利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

53 条记录 (耗时 0.019 秒)

    Catalyst for the purification of exhaust gases of internal combustion engines
    3.
    发明授权
    Catalyst for the purification of exhaust gases of internal combustion engines 失效
    用于净化内燃机废气的催化剂

    公开(公告)号：US4294726A

    公开(公告)日：1981-10-13

    申请号：US120172

    申请日：1980-02-11

    申请人： Alfred Bozon ,  Edgar Koberstein ,  Hans-Dieter Pletka ,  Herbert Volker ,  Eduard Lakatos

    发明人： Alfred Bozon ,  Edgar Koberstein ,  Hans-Dieter Pletka ,  Herbert Volker ,  Eduard Lakatos

    IPC分类号： B01D53/94 ,  B01J23/89 ,  B01J37/02 ,  F02B1/04 ,  B01J21/06 ,  B01J23/10

    CPC分类号： B01D53/945 ,  B01J23/8933 ,  B01J37/024 ,  F02B1/04 ,  Y02T10/22

    摘要： A three-way catalyst is described for the purification of automobile exhaust gases formed of an active substance of platinum and rhodium and possibly base metal(s) at a certain weight ratio between the two noble metals and at a certain atomic ratio between the noble and the base metal, which are precipitated onto active aluminum oxide containing certain quantities of CeO.sub.2, ZrO.sub.2 and Fe.sub.2 O.sub.3, and whereby the catalyst is obtained by impregnating active aluminum oxide, possibly stabilized with alkaline earth metal, with a solution of cerium, zirconium and iron salt which is thereupon calcined in air at 500.degree.-700.degree. C. and then treated after application of an impregnation of salts of the active substance components in a gas current containing hydrogen at temperatures below 650.degree. C.

    摘要翻译： 描述了一种三元催化剂，用于净化由铂和铑的活性物质和可能的贱金属以一定的重量比形成的汽车废气，并以一定的原子比在贵金属和 贱金属，其沉积在含有一定量的CeO 2，ZrO 2和Fe 2 O 3的活性氧化铝上，并且由此通过用碱土金属浸渍活性氧化铝，用铈，锆和铁盐溶液浸渍得到催化剂 然后在空气中在500〜700℃下煅烧，然后在温度低于650℃的含氢气体中浸渍活性物质成分的盐后进行处理。

    Process for the application of a catalytically active coating on a catalyst carrier
    4.
    发明授权
    Process for the application of a catalytically active coating on a catalyst carrier 失效
    在催化剂载体上施加催化活性涂层的方法

    公开(公告)号：US4218341A

    公开(公告)日：1980-08-19

    申请号：US868017

    申请日：1978-01-09

    申请人： Eduard Lakatos ,  Edgar Koberstein ,  Jorg Hensel ,  Alfred Bozon

    发明人： Eduard Lakatos ,  Edgar Koberstein ,  Jorg Hensel ,  Alfred Bozon

    IPC分类号： B01J23/42 ,  B01J23/46 ,  B01J35/08 ,  B01J37/00 ,  B01J37/02 ,  B01J23/08

    CPC分类号： B01J23/464 ,  B01J23/42 ,  B01J37/0018 ,  B01J37/0203 ,  B01J37/0207 ,  B01J37/0217 ,  B01J35/08

    摘要： An improved process for applying a coating or film of at least one catalytically active element to the external surface of a porous catalyst carrier having a large surface area by contacting said catalyst carrier with a solution of said at least one catalytically active element, wherein the improvement comprises:(1). Contacting said catalyst carrier with an organic liquid, wherein the saturation of said catalyst carrier is not exceeded;(2). Adding a solution of said at least one catalytically active element to said catalyst carrier; and(3). Heating said catalyst carrier to remove liquid therefrom.

    摘要翻译： 通过使所述催化剂载体与所述至少一种催化活性元素的溶液接触，将至少一种催化活性元素的涂层或膜施加到具有大表面积的多孔催化剂载体的外表面的改进方法，其中改进 包括：（1）。 将所述催化剂载体与有机液体接触，其中不超过所述催化剂载体的饱和度; （2）。 向所述催化剂载体中加入所述至少一种催化活性元素的溶液; 和（3）。 加热所述催化剂载体以从其中除去液体。

    Exhaust gas purifying catalyst and process of making and using same
    6.
    发明授权
    Exhaust gas purifying catalyst and process of making and using same 失效
    废气净化催化剂及其制造和使用过程

    公开(公告)号：US4034060A

    公开(公告)日：1977-07-05

    申请号：US685958

    申请日：1976-05-13

    申请人： Edgar Koberstein ,  Eduard Lakatos

    发明人： Edgar Koberstein ,  Eduard Lakatos

    IPC分类号： B01D53/86 ,  B01J23/86 ,  B01J37/00 ,  C01B21/20 ,  C01B31/18

    CPC分类号： B01D53/86 ,  B01J23/86 ,  B01J37/0018

    摘要： A process for preparing an oxidic, carrier catalyst comprising at least one heavy metal compound as active component, said process comprising providing a carrier comprising a temperature resistant material with a catalytically active coating by intensively mixing said carrier with a binding agent, and at least one pulverulent, oxidic heavy metal compound or with a pulverulent mass containing at least one of said oxidic heavy metal compounds or at least one hydroxyl group-containing precursor of said heavy metal compounds, and subsequently heating the resulting mass to remove said binding agent. The catalyst and the process of using the catalyst in the purification of exhaust gases are provided.

    摘要翻译： 一种制备包含至少一种重金属化合物作为活性组分的氧化性载体催化剂的方法，所述方法包括通过将所述载体与结合剂强烈混合而提供包含具有催化活性涂层的耐温材料的载体，以及至少一种 粉状，氧化重金属化合物或含有至少一种所述氧化重金属化合物或所述重金属化合物的至少一种含羟基的前体的粉状物质，随后加热所得物质以除去所述粘合剂。 提供催化剂和在废气净化中使用催化剂的方法。

    Catalyst for purification of exhaust gases and processes for its production and use
    7.
    发明授权
    Catalyst for purification of exhaust gases and processes for its production and use 失效
    用于净化废气的催化剂及其生产和使用的方法

    公开(公告)号：US4048098A

    公开(公告)日：1977-09-13

    申请号：US439174

    申请日：1974-02-04

    申请人： Edgar Koberstein ,  Eduard Lakatos

    发明人： Edgar Koberstein ,  Eduard Lakatos

    IPC分类号： B01D53/94 ,  B01J21/02 ,  B01J23/40 ,  B01J23/64 ,  B01J23/652 ,  B01J23/656 ,  B01J23/89 ,  B01J21/00 ,  B01J21/04 ,  B01J21/08 ,  B01J21/12 ,  B01J23/74

    CPC分类号： B01D53/945 ,  B01J23/40 ,  B01J23/652 ,  B01J23/89 ,  Y02T10/22

    摘要： A carrier catalyst comprises as the catalytically active component an intermetallic system of at least three metals, wherein at least one of said three metals is selected from the group consisting of (a) ruthenium, rhodium, palladium and platinum, and wherein at least one of said three metals is a base metal selected from the group consisting of (b) aluminum, titanium, chromium, manganese, cobalt and nickel, and further wherein said group (a) metals and said group (b) metals are in an atomic ratio of about 1:4 to 1:1, provided that, when said system contains platinum, rhodium and at least one of said base metals, the atomic ratio is 1:4 to 1:2.4. The catalyst can also contain aluminum.

    摘要翻译： 载体催化剂包含至少三种金属作为催化活性组分的金属间系统，其中所述三种金属中的至少一种选自（a）钌，铑，钯和铂，并且其中至少一种 所述三种金属是选自（b）铝，钛，铬，锰，钴和镍的贱金属，并且其中所述基团（a）金属和所述基团（b）金属的原子比为 约1：4至1：1，条件是当所述体系含有铂，铑和至少一种所述贱金属时，原子比为1:4至1:2.4。 催化剂也可以含有铝。

    Device and method for the continuous measurement of the ammonia concentration in gases in the ppm range
    9.
    发明授权
    Device and method for the continuous measurement of the ammonia concentration in gases in the ppm range 失效
    在PPM范围内连续测量气体浓度的装置和方法

    公开(公告)号：US5131260A

    公开(公告)日：1992-07-21

    申请号：US676707

    申请日：1991-03-29

    申请人： Reinhold Brand ,  Bernd Engler ,  Wolfgang Honen ,  Edgar Koberstein

    发明人： Reinhold Brand ,  Bernd Engler ,  Wolfgang Honen ,  Edgar Koberstein

    IPC分类号： G01N31/00 ,  G01N1/22 ,  G01N1/34 ,  G01N1/40 ,  G01N33/00

    CPC分类号： G01N1/405 ,  G01N1/2258 ,  G01N33/0054 ,  G01N2001/2217 ,  G01N2001/2282 ,  G01N2001/4033

    摘要： A device for the continuous measurement of the ammonia concentration in gases in the ppm range includes a columnar absorption vessel (1) with a hemispherical bottom (4). The bottom of the column includes an overflow (3) and an outlet (5). The gas introduction pipe (7,8) empties above the bottom (4) and below a sieve bottom (6) arranged in the column (1). A packing material (10) rests on the sieve bottom (6), which packing (10) essentially fills the absorption column (1). A cooling part (11) extends from the absorption column (1). The cooling part (11) includes a cooling zone (15) and a gas collection space (16) above it with a closable connection piece (13). A pipe (14), which may include a serrated crown on each end, runs from the gas collecting space (16) downward in a cooled manner to the packing 10. The liquid absorption agent is introduced through a lateral connection piece (18) into the gas collection space (16). For the measurement of ammonia concentration, a certain volume flow of the gas to be measured is washed in a countercurrent flow with the absorption agent, and the NH.sub.3 content is determined in a part of the ammonia containing absorption agent. The volume flow rate of the absorption agent and of the gas from which NH.sub.3 has been removed is measured (the latter being dried), and the ammonia concentration is thereby calculated.

    摘要翻译： 在ppm范围内连续测量气体中的氨浓度的装置包括具有半球形底部（4）的柱状吸收容器（1）。 塔的底部包括溢流（3）和出口（5）。 气体导入管（7,8）在布置在塔（1）中的底部（4）和下方的筛底（6）之上排空。 包装材料（10）搁置在筛底（6）上，该填料（10）基本上填充吸收塔（1）。 冷却部件（11）从吸收塔（1）延伸。 冷却部件（11）在其上方包括一个冷却区（15）和一个气体收集空间（16），并具有可关闭的连接件（13）。 可以在每个端部包括锯齿状冠的管道（14）从气体收集空间（16）以冷却的方式向下延伸到填料10.液体吸收剂通过横向连接件（18）引入 气体收集空间（16）。 为了测量氨浓度，将要测量的气体的一定体积流量与吸收剂以逆流流动洗涤，并且在含氨吸收剂的一部分中测定NH 3含量。 测量吸收剂和从其中除去NH 3的气体的体积流量（后者被干燥），由此计算氨浓度。