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    • 8. 发明授权
    • Method for catalytically coating ceramic honeycomb bodies
    • 催化涂覆陶瓷蜂窝体的方法
    • US08278236B2
    • 2012-10-02
    • US12158843
    • 2006-11-22
    • Marcus PfeiferPaul SpurkMarkus KoegelEgbert S. J. LoxThomas Kreuzer
    • Marcus PfeiferPaul SpurkMarkus KoegelEgbert S. J. LoxThomas Kreuzer
    • B01J21/00B01J29/00
    • B01J37/0215B01J35/04B01J35/10B01J35/1076C23C18/02C23C18/08Y10T428/24157
    • The invention relates to a process for coating ceramic honeycomb bodies with a coating suspension containing, in a carrier liquid, catalyst components as solids and/or in dissolved form. The honeycomb bodies have parallel flow channels running through them. The walls of the flow channels generally have an open pore structure. To coat the channel walls and in particular also the interior surfaces of the pores with the coating suspension, it is proposed that the flow channels be temporarily alternately closed and the coating suspension be forced through the open pore structure of the channel walls. The coating is subsequently dried and calcined. To close the flow channels, it is possible to use thermally or chemically decomposable or soluble compositions which are decomposed or dissolved either during calcination or by means of a subsequent chemical treatment. The coated honeycomb bodies are preferably used for the purification of exhaust gases from automobiles.
    • 本发明涉及涂覆陶瓷蜂窝体的方法,该涂层悬浮液在载体液体中含有作为固体和/或溶解形式的催化剂组分。 蜂窝体具有平行的流动通道。 流动通道的壁通常具有开孔结构。 为了涂覆通道壁,特别是涂覆悬浮液的孔的内表面,建议将流动通道临时交替地封闭,并且将涂覆悬浮液强制通过通道壁的开孔结构。 随后将涂层干燥并煅烧。 为了封闭流动通道,可以使用在煅烧期间或通过随后的化学处理分解或溶解的热或可分解或可溶性组合物。 涂布的蜂窝体优选用于净化汽车废气。