公开(公告)号：US4054586A

公开(公告)日：1977-10-18

申请号：US641284

申请日：1975-12-16

申请人： Yutaka Hirai ,  Katsuharu Miyata ,  Tagui Osawa

发明人： Yutaka Hirai ,  Katsuharu Miyata ,  Tagui Osawa

IPC分类号： C07C225/34 ,  C09B1/16

CPC分类号： C07C225/34

摘要： A process for preparing 1-aminoanthraquinone having high purity, which comprises either1. hydrogenating 1-nitroanthraquinone in an aqueous medium in the presence of a base using a hydrogenating catalyst, and then oxidizing the hydrogenation product, or2. hydrogenating crude 1-nitroanthraquinone containing dinitroanthraquinones as impurities or crude 1-aminoanthraquinone containing diaminoanthraquinones as impurities in an aqueous medium in the presence of a base using a hydrogenating catalyst, stopping the hydrogenation at a time when the 1-nitroanthraquinone or 1-aminoanthraquinone has been substantially reduced to 1-aminoanthrahydroquinone but the dinitroanthraquinones or diaminoanthraquinones remain substantially unreduced to diaminoanthrahydroquinones, removing water-insoluble materials from the reaction mixture, and then oxidizing the remaining water-soluble residue.

摘要翻译： 一种制备高纯度的1-氨基蒽醌的方法，其包括1.在使用氢化催化剂的碱存在下在水性介质中氢化1-硝基四氢呋喃，然后氧化氢化产物，或2.加氢原料1-硝基四氢呋喃 含有四氢喹啉酮作为防腐剂或将含有二氨基四氢呋喃的1-氨基四氢喹啉酮作为使用氢化催化剂的基质存在下的水性介质中的污染物，当1-硝基四氢呋喃或1-氨基四氢呋喃大量降低至1- 氨基四氢喹啉酮，但是四氢呋喃或二氨基四氢呋喃基本上不依赖于二氨基四氢呋喃，从反应混合物中除去水不溶物，然后氧化剩余的水溶性残留物。

公开(公告)号：US4046785A

公开(公告)日：1977-09-06

申请号：US641832

申请日：1975-12-18

申请人： Yutaka Hirai ,  Katsuharu Miyata ,  Tagui Osawa ,  Muneyasu Samecima ,  Ken Mukai ,  Koichi Yoshiura ,  Hidetoshi Mori

发明人： Yutaka Hirai ,  Katsuharu Miyata ,  Tagui Osawa ,  Muneyasu Samecima ,  Ken Mukai ,  Koichi Yoshiura ,  Hidetoshi Mori

IPC分类号： C09B1/22 ,  C07C225/34 ,  C07C227/04 ,  C07C229/74 ,  C09B1/503 ,  C09B1/54 ,  C09B1/16 ,  C09B1/36 ,  C09B1/50

CPC分类号： C07C225/34

摘要： A process for preparing aminoanthraquinones of high purity, which comprises catalytically hydrogenating nitroanthraquinones in the suspended state in an aqueous medium in the presence of a hydrogenating catalyst. In a preferred embodiment, the catalytic hydrogenation may be carried out in the presence of an organic or inorganic base, followed, if desired, by oxidizing the hydrogenation product.

摘要翻译： 一种制备高纯度氨基蒽醌的方法，其包括在氢化催化剂存在下，在水性介质中将悬浮状态的硝基蒽醌催化氢化。 在优选的实施方案中，催化氢化可以在有机或无机碱的存在下进行，然后如果需要，通过氧化氢化产物。

公开(公告)号：US4178455A

公开(公告)日：1979-12-11

申请号：US925543

申请日：1978-07-17

申请人： Yutaka Hirai ,  Katsuharu Miyata ,  Makoto Aiga ,  Seiji Hasegawa

发明人： Yutaka Hirai ,  Katsuharu Miyata ,  Makoto Aiga ,  Seiji Hasegawa

IPC分类号： C07C271/06 ,  C07C125/04

CPC分类号： C07C271/06

摘要： In a process for preparing an aromatic urethane which comprises reacting an aromatic nitro compound, an organic compound containing at least one hydroxyl group, and carbon monoxide at elevated temperature and pressure in the presence of a catalytic system composed of a catalyst consisting of a platinum metal, a platinum metal compound, and/or a platinum metal compound-containing compound and a promoter consisting of a Lewis acid and/or a Lewis acid-containing compound, an organic primary amino compound, a urea compound, a biuret compound, an allophanate compound, or a mixture thereof is added to the reaction system whereby the reaction rate is increased and the yield of the desired product is enhanced. For example, 2,4-diethylcarbamatetoluene can be prepared in quantitatively high yield by reacting 2,4-dinitrotoluene, ethanol, carbon monoxide, and a small amount of aminonitrotoluene at elevated temperature and pressure in the presence of palladium chloride and ferrous chloride-pyridine complex.

摘要翻译： 在制备芳族氨基甲酸酯的方法中，包括使芳族硝基化合物，含有至少一个羟基的有机化合物和一氧化碳在升高的温度和压力下，在由铂金属 ，铂金属化合物和/或含铂金属化合物的化合物和由路易斯酸和/或路易斯酸化合物，有机伯氨基化合物，脲化合物，缩二脲化合物，脲基甲酸酯组成的促进剂 化合物或其混合物加入到反应体系中，由此提高反应速率并提高所需产物的产率。 例如，2,4-二乙基氨基甲酸甲酯可以通过在升高的温度和压力下，在氯化钯和氯化亚铁 - 吡啶存在下，使2,4-二硝基甲苯，乙醇，一氧化碳和少量的氨基硝基甲苯反应，以定量高的产率制备 复杂。

公开(公告)号：US4170708A

公开(公告)日：1979-10-09

申请号：US664995

申请日：1976-03-08

申请人： Yutaka Hirai ,  Katsuharu Miyata ,  Seiji Hasegawa

发明人： Yutaka Hirai ,  Katsuharu Miyata ,  Seiji Hasegawa

IPC分类号： C07B61/00 ,  B01J27/00 ,  B01J27/02 ,  B01J27/24 ,  B01J31/00 ,  C07C20060101 ,  C07C67/00 ,  C07C239/00 ,  C07C269/00 ,  C07C125/06

CPC分类号： C07C271/06

摘要： Aromatic urethanes are produced by interacting an aromatic nitro compound, an organic compound containing hydroxyl groups and carbon monoxide in the presence of a catalyst composed of elemental selenium or a selenium compound and of a promoter composed of a bicyclic amidine together with a phenolic compound or a carboxylic acid. The interaction proceeds smoothly with the aid of a small amount of the promoter, attended with secondary production of amino compounds only in small amounts. For instance, 2,4-diethyldicarbamatetoluene is obtained at a yield of 87% by interacting 2,4-dinitrotoluene, ethanol and carbon monoxide in the presence of a catalytic system composed of metallic selenium, 1,8-diazabicyclo(5,4,0)-undecene-7 and acetic acid.

摘要翻译： 芳族聚氨酯通过在由元素硒或硒化合物组成的催化剂和由双环脒组成的助催化剂与酚类化合物或酚类化合物的存在下，使芳族硝基化合物，含有羟基的有机化合物和一氧化碳相互作用来制备， 羧酸。 借助于少量促进剂，相互作用顺利进行，少量次要生产氨基化合物。 例如，通过在由金属硒，1,8-二氮杂双环（5,4），三氟甲磺酸（1,1-二甲基乙基）丙烷等组成的催化体系的存在下，使2,4-二硝基甲苯，乙醇和一氧化碳相互作用，以87％的收率得到2,4-二乙基氨基甲酸甲酯， 0） - 十一碳烯-7和乙酸。

公开(公告)号：US4080365A

公开(公告)日：1978-03-21

申请号：US687933

申请日：1976-05-19

申请人： Yutaka Hirai ,  Katsuharu Miyata ,  Seiji Hasegawa

发明人： Yutaka Hirai ,  Katsuharu Miyata ,  Seiji Hasegawa

IPC分类号： C07D279/18 ,  B01J27/00 ,  B01J27/02 ,  B01J31/00 ,  B01J31/04 ,  C07B61/00 ,  C07C20060101 ,  C07C67/00 ,  C07C239/00 ,  C07C269/00 ,  C07D239/42 ,  C07D285/20 ,  C07C125/06

CPC分类号： C07C271/06

摘要： Aromatic urethanes can be produced in exceedingly improved yield when an aromatic nitro compound, an organic compound containing hydroxyl groups, and carbon monoxide are reacted in the presence of a catalyst composed of metallic (elemental) selenium or a selenium compound and a base serving as promoter, to which reaction system an aromatic amino compound and/or an aromatic urea compound which will be secondarily produced by the reaction has been previously added in order to suppress side reactions. For instance, when nitrobenzene, methanol and carbon monoxide are interacted in the presence of metallic selenium and triethylenediamine, the conversion of nitrobenzene is 68% and the percentage of formed methyl N-phenylcarbamate to the interacted nitrobenzene is 80%, whereas when the reaction is effected under the same reaction conditions indicated above with addition to the reaction system of aniline in an amount of about 15 wt. % of the nitrobenzene, the conversion of nitrobenzene and the percentage of formed methyl N-phenylcarbamate reach 100% and 98%, respectively.

摘要翻译： 当芳族硝基化合物，含羟基的有机化合物和一氧化碳在由金属（元素）硒或硒化合物组成的催化剂和作为助催化剂的碱的存在下反应时，可以以极高的产率生产芳香族聚氨酯。 为了抑制副反应，预先加入将通过反应二次生成的芳香族氨基化合物和/或芳香族脲化合物的反应体系。 例如，当硝基苯，甲醇和一氧化碳在金属硒和三亚乙基二胺的存在下相互作用时，硝基苯的转化率为68％，形成的N-苯基氨基甲酸甲酯与相互作用的硝基苯的百分比为80％，而当反应为 在与上述相同的反应条件下加入约15重量％的苯胺的反应体系进行。 硝基苯的百分比，硝基苯的转化率和形成的N-苯基氨基甲酸甲酯的百分比分别达到100％和98％。

公开(公告)号：US4134880A

公开(公告)日：1979-01-16

申请号：US870890

申请日：1978-01-19

申请人： Katsuharu Miyata ,  Yutaka Hirai ,  Hiroshi Yoshida

发明人： Katsuharu Miyata ,  Yutaka Hirai ,  Hiroshi Yoshida

IPC分类号： C07C271/06 ,  C08L79/00

CPC分类号： C07C271/06

摘要： An aromatic urethane of high quality and excellent heat stability can be produced in high yield by reacting an aromatic nitro compound, a hydroxyl group-containing organic compound and carbon monoxide in the presence of a catalytic system composed of (1) palladium, ruthenium, rhodium or a compound thereof, (2) a Lewis acid, and (3) ammonia. The use of such catalytic system can suppress undesirable side reactions to a satisfactory extent and ensures the reaction to proceed without causing any corrosion of a stainless steel reactor. If necessary, water may be added to the reaction system to increase the reaction velocity, by which the unit cost of the catalyst can be reduced.

摘要翻译： 在由（1）钯，钌，铑组成的催化体系存在下，通过使芳族硝基化合物，含羟基的有机化合物和一氧化碳反应，可以高收率地制备高质量和优异的热稳定性的芳族聚氨酯 或其化合物，（2）路易斯酸和（3）氨。 使用这样的催化体系可以将不期望的副反应抑制到令人满意的程度，并确保反应进行而不会引起不锈钢反应器的任何腐蚀。 如果需要，可以向反应体系中加入水以提高反应速度，由此可以降低催化剂的单位成本。

公开(公告)号：US4070401A

公开(公告)日：1978-01-24

申请号：US331834

申请日：1973-02-12

申请人： Yutaka Hirai ,  Katsuharu Miyata

发明人： Yutaka Hirai ,  Katsuharu Miyata

IPC分类号： C07C20060101 ,  C07C85/11

摘要： A method for the preparation of a halogenated aromatic amine, wherein a halogenated aromatic nitro compound is hydrogenated in liquid phase in the presence of a platinum-base catalyst to obtain a corresponding halogenated aromatic amine, the hydrogenation being carried out in the presence of an alkylmonoamine, an alicyclic amine or a polyalkylenepolyamine. The presence of the amine well suppresses a dehalogenation reaction which would otherwise be involved, so that not only a high purity halogenated aromatic amine is obtained, but also corrosion of a reactor is prevented.

摘要翻译： 一种制备卤代芳族胺的方法，其中卤化芳族硝基化合物在铂碱催化剂存在下在液相中氢化得到相应的卤代芳族胺，氢化在烷基一胺存在下进行 ，脂环族胺或聚亚烷基多胺。 胺阱的存在抑制了否则将涉及的脱卤反应，因此不仅可以获得高纯度的卤代芳族胺，而且可以防止反应器的腐蚀。

公开(公告)号：US4806683A

公开(公告)日：1989-02-21

申请号：US16736

申请日：1987-02-20

申请人： Katsuharu Miyata ,  Usaji Takaki ,  Toshio Matsuhisa

发明人： Katsuharu Miyata ,  Usaji Takaki ,  Toshio Matsuhisa

IPC分类号： C07C61/22 ,  C07C27/00 ,  C07C27/02 ,  C07C51/00 ,  C07C51/09 ,  C07C57/44 ,  C07C59/52 ,  C07C59/64 ,  C07C67/00 ,  C07C63/64

CPC分类号： C07C51/09

摘要： A process is disclosed which prepares a cinnamic acid from a cinnamate ester by starting the hydrolysis reaction of the cinnamate ester with an alkali by use of water as a solvent in a heterogeneous binary-phase liquid system to obtain an aqueous alkaline solution of an alkali cinnamate and precipitating the cinnamic acid by conducting an acidifying reaction of said aqueous alkaline solution with a mineral acid so as to keep a pH value of not more than 4 in a resulting liquid.

公开(公告)号：US5763687A

公开(公告)日：1998-06-09

申请号：US763146

申请日：1996-12-10

申请人： Jyoji Morisaki ,  Masaaki Iijima ,  Kouki Oogaki ,  Hiroaki Matsuno ,  Takashi Yamaguchi ,  Katsuharu Miyata

发明人： Jyoji Morisaki ,  Masaaki Iijima ,  Kouki Oogaki ,  Hiroaki Matsuno ,  Takashi Yamaguchi ,  Katsuharu Miyata

IPC分类号： B01J19/24 ,  C07C201/08 ,  C07C205/06 ,  C07C205/12 ,  C07C205/00 ,  C07C201/00

CPC分类号： C07C201/08 ,  B01J19/2415 ,  B01J2219/00186

摘要： An improved preparation process for an aromatic mononitro compound comprising reacting an aromatic compound with mixed acid consisting of nitric acid, sulfuric acid or phosphoric acid and water, wherein these flow to react with each other in a reactor comprising a tube inside of which more than one twisted tabular members are aligned in sequence in a manner that a front margin of a twisted tabular member is substantially perpendicular to an back margin of the preceding member, can resolve a number of problems such as an inadequate mixing efficiency, reduction of a reaction rate, associated voluminal increase/complication of a reactor and difficulty in securing safety as well as provide the aromatic mononitro compound with minimal amount of by-products in a considerably short period.

摘要翻译： 一种改进的芳族单硝基化合物的制备方法，包括使芳族化合物与硝酸，硫酸或磷酸和水组成的混合酸反应，其中这些流动在包含管内的多个反应器的反应器中彼此反应 扭曲的平板状构件按照使得扭曲的平板状构件的前缘基本上垂直于前一构件的后缘的方式顺序排列，可以解决许多问题，例如不充分的混合效率，降低反应速率， 相关的体积增加/反应器的并发症和难以确保安全性，以及在相当短的时间内提供芳香族单硝基化合物与最少量的副产物。

公开(公告)号：US5707919A

公开(公告)日：1998-01-13

申请号：US552775

申请日：1995-11-03

申请人： Katsuharu Miyata ,  Jyoji Morisaki ,  Teruo Hirayama ,  Hironori Kamachi ,  Kunihiro Yamada

发明人： Katsuharu Miyata ,  Jyoji Morisaki ,  Teruo Hirayama ,  Hironori Kamachi ,  Kunihiro Yamada

IPC分类号： B01J23/885 ,  C01B7/04 ,  B01J23/26 ,  B01J23/04 ,  B01J23/72

CPC分类号： B01J23/885 ,  C01B7/04 ,  Y02P20/228

摘要： A method for preparing an improved catalyst for use in the preparation of chlorine by the oxidization of hydrogen chloride with an oxygen-containing gas. The catalyst mainly comprises chromium oxide and can be used for a long period of time particularly under low oxygen content conditions, and the activity of the catalyst does not easily deteriorate, and in other words, the catalyst has a long life. Furthermore, there are disclosed the catalyst obtained by this preparation method, and a method for preparing chlorine from hydrogen chloride by the use of the catalyst. The method for preparing the improved catalyst comprises adding copper, an alkali metal and a rare earth metal, or adding chromium, copper, an alkali metal and a rare earth metal to a catalyst containing chromium oxide as a main component, and then calcining the catalyst at a temperature of 800.degree. C. or less.

摘要翻译： 一种通过用含氧气体氧化氯化氢制备用于制备氯的改进催化剂的方法。 催化剂主要包含氧化铬，可长时间使用，特别是低氧含量条件下，催化剂的活性不易劣化，换句话说，催化剂寿命长。 此外，公开了通过该制备方法获得的催化剂，以及通过使用催化剂从氯化氢制备氯的方法。 制备改性催化剂的方法包括加入铜，碱金属和稀土金属，或在含有氧化铬作为主要成分的催化剂中加入铬，铜，碱金属和稀土金属，然后煅烧催化剂 温度在800℃以下。