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17 条记录 (耗时 0.018 秒)

    Process for the preparation of hydrooxydiphenyls
    1.
    发明授权
    Process for the preparation of hydrooxydiphenyls 失效
    制备氢化二苯乙烯的方法

    公开(公告)号：US5248840A

    公开(公告)日：1993-09-28

    申请号：US950619

    申请日：1992-09-24

    申请人： Otto Immel ,  Gerhard Darsow ,  Udo Birkenstock

    发明人： Otto Immel ,  Gerhard Darsow ,  Udo Birkenstock

    IPC分类号： B01J23/656 ,  B01J27/13 ,  C07B61/00 ,  C07C37/07 ,  C07C39/15

    CPC分类号： C07C37/07

    摘要： To prepare hydroxydiphenyls, a compound or a mixture of several compounds consisting of completely or partly hydrogenated hydroxydiphenyl is dehydrogenated catalytically in the gas phase, a catalyst being employed which comprises, as the active constituents, a combination of rhodium and one or more other platinum metal(s) from the group comprising platinum, palladium, ruthenium and iridium, and which comprises, as promoters, one or more alkali metal hydroxides and/or alkali metal sulphates, the support of which comprises chromium and manganese.

    摘要翻译： 为了制备羟基二苯，将由完全或部分氢化的羟基二苯组成的化合物或几种化合物的混合物在气相中催化脱氢，使用的催化剂包括作为活性组分的铑和一种或多种其它铂金属的组合 其包含铂，钯，钌和铱的基团，并且其包含作为助催化剂的一种或多种碱金属氢氧化物和/或碱金属硫酸盐，其载体包含铬和锰。

    Process for the depyrophorization of pyrophoric metal catalysts and catalysts prepared by the process
    2.
    发明授权
    Process for the depyrophorization of pyrophoric metal catalysts and catalysts prepared by the process 失效
    通过该方法制备的自燃金属催化剂和催化剂的去污化方法

    公开(公告)号：US4176092A

    公开(公告)日：1979-11-27

    申请号：US806238

    申请日：1977-06-13

    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

    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。

    Process for the preparation of dialkyl carbonates
    3.
    发明授权
    Process for the preparation of dialkyl carbonates 失效
    制备碳酸二甲酯的方法

    公开(公告)号：US5231213A

    公开(公告)日：1993-07-27

    申请号：US910475

    申请日：1992-07-08

    申请人： Heinz Landscheidt ,  Alexander Klausener ,  Erich Wolters ,  Heinz U. Blank ,  Udo Birkenstock

    发明人： Heinz Landscheidt ,  Alexander Klausener ,  Erich Wolters ,  Heinz U. Blank ,  Udo Birkenstock

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

    CPC分类号： C07C68/00 ,  Y02P20/582

    摘要： Dialkyl carbonates can be prepared by reaction of carbon monoxide with alkyl nitrites in continuous gas phase reaction, in which a platinum metal halide catalyst on aluminum oxides, aluminum oxide hydrates or aluminum hydroxides as support and, if desired, an additive comprising an antimony, bismuth, aluminum, copper, vanadium, niobium, tantalum, tin, iron, cobalt, nickel compound or a mixture of a plurality thereof on this catalyst are used and hydrogen halide is replaced during the course of the reaction batchwise or continuously in at least the amount which is discharged from the reactor together with the reaction mixture. This results in the formation of dialkyl carbonates in almost quantitative selectivity, while the corresponding dialkyl oxalates can not in most cases be detected. The abovementioned supports are characterized by a BET surface area of more than 1 m.sup.2 /g.

    摘要翻译： 碳酸二烷基酯可以通过在连续气相反应中一氧化碳与亚硝酸烷基酯的反应来制备，其中在氧化铝上的铂金属卤化物催化剂，作为载体的氧化铝水合物或氢氧化铝，以及如果需要，包含锑，铋 在该催化剂上使用铝，铜，钒，铌，钽，锡，铁，钴，镍化合物或其多种混合物，并且在反应过程中间歇或连续地以至少量的量替换卤化氢 其与反应混合物一起从反应器排出。 这导致几乎定量选择性形成碳酸二烷基酯，而在大多数情况下相应的草酸二烷基酯不能被检测到。 上述载体的特征在于BET表面积大于1m 2 / g。

    Multichamber-candle filter element
    9.
    发明授权
    Multichamber-candle filter element 失效
    多功能过滤器元件

    公开(公告)号：US5135665A

    公开(公告)日：1992-08-04

    申请号：US678819

    申请日：1991-04-01

    申请人： Udo Birkenstock ,  Wolfgang Gay ,  Glenn Hohle

    发明人： Udo Birkenstock ,  Wolfgang Gay ,  Glenn Hohle

    IPC分类号： B01D29/33 ,  B01D29/15

    CPC分类号： B01D29/15

    摘要： Multichamber-candle filter element for filtration of a residual volume of a suspension with rapidly settling solid components, includes at least two chambers (1,2) positioned in succession above each other, a lowest of the chambers being from 1/3 to 1/10 of a total length of the candle filter element, and a separate filtrate delivery pipe (8,9) extending into each of the chambers to provide a separate filtrate outlet for each chamber and a partition member separating each of the chambers from each other in a fluid-tight manner. The multi-candle filter element also has a fluid-tight cover plate (6) and a fluid-tight bottom plate (3) and fluid permeable walls (14,15).

    摘要翻译： 用于过滤残留体积的具有快速沉降的固体组分的悬浮液的多室 - 烛式过滤元件包括彼此相继定位的至少两个室（1,2），最低室为1/3至1 / 10和全部长度的蜡烛过滤元件，以及分别延伸到每个室中的滤液输送管（8,9），以为每个室提供单独的滤液出口，以及分隔构件将每个室彼此分隔开 流畅的方式。 多蜡烛过滤元件还具有流体密封的盖板（6）和流体密封的底板（3）和流体可渗透的壁（14,15）。

    Supported catalysts and process for their preparation
    10.
    发明授权
    Supported catalysts and process for their preparation 失效
    负载催化剂及其制备方法

    公开(公告)号：US4407733A

    公开(公告)日：1983-10-04

    申请号：US284752

    申请日：1981-07-20

    申请人： Udo Birkenstock ,  Herbert Schmidt

    发明人： Udo Birkenstock ,  Herbert Schmidt

    IPC分类号： B01J23/40 ,  B01J23/44 ,  B01J23/89 ,  B01J35/10 ,  B01J37/02 ,  B01J37/03 ,  C07C29/20 ,  C07C45/00 ,  C07C209/36 ,  B01J23/58 ,  B01J23/78

    CPC分类号： C07C209/36 ,  B01J23/40 ,  B01J37/0201 ,  B01J37/03 ,  C07C29/20 ,  C07C45/006 ,  B01J23/44 ,  B01J23/89 ,  B01J35/10 ,  B01J35/1014 ,  C07C2101/14

    摘要： A process for the preparation of a supported catalyst containing a catalytically active metal such as a noble metal is disclosed wherein the supported catalyst is prepared by initially contacting the inert support with a base and disposing an amount of base in the support corresponding to 0.01 to 50 gram equivalents of base per gram equivalent of catalytically active metal to be deposited thereon, drying the so-treated support to a residual moisture content of less than 10 percent of the maximum absorbency of the support and thereafter impregnating the same with a salt solution of a catalytically active metal, e.g., a salt of a catalytically active noble metal. The inert support is one having a BET surface area of less than 20 square meters per gram. The catalyst is useful in hydrogenation, dehydrogenation, hydrogenolysis, oxidation, polymerization, isomerization or cyclization reactions.

    摘要翻译： 公开了一种制备含有催化活性金属如贵金属的载体催化剂的方法，其中负载型催化剂是通过使惰性载体与碱初始接触并在载体中配置一定量的碱而制备的，对应于0.01至50 将每克克当量的待沉积的催化活性金属的碱当量，干燥经处理的载体至小于载体最大吸收度的10％的残余水分含量，然后用 催化活性金属，例如催化活性贵金属的盐。 惰性支持体的BET表面积小于20平方米/克。 该催化剂可用于氢化，脱氢，氢解，氧化，聚合，异构化或环化反应。