CATALYST FOR SELECTIVE OXIDATION OF AMMONIA WITH MOLECULAR OXYGEN TO NITROGEN MONOXIDE
    8.
    发明申请
    CATALYST FOR SELECTIVE OXIDATION OF AMMONIA WITH MOLECULAR OXYGEN TO NITROGEN MONOXIDE 审中-公开
    用于选择性氧化分子氧的硝酸氧化催化剂

    公开(公告)号:WO01049603A1

    公开(公告)日:2001-07-12

    申请号:PCT/PL2000/000096

    申请日:2000-12-13

    CPC classification number: C01B21/265 B01J23/34

    Abstract: The catalyst is a mixed oxide system prepared by hydrothermal oxidation of gelatine mixture obtained by way of precipitation of metal hydroxide forms from solutions of their salts, which system comprises manganese, magnesium or aluminium or zinc or calcium oxides or a mixture thereof, and cerium oxide doted with an activator in amount of 0-0,5 %. The inventive catalyst may be used in processes of selective oxidation of ammonia with molecular oxygen. The catalyst is active and high selective with respect to N2O at temperatures 140-240 DEG C, and maintains its stable activity during the whole time of performing the process.

    Abstract translation: 催化剂是通过水热氧化明胶混合物制备的混合氧化物系统,其通过从其盐的溶液中沉淀金属氢氧化物形式获得,该体系包含锰,镁或铝或锌或钙或其混合物,以及氧化铈 以0-0.5%的量激活剂。 本发明的催化剂可用于与分子氧选择性氧化氨的方法中。 该催化剂在140-240℃的温度下对N2O具有活性且选择性高,并且在整个工艺过程中保持其稳定的活性。

    METHOD FOR REDUCING NITROUS OXIDE IN GASES AND CORRESPONDING CATALYSTS
    9.
    发明申请
    METHOD FOR REDUCING NITROUS OXIDE IN GASES AND CORRESPONDING CATALYSTS 审中-公开
    在气体和对应催化剂中还原氧化亚氮的方法

    公开(公告)号:WO99064139A1

    公开(公告)日:1999-12-16

    申请号:PCT/FR1999/001271

    申请日:1999-05-31

    Abstract: The invention concerns a method which consists in selectively destroying nitrous oxide at high temperature on catalysts consisting of refractory oxide agglomerates (alumina or zirconium) having intergranular porosity impregnated with a zirconium salt. The method is useful for treating gases in workshops producing nitric acid. The invention is also useful, using specific initiators, for treating gases rich in N>2

    Abstract translation: 本发明涉及一种方法,其包括在高温下选择性地破坏一氧化二氮的催化剂,其由具有浸渍锆盐的晶间孔隙的难熔氧化物附聚物(氧化铝或锆)组成。 该方法可用于处理生产硝酸的车间中的气体。 本发明也可用于使用特定的引发剂处理富含有机化合物的硝酸氧化产生的N 2 O 3的气体。

    CATALYTIC MEMBER FOR CONVERTING AMMONIA
    10.
    发明申请
    CATALYTIC MEMBER FOR CONVERTING AMMONIA 审中-公开
    用于转换氨的催化剂

    公开(公告)号:WO99029425A1

    公开(公告)日:1999-06-17

    申请号:PCT/RU1998/000398

    申请日:1998-11-25

    Abstract: Honeycomb structure for ammonia conversion based on non-platinum catalyst, formed as a layer of prizm-like elements joined together along their lateral sides without clearances in which equivalent hydrolyc diameter of prizm-like element and altitude thereof equal accordingly 4-100 and 2-75 of hydrolyc diameters of honeycomb structure's channel. Honeycomb structure in which prizm-like element's basis, is triangle, tetrahedral or hexahedral figure. Honeycomb structure in which is made of materials with one of the following compositions: Fe2O3-92 and Cr2O3-8%; Fe2O3-89.5, ZrO2-5, MgO-5, ZnBaO-0.5%; Fe2O3-79, Al2O3 -20, MgO-1%; perovskit (Ca0.1La0.9MnO3)- 90. Al2O3-8, SiO2-2%.

    Abstract translation: 基于非铂催化剂的氨转化的蜂窝结构,形成为沿着它们的侧面连接在一起的普通级元件层,其间没有间隙,其中类似于类似元素的等效水解直径和高度等于4-100和2- 75蜂窝结构通道的水解直径。 蜂窝结构,其中prizm样元素的基础,是三角形,四面体或六面体图。 蜂窝结构由以下成分之一的材料制成:Fe2O3-92和Cr2O3-8%; Fe2O3-89.5,ZrO2-5​​,MgO-5,ZnBaO-0.5%; Fe2O3-79,Al2O3 -20,MgO-1%; 钙钛矿(Ca0.1La0.9MnO3)-90.Al2O3-8,SiO2-2%。

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