Catalyst for Producing Ethylene Oxide, Process for Producing the Catalyst and Process for Producing Ethylene Oxide
    3.
    发明申请
    Catalyst for Producing Ethylene Oxide, Process for Producing the Catalyst and Process for Producing Ethylene Oxide 有权
    用于生产环氧乙烷的催化剂,用于生产催化剂的方法和用于生产环氧乙烷的方法

    公开(公告)号:US20090192324A1

    公开(公告)日:2009-07-30

    申请号:US12083876

    申请日:2007-03-30

    摘要: Disclosed is a catalyst for ethylene oxide production which is used for producing ethylene oxide from ethylene. This catalyst is composed of at least silver (Ag), caesium (Cs), rhenium (Re) and a carrier, and improved especially in selectivity. Specifically disclosed is a catalyst for ethylene oxide production, which is used for producing ethylene oxide from ethylene and composed of at least silver (Ag), caesium (Cs), rhenium (Re) and a carrier. If necessary, an alkali metal is loaded onto the carrier as a pretreatment, and then Ag, Cs and Re are loaded onto the carrier, thereby obtaining the catalyst. The carrier has a specific surface area of 0.6-3.0 m2/g, and a weight ratio between the silicon (Si) content and the sodium (Na) content in terms of SiO2/Na2O of 2-50, The Re content (based the carrier) is 170-600 ppm per 1 m2/g or the specific surface area of the carrier, and the molar ratio Cs/Re is 0.3-19.

    摘要翻译: 公开了用于从乙烯生产环氧乙烷的环氧乙烷生产催化剂。 该催化剂由至少银(Ag),铯(Cs),铼(Re)和载体组成,特别是在选择性上得到改善。 具体公开了用于生产环氧乙烷的催化剂,其用于从乙烯生产环氧乙烷,并且至少由银(Ag),铯(Cs),铼(Re)和载体组成。 如果需要,将碱金属作为预处理装载到载体上,然后将Ag,Cs和Re加载到载体上,从而获得催化剂。 载体的比表面积为0.6-3.0m 2 / g,SiO 2 / Na 2 O的硅(Si)含量和钠(Na)含量之间的重量比为2-50,Re含量(以 载体)每1m 2 / g为170-600ppm或载体的比表面积,并且Cs / Re的摩尔比为0.3-19。

    Metal/hydrogen alkaline storage battery
    6.
    发明授权
    Metal/hydrogen alkaline storage battery 失效
    金属/氢碱性蓄电池

    公开(公告)号:US4636445A

    公开(公告)日:1987-01-13

    申请号:US841058

    申请日:1986-03-17

    IPC分类号: H01M2/02 H01M4/24 H01M10/34

    摘要: The present invention is directed to a metal/hydrogen alkaline storage battery, which comprises a positive electrode of a metal oxide, a negative electrode of a hydrogen-storage alloy, and a separator impregnated with an alkaline electrolyte and placed between the positive and negative electrodes. The electrodes and separator are housed within a sealed type battery casing. The casing has a device for maintaining the pressure in the battery in a selected range of from an equilibrium pressure required for absorbing hydrogen by the negative electrode to about 20 kg/cm.sup.2.

    摘要翻译: 本发明涉及一种金属/氢碱性蓄电池,其包括金属氧化物的正极,储氢合金的负极和浸渍有碱性电解质的隔板,并且放置在正极和负极之间 。 电极和分离器容纳在密封型电池壳体内。 壳体具有用于将电池中的压力维持在从负极吸收氢所需的平衡压力至约20kg / cm 2的选定范围内的装置。

    Catalyst for producing ethylene oxide, process for producing the catalyst and process for producing ethylene oxide
    8.
    发明授权
    Catalyst for producing ethylene oxide, process for producing the catalyst and process for producing ethylene oxide 有权
    用于生产环氧乙烷的催化剂,用于生产催化剂的方法和用于生产环氧乙烷的方法

    公开(公告)号:US08716175B2

    公开(公告)日:2014-05-06

    申请号:US12083876

    申请日:2007-03-30

    IPC分类号: B01J23/48

    摘要: There is provided a catalyst for producing ethylene oxide from ethylene which is composed of at least silver (Ag), cesium (Cs), rhenium (Re) and a carrier, and can be improved, in particular, in selectivity.The present invention relates to a catalyst for producing ethylene oxide from ethylene, comprising at least silver (Ag), cesium (Cs), rhenium (Re) and a carrier, said catalyst being produced by optionally pretreating the carrier to support an alkali metal thereon and then supporting Ag, Cs and Re on the carrier, wherein the carrier has a specific surface area of 0.6 to 3.0 m2/g and a weight ratio of a silicon (Si) content to a sodium (Na) content of 2 to 50 in terms of SiO2/Na2O; a content of Re in the catalyst is 170 to 600 ppm per 1 m2/g of the specific surface area of the carrier on the basis of a weight of the carrier; and a molar ratio of Cs to Re in the catalyst is 0.3 to 19.

    摘要翻译: 提供了由至少由银(Ag),铯(Cs),铼(Re)和载体构成的由乙烯生产环氧乙烷的催化剂,特别是可选地提高。 本发明涉及一种由乙烯生产环氧乙烷的催化剂,其至少包含银(Ag),铯(Cs),铼(Re)和载体,所述催化剂是通过任选地预处理载体以在其上负载碱金属而制备的 然后在载体上负载Ag,Cs和Re,其中载体的比表面积为0.6〜3.0m 2 / g,硅(Si)含量与钠(Na)含量的重量比为2〜50 SiO 2 / Na 2 O; 基于载体的重量,催化剂中Re的含量为每1m 2 / g载体的比表面积为170〜600ppm; 催化剂中Cs与Re的摩尔比为0.3〜19。

    Preservation device for lead storage battery
    10.
    发明授权
    Preservation device for lead storage battery 失效
    铅蓄电池保存装置

    公开(公告)号:US4619873A

    公开(公告)日:1986-10-28

    申请号:US822671

    申请日:1986-01-22

    IPC分类号: H01M10/42 H01M2/10

    CPC分类号: H01M10/42

    摘要: The present invention discloses a preservation device for lead storage battery comprising: a lead storage battery including at least one negative plate, at least one positive plate, at least one separator between said negative and positive plates, an electrolyte holdingly impregnated by said negative & positive plates and said separator and limited in amount such that substantially there is no electrolyte liberated from said negative & positive plates and said separator, and external terminals having one ends respectively connected to said negative and positive plates and the other ends exposed to the outside of the lead storage battery vessel; and an impedance means connected between said external terminals of said lead storage battery during its preservation.Such preservation device permits to prevent a battery preserved in such device from being decreased in capacity without requiring troublesome maintenance such as supplementary charging at regular intervals, even if it is preserved for a long period of time.

    摘要翻译: 本发明公开了一种铅蓄电池保存装置,包括:铅蓄电池,包括至少一个负极板,至少一个正极板,所述负极板和正极板之间的至少一个隔板,由所述负极和正极保持浸渍的电解液 板和所述隔板,并且其数量受到限制,使得基本上不存在从所述负极板和所述隔板中释放出的电解质,并且具有一端的外部端子分别连接到所述负极板和正极板,而另一端部暴露于所述隔板的外部 铅蓄电池容器; 以及在其保存期间连接在所述铅蓄电池的所述外部端子之间的阻抗装置。 这种保存装置允许防止这种装置中保存的电池的容量降低,而不需要麻烦的维护,例如定期间隔的补充充电,即使长时间保存。