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公开(公告)号：US5925791A
公开(公告)日：1999-07-20
申请号：US31964
申请日：1998-02-27
申请人： Hans-Josef Buysch , Christian Laue , Heinrich Konigshofen , Ulrich Notheis , Pieter Ooms , Ursula Pentling
发明人： Hans-Josef Buysch , Christian Laue , Heinrich Konigshofen , Ulrich Notheis , Pieter Ooms , Ursula Pentling
IPC分类号： B01J23/42 , B01J23/44 , C07B61/00 , C07C209/36 , C07C209/60 , C07C211/54 , C07C211/55 , C07C209/30
CPC分类号： C07C209/36
摘要： 4-aminodiphenylamines are produced by hydrogenating nitrobenzene with hydrogen in the presence of bases containing hydroxide and/or oxide groups and heterogeneous catalysts and in the presence of inert aprotic solvents at temperatures of 0 to 200.degree. C. and pressures of 0.1 to 150 bars.
摘要翻译： 在含有氢氧化物和/或氧化物基团和非均相催化剂的碱的存在下，在惰性非质子溶剂存在下，在0-200℃，压力为0.1-150巴的条件下，用氢气还原硝基苯来制备4-氨基二苯胺。
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2.发明授权Process for the manufacture of aromatic amines by gas-phase hydrogenation and catalyst useful thereof 失效通过气相氢化制备芳香胺的方法及其有用的催化剂
公开(公告)号：US5962365A
公开(公告)日：1999-10-05
申请号：US878592
申请日：1997-06-19
IPC分类号： B01J21/18 , B01J23/62 , C07B61/00 , C07C209/36 , C07C211/45 , C07C211/46 , C07C211/47 , C07C211/50 , B01J23/00 , B01J23/42 , C07C5/10
CPC分类号： C07C209/36 , B01J23/628
摘要： Aromatic amines are produced by catalytic hydrogenation of nitroaromatic compounds in the gas phase. The catalyst includes palladium and lead on graphite or on a graphite-containing coke support. From 30 to 6000 equivalents of hydrogen for each equivalent of nitro groups are contacted with the catalyst during this process.
摘要翻译： 芳族胺通过在气相中的硝基芳族化合物的催化氢化产生。 催化剂包括钯和铅在石墨上或含石墨的焦炭载体上。 在此过程中，每当量硝基的30至6000当量氢与催化剂接触。
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3.发明授权Process for the manufacture of aromatic amines by gas-phase hydrogenation and catalyst useful thereof 失效通过气相氢化制备芳香胺的方法及其有用的催化剂
公开(公告)号：US5679858A
公开(公告)日：1997-10-21
申请号：US660622
申请日：1996-06-06
IPC分类号： B01J21/18 , B01J23/62 , C07B61/00 , C07C209/36 , C07C211/45 , C07C211/46 , C07C211/47 , C07C211/50
CPC分类号： C07C209/36 , B01J23/628
摘要： Aromatic amines are produced by catalytic hydrogenation of nitroaromatic compounds in the gas phase. The catalyst includes palladium and lead on graphite or on a graphite-containing coke support. From 30 to 6000 equivalents of hydrogen for each equivalent of nitro groups are contacted with the catalyst during this process.
摘要翻译： 芳族胺通过在气相中的硝基芳族化合物的催化氢化产生。 催化剂包括钯和铅在石墨上或含石墨的焦炭载体上。 在此过程中，每当量硝基的30至6000当量氢与催化剂接触。
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公开(公告)号：US5808157A
公开(公告)日：1998-09-15
申请号：US511165
申请日：1995-08-04
IPC分类号： B01J23/648 , B01J23/44 , B01J23/64 , C07B61/00 , C07C209/36 , C07C211/44 , C07C211/45 , C07C211/46 , C07C211/47 , C07C211/49 , C07C209/04
CPC分类号： C07C209/36
摘要： Aromatic amines are produced by hydrogenation of the associated aromatic nitro compounds in the gas phase over fixed catalysts. The catalysts contain active hydrogenation metals on supports. The reaction is conducted at a pressure of 2-50 bar and at a temperature in the range 250.degree.-500.degree. C. under adiabatic conditions. A circulating gas is passed over the catalyst, which circulating gas contains 3-150 moles of hydrogen, 2-100 moles of the amino groups to be formed per mole of nitro groups, and 2 to 6 moles of water per amino group equivalent. The amine and water formed, as well as a purification stream, are separated from the circulating gas. Thereafter the circulating gas is enriched with volatilised aromatic nitro compound and fresh hydrogen and recycled.
摘要翻译： 通过在气相中通过固定催化剂氢化相关联的芳族硝基化合物来生产芳族胺。 催化剂在载体上含有活性氢化金属。 反应在绝热条件下，在2-50巴的压力和250-500℃的温度下进行。 循环气体通过催化剂，循环气体含有3-150摩尔氢，每摩尔硝基形成2-100摩尔氨基和每个氨基当量2-6摩尔水。 所形成的胺和水以及净化物流与循环气体分离。 此后，循环气体富含挥发的芳香硝基化合物和新鲜氢气并再循环。
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公开(公告)号：US5877350A
公开(公告)日：1999-03-02
申请号：US511164
申请日：1995-08-04
IPC分类号： B01J23/44 , B01J23/64 , B01J23/648 , C07B61/00 , C07C209/36 , C07C211/44 , C07C211/45 , C07C211/46 , C07C211/47 , C07C211/49
CPC分类号： C07C209/36
摘要： Aromatic amines are produced by hydrogenation of the appropriate aromatic nitro compounds in the vapour phase on fixed catalysts. The catalysts contain supported metals active in hydrogenation, the reaction is carried out under adiabatic conditions at a pressure of from 1 to 30 bar, an inlet temperature of from 200.degree. to 400.degree. C. and a maximum catalyst temperature of 500.degree. C.
摘要翻译： 通过在固定催化剂上的气相中合适的芳族硝基化合物的氢化产生芳族胺。 催化剂含有在氢化中有活性的负载型金属，该反应在绝热条件下，压力为1至30巴，入口温度为200-400℃，最大催化剂温度为500℃。
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公开(公告)号：US5386067A
公开(公告)日：1995-01-31
申请号：US252154
申请日：1994-06-01
申请人： Ursula Pentling , Hans-Josef Buysch , Lothar Puppe , Kai Rohlk , Rolf Grosser , Hans-Ingolf Paul
发明人： Ursula Pentling , Hans-Josef Buysch , Lothar Puppe , Kai Rohlk , Rolf Grosser , Hans-Ingolf Paul
IPC分类号： B01D15/00 , B01D15/04 , C07C17/38 , C07C17/389 , C07C25/08
CPC分类号： C07C17/389
摘要： Mixtures of m- and p-dichlorobenzene can be separated by treating such mixtures in the liquid phase with a pentasil zeolite at from 20.degree. to 250.degree. C., a filtrate enriched in m-dichlorobenzene being removed and the p-dichlorobenzene being obtained by desorption of the pentasil zeolite. The pentasil zeolites may contain, as exchangeable cations, protons, cations of the first or second main group of the Mendeleev Periodic System, cations of the rare earth metals or a mixture of a plurality thereof. In order to prepare the liquid phase a solvent is used that belongs to the group of cyclic saturated hydrocarbons having 5 to 15 carbon atoms, alkyl-substituted aromatic hydrocarbons having 8 to 12 carbon atoms, and halogen-substituted aromatic hydrocarbons having 6 to 10 carbon atoms and 1 to 3 halogen atoms. The solvents ethylbenzene, chlorobenzene, p-xylene, p-chlorotoluene and dichlorobenzene are excepted. A mixture of a plurality of these solvents may also be used.
摘要翻译： 可以通过在20至250℃下用pentasil沸石处理液相中的这种混合物来分离对 - 二氯苯的混合物，除去富含间二氯苯的滤液，将对二氯苯由 五硅沸石的解吸。 戊二烯沸石可以包含作为可交换阳离子的质子，门多列夫周期系统的第一或第二主要组分的阳离子，稀土金属的阳离子或其多个混合物。 为了制备液相，使用属于具有5至15个碳原子的环状饱和烃基团，具有8至12个碳原子的烷基取代的芳族烃和具有6至10个碳原子的卤素取代的芳族烃的溶剂 原子和1至3个卤素原子。 溶剂乙苯，氯苯，对二甲苯，对氯甲苯和二氯苯除外。 也可以使用多种这些溶剂的混合物。
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公开(公告)号：US5763717A
公开(公告)日：1998-06-09
申请号：US524554
申请日：1995-09-07
申请人： Hans-Josef Buysch , Christine Mendoza-Frohn , Jurgen Scharschmidt , Ulrich Notheis , Rudolf Jurgen Klee , Gerhard Darsow
发明人： Hans-Josef Buysch , Christine Mendoza-Frohn , Jurgen Scharschmidt , Ulrich Notheis , Rudolf Jurgen Klee , Gerhard Darsow
摘要： A description is given of the preparation of hydroxybiphenyl by dehydrogenation of completely or partially hydrogenated precursors using a supported Rh catalyst which additionally contains chromium, manganese and alkali metal and can contain a sulphur compound. The Rh catalyst which can be used according to the invention is prepared from halide-free starting materials. The Rh catalyst is distinguished by a low dependence of the initial selectivity, with the selectivity in the run-in state and the running-in time on the conditions of the reductive pretreatment and requires only short running-in times to reach the optimum state.
摘要翻译： 描述了使用另外含有铬，锰和碱金属并且可以含有硫化合物的负载的Rh催化剂，通过完全或部分氢化的前体脱氢来制备羟基联苯。 根据本发明可以使用的Rh催化剂由无卤素起始材料制备。 Rh催化剂的特征在于初始选择性的低依赖性，在导入状态下的选择性和还原预处理条件下的进入时间，并且仅需要短的进入时间才能达到最佳状态。
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公开(公告)号：US5856516A
公开(公告)日：1999-01-05
申请号：US911961
申请日：1997-08-15
IPC分类号： B01J23/46 , C07B61/00 , C07D209/86
CPC分类号： C07D209/86
摘要： Carbazole can be prepared by dehydrogenation of compounds of the formula ##STR1## or by aminating dehydrogenation of compounds of the formula ##STR2## at 300.degree. to 600.degree. C. in the presence of hydrogen over an iridium catalyst or an iridium-containing catalyst.
摘要翻译： 咔唑可以通过式（Ⅰ）化合物（II）（III）化合物的脱氢或通过酰胺化式（IV）化合物（IVa）的脱氢来制备。 （VIII）（VII）（VIII）（VIII）（IX）在（IX）中，在氢存在下，在300〜600℃下 铱催化剂或含铱催化剂。
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公开(公告)号：US5734004A
公开(公告)日：1998-03-31
申请号：US778843
申请日：1997-01-06
CPC分类号： C07C68/08
摘要： The present invention relates to a distillation process for the purification of carbonic acid diaryl esters.
摘要翻译： 本发明涉及一种用于纯化碳酸二芳基酯的蒸馏方法。
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公开(公告)号：US5473094A
公开(公告)日：1995-12-05
申请号：US271488
申请日：1994-07-07
申请人： Pieter Ooms , Norbert Schon , Hans-Josef Buysch
发明人： Pieter Ooms , Norbert Schon , Hans-Josef Buysch
CPC分类号： C07C68/02
摘要： Carbonates with aromatic ester groups may be prepared by reacting aromatic monohydroxy compounds with phosgene or with chloroformates of aromatic monohydroxy compounds, wherein reaction takes place at a temperature in the range 50.degree. to 350.degree. C. in the presence of aluminum oxides as heterogeneous catalysts.
摘要翻译： 具有芳族酯基的碳酸酯可以通过使芳族单羟基化合物与光气或芳族单羟基化合物的氯甲酸酯反应制备，其中在作为多相催化剂的氧化铝存在下，在50℃至350℃的温度下进行反应。
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