorine 失效
标题翻译：用于分离和回收氯的工业过程
公开(公告)号：US5254323A
公开(公告)日：1993-10-19
申请号：US921606
申请日：1992-08-03
申请人： Hiroyuki Itoh , Yoshitsugu Kono , Isao Kikuchi , Shinji Takenaka , Masanobu Ajioka , Mitsuo Kudoh
发明人： Hiroyuki Itoh , Yoshitsugu Kono , Isao Kikuchi , Shinji Takenaka , Masanobu Ajioka , Mitsuo Kudoh
IPC分类号： C01B7/07 , C01B7/01 , B01D53/34
CPC分类号： C01B7/0743
摘要： A gaseous mixture containing chlorine, carbon dioxide and non-condensable gas is compressed and cooled to separate it 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 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, 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 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.
摘要翻译：将含有氯，二氧化碳和不可冷凝气体的气体混合物压缩并冷却，将其分离成主要由不可冷凝气体主要形成的残留气体和主要由氯气形成的冷凝物。将冷凝物供入汽提塔以解吸二氧化碳和少部分溶解在冷凝物中的不可冷凝气体。主要由氯和二氧化碳形成的汽提气体可以进一步处理。即，将汽提的气体与残留气体混合。将混合气体的至少一部分进料到吸收塔中，从而吸收主要部分的剩余氯以降低氯含量从上述方法从这种气体混合物或废气中除去氯可以通过用包含碱金属亚硫酸盐和/或碱土金属亚硫酸盐的水溶液或悬浮液洗涤，同时将溶液或悬浮液的pH控制在1.9-6.3的范围内。

8. 发明授权

US5000006A Industrial process for the separation and recovery of chlorine 失效
标题翻译：用于分离和回收氯的工业过程
公开(公告)号：US5000006A
公开(公告)日：1991-03-19
申请号：US310929
申请日：1989-02-16
申请人： Hiroyuki Itoh , Yoshitsugu Kono , Isao Kikuchi , Shinji Takenaka , Masanobu Ajioka , Mitsuo Kudoh
发明人： Hiroyuki Itoh , Yoshitsugu Kono , Isao Kikuchi , Shinji Takenaka , Masanobu Ajioka , Mitsuo Kudoh
IPC分类号： C01B7/01 , B01D53/68 , C01B7/07
CPC分类号： B01D53/68 , C01B7/0743 , Y10S62/921
摘要： A gaseous mixture containing chlorine, carbon dioxide and non-condensable gas is compressed and cooled to separate it 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 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, 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 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.

9. 发明授权

US5302187A Concentration process of gaseous chlorine 失效
标题翻译：气态氯的浓缩过程
公开(公告)号：US5302187A
公开(公告)日：1994-04-12
申请号：US975158
申请日：1992-11-12
申请人： Hiroyuki Itoh , Yoshitsugu Kono , Shinji Takenaka , Yukihiro Yoshikawa , Isao Kikuchi , Teruo Hirayama
发明人： Hiroyuki Itoh , Yoshitsugu Kono , Shinji Takenaka , Yukihiro Yoshikawa , Isao Kikuchi , Teruo Hirayama
IPC分类号： B01D53/04 , B01D53/047 , C01B7/01 , C01B7/07
CPC分类号： B01D53/02 , B01D53/047 , C01B7/01 , C01B7/0743 , B01D2253/102 , B01D2253/108 , B01D2256/12 , B01D2256/22 , B01D2257/2025 , B01D2257/504 , B01D2259/403 , Y02C10/08 , Y02P20/152
摘要： Disclosed herein is a process comprising introducing a chlorine-containing gas through an adsorbent to adsorb chlorine and thereafter reducing the pressure of the adsorbent to a pressure lower than that during the introduction, thereby obtaining an effluent gas with a higher chlorine concentration than that of the introduced gas. Among preferably usable adsorbents are zeolite, non-zeolite-type porous acidic oxides and active carbon.
摘要翻译： PCT No.PCT / JP90 / 01632 Sec。 371日期1991年8月15日 102（e）日期1991年8月15日PCT 1990年12月14日PCT PCT。出版物WO91 / 08824 日期：1991年6月27日。这里公开了一种方法，其包括通过吸附剂引入含氯气体以吸附氯，然后将吸附剂的压力降低至低于引入期间的压力，从而获得具有氯浓度高于导入气体。优选可用的吸附剂是沸石，非沸石型多孔酸性氧化物和活性炭。

10. 发明授权

US5206430A Method for obtaining high-purity cinnamic acid 失效
标题翻译：获得高纯度酸的方法
公开(公告)号：US5206430A
公开(公告)日：1993-04-27
申请号：US782299
申请日：1991-10-24
申请人： Hiroyuki Itoh , Yoshitsugu Kono , Ryoichi Taneda , Usaji Takaki
发明人： Hiroyuki Itoh , Yoshitsugu Kono , Ryoichi Taneda , Usaji Takaki
IPC分类号： C07C51/47 , C07C51/487
CPC分类号： C07C51/47 , C07C51/487
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.

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