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    • 3. 发明公开
    • FILTER ZUR ENTFERNUNG VON PARTIKELN AUS EINEM GASSTROM SOWIE VERFAHREN ZU SEINER HERSTELLUNG
    • EP2032237A1
    • 2009-03-11
    • EP07727978.4
    • 2007-04-11
    • Robert Bosch GmbH
    • REINSCH, BerndJOCKEL, JoergTHUENER, LarsKRUSE, MatthiasMATTERN, AndreasOSEMANN, Christoph
    • B01D53/94
    • B01D53/944B01D2255/206B01D2255/20707B01D2255/20715B01D2255/20723B01D2255/20776B01D2255/2092B01D2255/30B01D2255/50B01D2258/012
    • The invention relates to a filter for removing particles from a gas stream, in particular for removing soot particles from an exhaust gas stream of an internal combustion engine, with a filter body made of a ceramic filter substrate, wherein the filter substrate is coated. The coating contains at least one of the following substances: (a) at least one aluminum oxide selected from alpha-, gamma-, delta- and theta aluminum oxides, (b) an aluminum oxyhydrate doped with silicon dioxide, at least one oxide of a metal of the third to fifth subgroups, at least one oxide of a lanthanide including lanthanum or a mixture of one or more of these oxides, (c) silicon dioxide or high-silicon zeolite, or (d) titanium dioxide doped with at least one oxide of a metal from the third to sixth subgroups or with an oxide of a lanthanide including lanthanum, (e) a mixture of zirconium dioxide with at least one oxide of a metal from the third to fifth subgroups, at least one oxide of a lanthanide including lanthanum, or a mixture of one or more of these oxides.
    • 本发明涉及一种用于从气流中除去颗粒的过滤器,特别是用于从内燃机的废气流中除去煤烟颗粒的过滤器,其中过滤器主体由陶瓷过滤器基底制成,其中过滤器基底被涂覆。 该涂层含有至少一种以下物质:(a)至少一种选自α-,γ-,δ-和θ-氧化铝的氧化铝,(b)掺杂有二氧化硅的铝氧水合物,至少一种 第三至第五小组的金属,至少一种包含镧的镧系元素的氧化物或这些氧化物中的一种或多种的混合物,(c)二氧化硅或高硅沸石,或(d)至少掺杂有 一种来自第三至第六小组的金属氧化物或与镧系元素包括镧的氧化物,(e)二氧化锆与至少一种第三至第五小组金属氧化物的混合物,至少一种 包括镧的镧系元素,或这些氧化物中的一种或多种的混合物。