公开(公告)号：US5410085A

公开(公告)日：1995-04-25

申请号：US139344

申请日：1993-10-20

申请人： Udo Birkenstock ,  Walter Kipshagen ,  Herbert Schmidt ,  Thomas-Jorn Schulz ,  Eberhard Zirngiebl

发明人： Udo Birkenstock ,  Walter Kipshagen ,  Herbert Schmidt ,  Thomas-Jorn Schulz ,  Eberhard Zirngiebl

IPC分类号： B01J21/18 ,  B01J23/42 ,  B01J23/89 ,  C07B61/00 ,  C07C209/36 ,  C07C211/52

CPC分类号： B01J23/8913 ,  B01J21/18 ,  B01J23/42 ,  B01J23/892 ,  C07C209/36 ,  C07C209/365

摘要： Chlorine-substituted aromatic amines are prepared by the hydrogenation of chlorine-substituted aromatic nitro compounds in the presence of a catalyst containing platinum and nickel and/or cobalt on an activated charcoal support, the platinum having been simultaneously deposited and reduced on the activated charcoal support in the preparation of the catalyst. Such catalysts are furthermore prepared, as are catalysts containing noble metals on an activated charcoal support, it also being possible for the latter to be used for the reduction of nitronaphthalenes or nitrotoluenes.

摘要翻译： 氯取代的芳族胺通过在活性炭载体上含有铂和镍和/或钴的催化剂存在下，通过氯取代的芳族硝基化合物的氢化来制备，铂同时沉积并还原在活性炭载体上 在催化剂的制备中。 此外，还制备了这样的催化剂，如在活性炭载体上含有贵金属的催化剂，后者也可用于还原硝基萘或硝基甲苯。

公开(公告)号：US5288894A

公开(公告)日：1994-02-22

申请号：US958853

申请日：1992-10-08

申请人： Heinz Landscheidt ,  Erich Wolters ,  Alexander Klausener ,  Heinz-Ulrich Blank ,  Udo Birkenstock

发明人： Heinz Landscheidt ,  Erich Wolters ,  Alexander Klausener ,  Heinz-Ulrich Blank ,  Udo Birkenstock

IPC分类号： B01J27/13 ,  C07B61/00 ,  C07C68/00 ,  C07C69/96 ,  C07C68/06

CPC分类号： C07C68/00 ,  Y02P20/582

摘要： Dialkyl carbonates can be prepared by reaction of carbon monoxide with alkyl nitrites in a continuous gas phase reaction, in which a platinum metal catalyst of oxidic or hydroxidic compounds of elements from group Vb of the Periodic Table (Mendeleev) as supports and, if desired, addition of an antimony, bismuth, aluminium, copper, vanadium, niobium, tantalum, tin, iron, cobalt, nickel compound or a mixture of a plurality thereof on this catalyst are used, and the hydrogen halide which is discharged from the reactor together with the reaction mixture is batchwise or continuously replaced in the course of the reaction. This results in the formation of dialkyl carbonates in almost quantitative selectivity; the corresponding dialkyl oxalates can, in most cases, not be detected.

摘要翻译： 碳酸二烷基酯可以通过一氧化碳与亚硝酸烷基酯在连续气相反应中的反应来制备，其中将元素周期表（Mendeleev）中元素的氧化或氢化化合物的铂金属催化剂作为载体，如果需要， 使用在该催化剂上添加锑，铋，铝，铜，钒，铌，钽，锡，铁，钴，镍化合物或其多种混合物，将从反应器排出的卤化氢与 反应混合物在反应过程中间歇或连续替代。 这导致几乎定量选择性形成碳酸二烷基酯; 在大多数情况下，相应的草酸二烷基酯可以不被检测。

公开(公告)号：US5253993A

公开(公告)日：1993-10-19

申请号：US868913

申请日：1992-04-15

申请人： Udo Birkenstock ,  Wolfgang Gay ,  Wolfgang Korsch

发明人： Udo Birkenstock ,  Wolfgang Gay ,  Wolfgang Korsch

IPC分类号： B01J25/00 ,  B01J25/02 ,  B01J37/00 ,  B22F3/02 ,  B22F3/22 ,  B30B11/02 ,  B22F3/00

CPC分类号： B30B15/0082 ,  B01J25/02 ,  B01J37/0009 ,  B22F3/02 ,  B22F3/22 ,  B30B11/005 ,  B30B11/02 ,  B30B11/027

摘要： An apparatus for the production of pellets of metal powder, more particularly pellets of highly active metal powder, for example Raney catalysts, has a press with a filling shoe and a pellet discharge shoot. A wet processing environment is established and thus no inert gas atmosphere is required to avoid oxidation of the metal powder.

公开(公告)号：US4792626A

公开(公告)日：1988-12-20

申请号：US917449

申请日：1986-10-10

申请人： Dieter Becher ,  Udo Birkenstock ,  Eckart Waldau ,  Harro Witt

发明人： Dieter Becher ,  Udo Birkenstock ,  Eckart Waldau ,  Harro Witt

IPC分类号： C07B61/00 ,  B01J25/00 ,  B01J25/02 ,  C07C67/00 ,  C07C209/00 ,  C07C209/36 ,  C07C211/50 ,  C07C211/55 ,  C07C85/11

CPC分类号： B01J25/02 ,  B01J25/00 ,  C07C209/36

摘要： Aromatic diamino compounds are produced by hydrogenating the corresponding dinitro compounds in the presence of a modified Raney catalyst. The modified Raney catalyst is obtained by treating an alloy made up of 50-95 wt % of aluminum, 4-45 wt % nickel and/or cobalt and 1-46 wt % of at least one modifying metal with an alkali material. The modifying metal is selected from the metals of the first, fourth, fifth, sixth, seventh and eighth subgroups of the Periodic Table of Elements. The hydrogenation is preferably carried out at from 170.degree. to 250.degree. C. and a pressure of 15-50 bar. The heat generated during hydrogenation is preferably used to produce steam.

摘要翻译： 通过在改性的阮内催化剂的存在下氢化相应的二硝基化合物来制备芳族二氨基化合物。 修饰的阮内催化剂通过用碱材料处理由50-95重量％的铝，4-45重量％的镍和/或钴和1-46重量％的至少一种改性金属组成的合金而获得。 修饰金属选自元素周期表的第一，第四，第五，第六，第七和第八子族的金属。 氢化优选在170-250℃和15-50巴的压力下进行。 在氢化期间产生的热量优选用于产生蒸汽。

公开(公告)号：US4774221A

公开(公告)日：1988-09-27

申请号：US921034

申请日：1986-10-20

申请人： Harald Medem ,  Udo Birkenstock ,  Herbert Schmidt ,  Burkhard Lachmann

发明人： Harald Medem ,  Udo Birkenstock ,  Herbert Schmidt ,  Burkhard Lachmann

IPC分类号： B01J21/16 ,  B01J23/44 ,  B01J35/10 ,  B01J37/02 ,  B01J37/03 ,  B01J37/16 ,  B01J37/18 ,  C07B61/00 ,  C07C27/00 ,  C07C29/20 ,  C07C67/00 ,  B01J23/58

CPC分类号： B01J23/44 ,  C07C29/20 ,  B01J35/1009 ,  B01J35/1014 ,  B01J37/0207 ,  B01J37/03 ,  B01J37/16 ,  B01J37/18 ,  C07C2101/14 ,  Y10S502/524

摘要： Supported catalysts containing palladium on a support material are improved by added bases which remain on the material. These supported catalysts are useful for hydrogenating optionally substituted phenols to give the corresponding cyclohexanols as the predominant product.

摘要翻译： 在载体材料上含有钯的载体催化剂通过留在材料上的添加碱来改善。 这些负载的催化剂可用于氢化任选取代的酚，得到相应的环己醇作为主要产物。

公开(公告)号：US4265834A

公开(公告)日：1981-05-05

申请号：US66977

申请日：1979-08-16

申请人： Udo Birkenstock ,  Burkhard Lachmann ,  Josef Metten ,  Herbert Schmidt

发明人： Udo Birkenstock ,  Burkhard Lachmann ,  Josef Metten ,  Herbert Schmidt

IPC分类号： C07B61/00 ,  B01J21/04 ,  B01J23/00 ,  B01J23/64 ,  B01J23/648 ,  C07C67/00 ,  C07C209/00 ,  C07C209/36 ,  C07C211/46 ,  C07C85/11

CPC分类号： C07C209/36 ,  B01J23/64 ,  B01J23/6482 ,  B01J37/0205 ,  B01J2523/00 ,  B01J37/16 ,  B01J37/18

摘要： A process for the hydrogenation of nitrobenzene to aniline is described wherein the nitrobenzene is contacted with hydrogen in the presence of a multi-component supported catalyst containing 1 to 20 grams of noble metal per liter of support and 1 to 20 grams per liter of support of one or more transition metal of the Groups IVa, Va, or VIa of the Periodic Table. The catalyst can contain 1 to 20 grams per liter of support of a further transition group element or of a member of the main group. The catalyst is one which has been prepared by a process involving pretreatment of the support with a base prior to impregnation with the catalytically active substances, followed by drying to a residual moisture content of less than 10 percent of the maximum absorbency of the support.

摘要翻译： 描述了将硝基苯氢化为苯胺的方法，其中硝基苯在氢气存在下，每升载体含有1至20克贵金属和每升支撑物1至20克的多组分负载型催化剂存在下，与氢气接触 周期表第Ⅳa，Ⅴa或Ⅵa族的一种或多种过渡金属。 催化剂可以含有1至20克/升的另一过渡组元素或主组成员的载体。 该催化剂是通过在用催化活性物质浸渍之前用碱预处理载体的方法制备的催化剂，然后干燥至小于载体最大吸收度的10％的残余水分含量。

公开(公告)号：US4224248A

公开(公告)日：1980-09-23

申请号：US953227

申请日：1978-10-17

申请人： Udo Birkenstock ,  Josef Haydn

发明人： Udo Birkenstock ,  Josef Haydn

IPC分类号： B01J37/00 ,  B01J25/00 ,  B01J25/02 ,  B01J27/02 ,  B01J27/24 ,  B01J33/00 ,  C07B61/00 ,  C07C67/00 ,  C07C209/00 ,  C07C209/34 ,  C07C209/36 ,  C07C209/38 ,  C07C209/44 ,  C07C209/48 ,  C07C85/11 ,  C07C85/12

CPC分类号： B01J25/02 ,  B01J33/00 ,  B01J27/02 ,  B01J27/24

摘要： A process has been developed for the depyrophorization of pyrophoric metal catalysts, such as Raney nickel catalysts, which comprises treating said pyrophoric metal catalysts in water and/or an organic solvent with an organic nitro compound or a nitroso compound. The catalysts which are obtained according to the process of the invention are useful for carrying out all hydrogenation reaction which can be carried out using the corresponding pyrophoric catalysts. The catalysts obtained are further distinguished by high activity and extended life. They are not contaminated by contact catalyst poisons and can be used essentially without pre-activation.

摘要翻译： 已经开发了用于自发性金属催化剂（如阮内镍催化剂）的去矿化的方法，其包括用有机硝基化合物或亚硝基化合物处理水和/或有机溶剂中的所述自燃金属催化剂。 根据本发明方法获得的催化剂可用于进行可使用相应的发火催化剂进行的所有氢化反应。 所获得的催化剂进一步被高活性和延长的使用寿命区分。 它们不被接触催化剂毒物污染，并且可以基本上不用于预活化。