-
1.发明授权Catalyst for the production of a glyoxylic acid by catalytic oxidation of glyoxal and method of its production 失效通过乙二醛的催化氧化生产乙醛酸的催化剂及其生产方法
公开(公告)号：US5395965A
公开(公告)日：1995-03-07
申请号：US246402
申请日：1994-05-20
IPC分类号： B01J23/63 , B01J23/652 , C07B61/00 , C07C51/235 , C07C59/153 , B01J21/18 , C07C51/00 , C07C59/00
CPC分类号： B01J23/6525 , B01J23/63 , C07C51/235
摘要： A catalyst containing platinum on carbon as carrier for the catalytic oxidation of glyoxal to glyoxalic acid. Activity and selectivity of the catalyst can be considerably improved by modification with molybdenum and/or cerium.
摘要翻译： 一种催化剂，含有碳载铂，用于将乙二醛催化氧化成乙醛酸。 催化剂的活性和选择性可以通过用钼和/或铈进行改性而大大提高。
-
2.发明授权Process for uniform and reproducible shell impregnation of fixed bed catalyst supports in the form of loose particles 失效固定床催化剂载体以松散颗粒的形式均匀且可再现的壳浸渍方法
公开(公告)号：US5498590A
公开(公告)日：1996-03-12
申请号：US157233
申请日：1993-11-24
IPC分类号： B01J37/02
CPC分类号： B01J37/0223 , B01J37/0232
摘要： A process for uniform and reproducible impregnation of fixed bed catalyst supports in the form of loose particles with a desired shell volume, by applying atomized impregnating solutions of precursors of the catalytically active components onto the heap of catalyst supports circulated in a tank. By suitable selection of the spraying parameters, in particular the droplet size range, the quantity of solvent and the quantity of impregnating solution sprayed per rotation of the tank, the catalyst supports may be provided with shells with an excellent degree of uniformity.
摘要翻译： 通过将催化活性组分的前体的雾化浸渍溶液施加到在罐中循环的催化剂载体的堆上，使具有所需壳体积的松散颗粒形式的固定床催化剂载体均匀且可重复地浸渍的方法。 通过适当选择喷雾参数，特别是液滴尺寸范围，溶剂的量和每个罐的每转喷涂的浸渍溶液的量，催化剂载体可以具有优异的均匀度的壳。
-
3.发明授权Catalyst precursor for an activated raney metal fixed-bed catalyst, an activated raney metal fixed-bed catalyst and a process for its preparation and use, and a method of hydrogenating organic compounds using said catalyst 失效用于活化的金属固定床催化剂的催化剂前体，活化的金属固定床催化剂及其制备和使用方法，以及使用所述催化剂氢化有机化合物的方法
公开(公告)号：US5536694A
公开(公告)日：1996-07-16
申请号：US322290
申请日：1994-10-13
申请人： Peter Schuetz , Roland Burmeister , Bertrand Despeyroux , Hans Moesinger , Helmfried Krause , Klaus Deller
发明人： Peter Schuetz , Roland Burmeister , Bertrand Despeyroux , Hans Moesinger , Helmfried Krause , Klaus Deller
CPC分类号： B01J37/0009 , B01J25/00 , B01J25/02 , B01J35/0026 , B01J35/1014 , B01J35/1038 , B01J35/023
摘要： Shaped, activated Raney metal fixed-bed catalysts are obtained by molding a powder of at least one catalyst alloy, comprising at least one Raney process metal as catalytically active component and a leachable alloy component, and a powder of pure Raney process metal as binder with the addition of a shaping aid and pore-producer and subsequent calcination at temperatures below 850.degree. C. During calcination the shaping aid and pore-producer are burned away. Catalyst alloy powder and binder powder thereby sinter together to give a mechanically stable and porous molded item. This molded item thus consists of particles of catalyst alloys which are bonded by the powder of pure Raney process metal. It has no catalytically inactive, ceramic or glassy binder. The surface layer of the molded item is activated by leaching the leachable alloy component contained in the catalyst alloys with caustic soda solution.
摘要翻译： 成型的活性阮内金属固定床催化剂通过将至少一种催化剂合金的粉末成型为包含至少一种阮内工艺金属作为催化活性组分和可浸出的合金成分而获得，并将纯阮内工艺金属粉末作为粘合剂， 在低于850℃的温度下加入成型助剂和孔隙生产器并随后进行煅烧。在煅烧过程中，成型助剂和孔隙生产者被烧掉。 催化剂合金粉末和粘合剂粉末由此烧结在一起，得到机械稳定且多孔的模制品。 因此，该模制品由由纯阮内工艺金属的粉末结合的催化剂合金颗粒组成。 它没有催化惰性，陶瓷或玻璃状粘合剂。 模制品的表面层通过用苛性钠溶液浸出催化剂合金中所含的可浸出合金组分来活化。
-
4.发明授权Process for preparing hydrogenation catalysts which contain noble metals on activated carbon 失效制备在活性炭上含有贵金属的氢化催化剂的方法
公开(公告)号：US5449655A
公开(公告)日：1995-09-12
申请号：US212725
申请日：1994-03-14
IPC分类号： B01J21/18 , B01J23/40 , B01J37/02 , B01J37/12 , C07B61/00 , C07C51/36 , C07C57/30 , B01J23/38
CPC分类号： C07C51/36 , B01J37/0207 , B01J37/12
摘要： A process is described for preparing hydrogenation catalysts which contain noble metals, having at least one catalytically active component and optionally promoters and/or modifiers on a support consisting of activated carbon washed with nitric acid. The activated carbon is subjected to an oxidative pretreatment with an oxidizing agent before applying the catalytically active components, promoters and modifiers.
摘要翻译： 描述了一种制备含有贵金属的氢化催化剂的方法，所述贵金属具有至少一种催化活性组分，并且在由用硝酸洗涤的活性炭组成的载体上可选地使用助催化剂和/或改性剂。 在施加催化活性组分，助催化剂和改性剂之前，用氧化剂对活性炭进行氧化预处理。
-
公开(公告)号：US5858906A
公开(公告)日：1999-01-12
申请号：US510033
申请日：1995-08-01
IPC分类号： B30B11/00 , B01J21/04 , B01J21/06 , B01J35/02 , B01J37/00 , B28B3/00 , C01B33/12 , C04B35/14 , C04B35/628 , C04B35/632 , C04B35/636 , C04B38/00 , C07B61/00 , B01J31/00
CPC分类号： C04B35/6325 , B01J37/0009 , C04B35/14 , C04B35/636 , C04B38/00 , Y10S502/509
摘要： Compacts produced from a pyrogenically produced oxide, magnesium stearate, methyl cellulose and urea are mixed together in the presence of water, compacted, dried, comminuted to a powder, and the powder is pressed with an isostatic press to compacts and the compacts tempered. The resulting compacts have an outside diameter of 16 to 100 mm.
摘要翻译： 由热解产生的氧化物，硬脂酸镁，甲基纤维素和尿素制成的压块在水的存在下混合在一起，压实，干燥，粉碎成粉末，粉末用等静压机压制成型，压实。 所得的压块具有16至100mm的外径。
-
6.发明授权Use of catalysts based on catalyst supports containing silicon dioxide for catalytic reactions under hydrothermal conditions 失效在含有二氧化硅的催化剂载体上，在水热条件下催化反应使用催化剂
公开(公告)号：US5959164A
公开(公告)日：1999-09-28
申请号：US806715
申请日：1997-02-27
申请人： H. G. J. Lansink-Rotgerink , Heike Riedemann , Thomas Tacke , Helmfried Krause , Andreas Freund , Roland Burmeister , Peter Panster
发明人： H. G. J. Lansink-Rotgerink , Heike Riedemann , Thomas Tacke , Helmfried Krause , Andreas Freund , Roland Burmeister , Peter Panster
CPC分类号： B01J21/066 , B01J21/063 , B01J21/08 , B01J27/16 , C07C29/04
摘要： The use of modified silicon dioxide as a catalyst support in catalytic reactions under hydrothermal conditions is described. The pore structure of the supports may be stabilized against hydrothermal reaction conditions by impregnating the catalyst supports with elements of Group IVB of the Periodic Tube of Elements.
摘要翻译： 描述了在水热条件下在催化反应中使用改性二氧化硅作为催化剂载体。 通过用元素周期管的IVB族元素浸渍催化剂载体，可以稳定支撑体的孔结构，防止水热反应条件。
-
公开(公告)号：US06207610B1
公开(公告)日：2001-03-27
申请号：US08857491
申请日：1997-05-16
申请人： Helmfried Krause , Hermanus Lansink Rotgerink , Thomas Tacke , Peter Panster , Roland Burmeister
发明人： Helmfried Krause , Hermanus Lansink Rotgerink , Thomas Tacke , Peter Panster , Roland Burmeister
IPC分类号： B01J2108
CPC分类号： C04B35/63452 , B01J21/08 , B01J23/52 , B01J23/58 , B01J35/0026 , B01J35/023 , B01J35/1014 , B01J35/1019 , B01J35/1042 , B01J35/1076 , B01J37/0018 , B01J37/0205 , C04B35/14 , C04B35/634 , C04B35/6365 , C07C67/035 , C07C69/01 , C07C69/15
摘要： Compacts based on pyrogenically produced silicon dioxide and having the following physical and chemical characteristics: Outer diameter 0.8-20 mm BET surface area 30-400 m2/g Pore volume 0.5-1.3 ml/g Breaking strength 10-250N Composition >99.8 wt. % SiO2 Other constituents
摘要翻译： 基于热解产生的二氧化硅并具有以下物理和化学特性的压块：产生的原因在于，热解产生的二氧化硅用甲基纤维素，微蜡和聚乙二醇加水均化，在80-150℃的温度下干燥。 并粉碎成粉末，任选地将粉末压缩成压坯，并在400至1200℃的温度下热处理0.5至8小时。 这些压块可用作乙酸乙烯酯单体生产和乙烯水合中的催化剂或催化剂载体。
-
8.发明授权Process for the production of 3-aminoethyl-3,5,5-trimethylcyclohexyl amine 失效3-氨基乙基-3,5,5-三甲基环己胺的制备方法
公开(公告)号：US5679860A
公开(公告)日：1997-10-21
申请号：US739044
申请日：1996-10-28
IPC分类号： B01J21/06 , C07B61/00 , C07C209/48 , C07C209/52 , C07C211/36 , C07C209/32
CPC分类号： C07C211/36 , C07C209/48 , C07C209/52 , C07C2101/14
摘要： A process for producing 3-aminomethyl-3,5,5-trimethylcyclohexyl amine (isophorone diamine) from isophorone nitrile. Isophorone nitrile is iminated in a first stage and then the reaction mixture is subjected to aminating hydrogenation in a second stage in the presence of a fixed bed hydrogenation catalyst based on Raney cobalt. The fixed bed hydrogenation catalyst is produced in a special manner by mixing a powdery Co--containing Raney alloy with powdery cobalt, sintering the powdery mixture to shaped moldings and then activating by leaching with alkali hydroxide solution. The yield and/or space-time yield in isophorone diamine production can be increased.
摘要翻译： 由异佛尔酮腈生产3-氨基甲基-3,5,5-三甲基环己胺（异佛尔酮二胺）的方法。 在第一阶段中将异佛尔酮腈进行酰化，然后在基于阮内钴的固定床氢化催化剂的存在下，将反应混合物在第二阶段进行氨化氢化。 固定床加氢催化剂以特殊的方式通过将粉末状含钴阮内合金与粉末状钴混合，将粉末状混合物烧结成型成形体，然后通过用碱金属氢氧化物溶液浸出而活化。 可以增加异佛尔酮二胺生产中的产率和/或时空产率。
-
-
-
-
-
-
-
搜索结果
8 条记录 (耗时 0.022 秒)
