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11 条记录 (耗时 0.028 秒)

    Silver-deposited catalyst for production of ethylene oxide
    2.
    发明授权
    Silver-deposited catalyst for production of ethylene oxide 失效
    用于生产环氧乙烷的银沉积催化剂

    公开(公告)号：US4812437A

    公开(公告)日：1989-03-14

    申请号：US46177

    申请日：1987-05-05

    申请人： Naohiro Nojiri ,  Yukio Sakai ,  Tomoatsu Iwakura

    发明人： Naohiro Nojiri ,  Yukio Sakai ,  Tomoatsu Iwakura

    IPC分类号： C07D301/10 ,  B01J23/66 ,  B01J27/10 ,  B01J21/12 ,  B01J23/02 ,  B01J23/04 ,  B01J23/50

    CPC分类号： C07D301/10 ,  B01J23/66 ,  Y02P20/52

    摘要： A silver-deposited catalyst for production of ethylene oxide by oxidizing ethylene, having high selectivity and long life, is provided by this invention. The catalyst is characterized by a combination of (a) catalyst ingredients comprising silver and a cation component selected at least from sodium, potassium, rubidium and cesium, and (b) a carrier composed mainly of alpha-alumina, said carrier having a surface area of 0.6 to 2 m.sup.2 /g, a water absorption of 20 to 50%, a silica content of 0.5 to 12% by weight, a silica content, per m.sup.2 /g of surface area, of 0.5 to 12, preferably 1 to 8, and a sodium content of 0.08 to 2% by weight.

    摘要翻译： 通过本发明提供了通过氧化乙烯生产环氧乙烷的银沉积催化剂，具有高选择性和长寿命。 催化剂的特征在于（a）包含银和至少选自钠，钾，铷和铯的阳离子组分的催化剂成分和（b）主要由α-氧化铝组成的载体的组合，所述载体具有表面积 为0.6〜2m 2 / g，吸水率为20〜50％，二氧化硅含量为0.5〜12重量％，二氧化硅含量/ m 2 / g表面积为0.5〜12，优选为1〜8， 钠含量为0.08〜2重量％。

    Method for producing ethylene oxide
    3.
    发明授权
    Method for producing ethylene oxide 失效
    生产环氧乙烷的方法

    公开(公告)号：US4642360A

    公开(公告)日：1987-02-10

    申请号：US782178

    申请日：1985-10-01

    申请人： Naohiro Nojiri ,  Yukio Sakai

    发明人： Naohiro Nojiri ,  Yukio Sakai

    IPC分类号： C07D301/10 ,  B01J8/00 ,  B01J8/02 ,  C04B35/18 ,  C07D301/08

    CPC分类号： B01J8/008 ,  C04B35/18 ,  C07D301/08

    摘要： A packing material for a reactor for producing ethylene oxide by the catalytic oxidation of ethylene in the presence of molecular oxygen, wherein the packing material is used at the inlet side of a catalyst layer of the reactor, is silica-alumina containing 10 to 8 wt. % of silica, and is produced by sintering the silica-alumina at 1200.degree. to 1500.degree. C.

    摘要翻译： 用于在分子氧存在下通过乙烯的催化氧化生产环氧乙烷的反应器的包装材料，其中包装材料在反应器的催化剂层的入口侧使用，是包含10至8重量％的二氧化硅 - 氧化铝 。 的二氧化硅，并且通过在1200℃至1500℃下烧结二氧化硅 - 氧化铝来制备。

    Silver catalyst for production of ethylene oxide from ethylene
    4.
    发明授权
    Silver catalyst for production of ethylene oxide from ethylene 失效
    用于从乙烯生产环氧乙烷的银催化剂

    公开(公告)号：US4786624A

    公开(公告)日：1988-11-22

    申请号：US17686

    申请日：1987-02-24

    申请人： Naohiro Nojiri ,  Yukio Sakai

    发明人： Naohiro Nojiri ,  Yukio Sakai

    IPC分类号： B01J23/50 ,  B01J23/66 ,  B01J23/68 ,  C07D301/10 ,  B01J23/04 ,  B01J27/06

    CPC分类号： C07D301/10 ,  B01J23/50 ,  B01J23/66 ,  B01J23/68 ,  B01J23/681 ,  Y02P20/52

    摘要： A catalyst for the production of ethylene oxide from ethylene, said catalyst comprising a porous carrier composed of a molded article of a refractory material and at least silver grains deposited on the carrier, wherein(A) silver is distributed on the outside surface of the carrier and on the inner surfaces of the pores of the carrier,(B) silver grains distributed on the inner surfaces of the pores of the carrier have an average diameter of 0.05 to 0.4 micron, and(C) the loading (S) of silver on the outside surface layer of the catalyst and the loading (I) of silver on the innermost layer of the catalyst satisfy the following expressionI.gtoreq.0.65S; and a process for producing a catalyst for the production of ethylene oxide from ethylene, which comprises impregnating an aqueous solution containing a silver salt and an amine as a complex forming agent in a porous carrier composed of a molded article of a refractory material, and heating the carrier with superheated steam to deposit silver on the carrier.

    Silver catalyst for production of ethylene oxide from ethylene and process for producing the catalyst
    7.
    发明授权
    Silver catalyst for production of ethylene oxide from ethylene and process for producing the catalyst 失效
    用于从乙烯生产环氧乙烷的银催化剂和用于生产催化剂的方法

    公开(公告)号：US4690913A

    公开(公告)日：1987-09-01

    申请号：US767831

    申请日：1985-08-20

    申请人： Naohiro Nojiri ,  Yukio Sakai

    发明人： Naohiro Nojiri ,  Yukio Sakai

    IPC分类号： B01J23/50 ,  B01J23/66 ,  B01J23/68 ,  C07D301/10 ,  B01J23/02 ,  B01J23/04

    CPC分类号： C07D301/10 ,  B01J23/50 ,  B01J23/66 ,  B01J23/68 ,  B01J23/681 ,  Y02P20/52

    摘要： A catalyst for the production of ethylene oxide from ethylene, said catalyst comprising a porous carrier composed of a molded article of a refractory material and at least silver grains deposited on the carrier, wherein(A) silver is distributed on the outside surface of the carrier and on the inner surfaces of the pores of the carrier,(B) silver grains distributed on the inner surfaces of the pores of the carrier have an average diameter of 0.05 to 0.4 micron, and(C) the loading (S) of silver on the outside surface layer of the catalyst and the loading (I) of silver on the innermost layer of the catalyst satisfy the following expressionI.gtoreq.0.65S; and a process for producing a catalyst for the production of ethylene oxide from ethylene, which comprises impregnating an aqueous solution containing a silver salt and an amine as a complex forming agent in a porous carrier composed of a molded article of a refractory material, and heating the carrier with superheated steam to deposit silver on the carrier.

    摘要翻译： 一种用于从乙烯生产环氧乙烷的催化剂，所述催化剂包括由耐火材料的模制品和沉积在载体上的至少银颗粒构成的多孔载体，其中（A）银分布在载体的外表面上 并且在载体的孔的内表面上，（B）分布在载体孔的内表面上的银颗粒的平均直径为0.05至0.4微米，（C）银的负载量（S） 催化剂的外表面层和催化剂最内层上的银负载量（I）满足下式I> = 0.65S; 以及由乙烯制造环氧乙烷的催化剂的制造方法，其特征在于，在由耐火材料成形体构成的多孔载体中浸渍含有银盐和胺作为络合物形成剂的水溶液，加热 具有过热蒸汽的载体在载体上沉积银。

    Electrolytic treatment of waste water
    9.
    发明授权
    Electrolytic treatment of waste water 失效
    废水电解处理

    公开(公告)号：US4014766A

    公开(公告)日：1977-03-29

    申请号：US625099

    申请日：1975-10-23

    申请人： Yoshihisa Watanabe ,  Naohiro Nojiri

    发明人： Yoshihisa Watanabe ,  Naohiro Nojiri

    IPC分类号： C02F1/461 ,  C02F1/463 ,  C02F1/48 ,  C02F1/72 ,  C02C5/12 ,  C25C1/10

    CPC分类号： C02F1/488 ,  C02F1/46114 ,  C02F1/463 ,  C02F1/72 ,  C02F2101/22

    摘要： Waste water is subjected to electrolysis in an electrolytic cell having an anode comprising an insoluble central electrode and a body of particulate iron pieces disposed therearound and in electrical contact therewith, whereby impurities in the waste water become occluded within a floc of iron hydroxide formed by electrolytic dissolution of the iron pieces, and the floc containing the impurities is subjected to oxidation processing and is thereafter separated. A magnetic field can be applied to the waste water thus treated thereby to promote sedimentation of the floc.

    摘要翻译： 废水在具有阳极的电解槽中进行电解，该阳极包含不溶性中心电极和设置在其周围并与其电接触的颗粒状铁屑体，由此废水中的杂质被吸收在由电解质形成的氢氧化铁絮凝物中 将铁片和含有杂质的絮状体的溶解进行氧化处理，然后分离。 可以对这样处理的废水施加磁场，从而促进絮凝物的沉降。