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1.发明公开
公开(公告)号：EP1229018A1
公开(公告)日：2002-08-07
申请号：EP01300872.7
申请日：2001-01-31
IPC分类号： C07C213/10 , C07C213/00
CPC分类号： B01J23/892 , C07C213/00 , C07C215/76
摘要： The present invention provides a single step process for the preparation of p -aminophenol by hydrogenation of nitrobenzene in presence of an aqueous acid over a mono or bimetallic catalyst at a temperature in the range of 80-120°C for a period of 1 to 4 hrs. The resulting reaction mixture is extracted with toluene to separate the aqueous layer containing PAP and neutralising it stepwise with ammonia solution to recover the solid p -aminophenol.
摘要翻译： 本发明提供了一种单步法，其通过硝酸苯在含水酸存在下，在单或双金属催化剂的存在下，在80-120℃的温度范围内氢化1至4，制备对氨基苯酚 小时。 所得反应混合物用甲苯萃取以分离含有PAP的水层并用氨溶液逐步中和以回收固体对氨基苯酚。
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2.发明公开Improved nickel catalyst, process for the preparation thereof, process for hydrogenation of m-dinitrobenzene to m-phenylene diamine 审中-公开改进的镍催化剂，工艺及其制备和工艺间 - 二硝基苯氢化为间苯二胺
公开(公告)号：EP1518600A1
公开(公告)日：2005-03-30
申请号：EP04255932.8
申请日：2004-09-29
IPC分类号： B01J23/89 , C07C209/36 , B01J37/18 , B01J37/02 , B01J35/00
CPC分类号： C07C209/36 , B01J21/18 , B01J23/892 , B01J23/8946 , B01J27/232 , B01J29/06 , B01J35/002 , B01J37/0205 , B01J37/031 , B01J37/16 , B01J37/18 , C07C211/51
摘要： A nickel based bimetallic catalyst of the formula Ni(x)B(y)/A is disclosed wherein A is a support selected from the group consisting of carbon, alumina, silica, carbonate and zeolite, B is selected from the group consisting of platinum and palladium and x = 0.5 - 99.9%' y=0.2 to 10%, expressed as % of A. A process for the preparation is also disclosed and a process for the hydrogenation using the catalyst to hydrogenate m-dinitro benzene to m-phenylene diamine in the presence of a supported bimetallic platinum catalyst using methanol as a solvent. The catalyst of the present invention is a bimetallic catalyst prepared by precipitation and impregnation technique at very specific preparation conditions.
摘要翻译： 式的Ni（x）的B（y）的镍基双金属催化剂/ A是圆盘游离缺失worin A是选自碳，氧化铝，二氧化硅，碳酸盐和沸石中选择的支持，B是选自铂中选择的 和钯并且x = 0.5 - 99.9％“Y = 0.2％至10％表示为A的％A游离缺失用于制备gibt光盘和使用该催化剂氢化米二硝基苯间 - 亚苯基对氢化的方法过程 二胺在使用甲醇作为溶剂的负载的双金属铂催化剂存在下进行。 本发明的催化剂是通过沉淀和浸渍技术在非常具体的制备条件下制备的双金属催化剂。
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3.发明公开
公开(公告)号：EP1207146A3
公开(公告)日：2003-11-19
申请号：EP00310557.4
申请日：2000-11-29
发明人： Chaudhari, Raghunath Vitthal , Rode, Chandrashekhar Vasant , Jaganathan, Rengaswamy , Telkar, Manisha Madhukar , Rane, Vilas Hari
IPC分类号： C07C29/17 , C07C33/035
CPC分类号： C07C29/17 , C07C33/035
摘要： A process for the preparation of 1,4 butenediol comprising hydrogenating an aqueous solution of 1,4 butynediol under stirring conditions over a supported platinum or palladium and nickel catalyst in basic medium at a temperature in the range of 20 - 110°C and pressure in the range between 200 - 700 psig till the reaction is completed, cooling the reaction mixture to room temperature and separating the catalyst by known methods to obtain 1, 4 butenediol.
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4.发明公开Nanosized noble metal catalyst and process for selective preparation of 1,4 butenediol 审中-公开Edelmetallkatalysator在Nanogrösseund Verfahren zur selektiven Herstellung von 1,4 Butendiol
公开(公告)号：EP1236512A1
公开(公告)日：2002-09-04
申请号：EP01104866.7
申请日：2001-02-28
IPC分类号： B01J35/00 , B01J31/06 , B01J13/00 , C07C29/17 , C07C33/035
CPC分类号： B01J31/06 , B01J13/0043 , B01J31/28 , B01J35/0013 , B01J2231/645 , C07C29/17 , C07C33/035
摘要： This invention relates a nanosized noble metal catalyst for selective preparation of aliphatic diols having a general formula:
A/B
Wherein A is a polymeric colloiding agent
and B a noble metal
and a process for the preparation of the said catalyst.
The mole ratio of their composition (A/B) may be in the range of 1-100.
The catalyst is used in the selective hydrogeneration of 1,4 butynediol to 1,4 butenediol.摘要翻译： 本发明涉及用于选择性制备脂肪族二醇的纳米级贵金属催化剂，其具有以下通式：A / B，其中A是聚合物胶体，B是贵金属，以及制备所述催化剂的方法。 它们的组成（A / B）的摩尔比可以在1-100的范围内。 该催化剂用于1,4-丁炔二醇向1,4-丁烯二醇的选择性加氢生成。
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5.发明公开Process for the conversion of 1,4 butynediol to 1, 4 butenediol 有权维生素Zur Umsetzung von 1,4-Butindiol in 1,4-Butendiol
公开(公告)号：EP1207146A2
公开(公告)日：2002-05-22
申请号：EP00310557.4
申请日：2000-11-29
发明人： Chaudhari, Raghunath Vitthal , Rode, Chandrashekhar Vasant , Jaganathan, Rengaswamy , Telkar, Manisha Madhukar , Rane, Vilas Hari
IPC分类号： C07C29/17 , C07C33/035
CPC分类号： C07C29/17 , C07C33/035
摘要： A process for the preparation of 1,4 butenediol comprising hydrogenating an aqueous solution of 1,4 butynediol under stirring conditions over a supported platinum or palladium and nickel catalyst in basic medium at a temperature in the range of 20 - 110°C and pressure in the range between 200 - 700 psig till the reaction is completed, cooling the reaction mixture to room temperature and separating the catalyst by known methods to obtain 1, 4 butenediol.
摘要翻译： 一种制备1,4-丁烯二醇的方法，包括在搅拌条件下在负载的铂或钯和镍催化剂的碱性介质中，在20-110℃的温度范围内氢化1,4-丁炔二醇的水溶液， 在200-700psig范围内直到反应完成，将反应混合物冷却至室温，并通过已知方法分离催化剂，得到1,4-丁烯二醇。
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6.发明授权
公开(公告)号：EP1207146B1
公开(公告)日：2007-07-25
申请号：EP00310557.4
申请日：2000-11-29
发明人： Chaudhari, Raghunath Vitthal , Rode, Chandrashekhar Vasant , Jaganathan, Rengaswamy , Telkar, Manisha Madhukar , Rane, Vilas Hari
IPC分类号： C07C29/17 , C07C33/035
CPC分类号： C07C29/17 , C07C33/035
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公开(公告)号：EP1229018B1
公开(公告)日：2006-08-09
申请号：EP01300872.7
申请日：2001-01-31
IPC分类号： C07C213/10 , C07C213/00
CPC分类号： B01J23/892 , C07C213/00 , C07C215/76
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