B-TYPE IRON SILICATE COMPOSITION AND METHOD FOR REDUCING NITROGEN OXIDES
    2.
    发明申请
    B-TYPE IRON SILICATE COMPOSITION AND METHOD FOR REDUCING NITROGEN OXIDES 有权
    B型铁氧化物组合物和减少氮氧化物的方法

    公开(公告)号:US20140079611A1

    公开(公告)日:2014-03-20

    申请号:US14115379

    申请日:2012-05-17

    IPC分类号: B01J29/88 B01D53/94

    摘要: The present invention relates to a composition including a β-type iron silicate, which includes all or part of iron in a β-type framework structure, and a solid acidic porous inorganic oxide. The present invention is characterized in that the β-type iron silicate is compounded with the porous inorganic oxide having solid acidic properties so that the solid acidic function derived from aluminum of the β-type iron silicate, is reinforced or complemented by the porous inorganic oxide, the individual particles of which are physically isolated from each other. It is preferred that the fluorine content relative to the dry weight of the β-type iron silicate is 400 ppm or less and the crystal particles of the β-type iron silicate have a truncated square bipyramidal morphology. According to the present invention, a composition that is useful as a high-performance catalyst, adsorbent, or the like, can be provided.

    摘要翻译: 本发明涉及一种组合物,它包括一种含有全部或部分铁类骨架结构的铁和硅酸钙,以及固体酸性多孔无机氧化物。 本发明的特征在于,该类型的硅酸铁与具有固体酸性特性的多孔无机氧化物复合,使得源自硅酸钙的铝的固体酸性官能团被多孔 无机氧化物,其各自的颗粒彼此物理隔离。 优选的是,相对于硅酸钙的干重量的氟含量为400ppm以下,并且该类型的硅酸铁的结晶颗粒具有截短的方形双锥体形态。 根据本发明,可以提供可用作高性能催化剂,吸附剂等的组合物。

    Nitrogen oxide-reducing catalyst and method for reducing nitrogen oxide
    3.
    发明授权
    Nitrogen oxide-reducing catalyst and method for reducing nitrogen oxide 有权
    氮氧化物还原催化剂和还原氮氧化物的方法

    公开(公告)号:US07794680B2

    公开(公告)日:2010-09-14

    申请号:US12110833

    申请日:2008-04-28

    摘要: A first catalyst for reducing nitrogen oxides comprising a crystalline silicate containing an iron in β-framework structure wherein a SiO2/Fe2O3 mol ratio is 20-300 and at least 80% of the contained iron is an isolated iron ion Fe3+. A second catalyst for reducing nitrogen oxides comprising a crystalline silicate containing an iron in β-framework structure wherein a SiO2/Fe2O3 mol ratio is 20-300 and log(SiO2/Al2O3) by mol is at least 2. A predominant part of the contained iron is isolated iron ion Fe3+ and at least a part thereof preferably has a tetrahedral coordination. These catalysts have high hydrothermal stability and exhibit enhanced activity for reducing nitrogen oxides by a reaction with a reducing agent such as ammonia, urea or an organic amine in a broad temperature range between lower temperature and higher temperature.

    摘要翻译: 一种用于还原氮氧化物的第一催化剂,包括含有铁的结晶硅酸盐,其中SiO 2 / Fe 2 O 3摩尔比为20-300,所含铁的至少80%为分离的铁离子Fe 3+。 用于还原氮氧化物的第二催化剂,其包含含有铁的结晶硅酸盐,其中SiO 2 / Fe 2 O 3摩尔比为20-300,并且log(SiO 2 / Al 2 O 3)摩尔比为至少2.主要部分为 含铁是分离的铁离子Fe3 +,其至少一部分优选具有四面体配位。 这些催化剂具有高水热稳定性,并且在较低温度和较高温度之间的宽温度范围内通过与还原剂如氨,脲或有机胺的反应来显示出增强的还原氮氧化物的活性。

    NITROGEN OXIDE-REDUCING CATALYST AND METHOD FOR REDUCING NITROGEN OXIDE
    6.
    发明申请
    NITROGEN OXIDE-REDUCING CATALYST AND METHOD FOR REDUCING NITROGEN OXIDE 有权
    氮氧化物还原催化剂和减少氮氧化物的方法

    公开(公告)号:US20090155152A1

    公开(公告)日:2009-06-18

    申请号:US12110833

    申请日:2008-04-28

    摘要: A first catalyst for reducing nitrogen oxides comprising a crystalline silicate containing an iron in β-framework structure wherein a SiO2/Fe2O3 mol ratio is 20-300 and at least 80% of the contained iron is an isolated iron ion Fe3+. A second catalyst for reducing nitrogen oxides comprising a crystalline silicate containing an iron in β-framework structure wherein a SiO2/Fe2O3 mol ratio is 20-300 and log (SiO2/Al2O3) by mol is at least 2. A predominant part of the contained iron is isolated iron ion Fe3+ and at least a part thereof preferably has a tetrahedral coordination. These catalysts have high hydrothermal stability and exhibit enhanced activity for reducing nitrogen oxides by a reaction with a reducing agent such as ammonia, urea or an organic amine in a broad temperature range between lower temperature and higher temperature.

    摘要翻译: 用于还原氮氧化物的第一催化剂,其包含含有β-骨架结构中的铁的结晶硅酸盐,其中SiO 2 / Fe 2 O 3摩尔比为20-300,所含铁的至少80%是分离的铁离子Fe 3+。 用于还原氮氧化物的第二催化剂,其包含含有β-骨架结构中的铁的结晶硅酸盐,其中SiO 2 / Fe 2 O 3摩尔比为20-300,对数(SiO 2 / Al 2 O 3)为至少2.所含有的主要部分 铁是分离的铁离子Fe 3+,并且其至少一部分优选具有四面体配位。 这些催化剂具有高水热稳定性,并且在较低温度和较高温度之间的宽温度范围内通过与还原剂如氨,脲或有机胺的反应来显示出增强的还原氮氧化物的活性。