Method of improving the thermal shock behavior of monolithic catalysts
    2.
    发明授权
    Method of improving the thermal shock behavior of monolithic catalysts 失效
    改进单体催化剂的热冲击行为的方法

    公开(公告)号:US5139993A

    公开(公告)日:1992-08-18

    申请号:US658476

    申请日:1991-01-31

    摘要: The thermal shock resistance of monolithic catalysts is improved by pre-coating a ceramic monolithic carrier, before the application of catalytic components, with an organic filling material which can be melted and burned out and which comprises a dispersion of very fine solid particles, by heating the carrier above the melting point of the filling material, then applying the catalytic components and then burning out the filling material.

    摘要翻译: 整体催化剂的耐热冲击性通过在施加催化组分之前预先涂覆陶瓷整体载体与可熔化和燃烧的有机填充材料并通过加热而包含非常细的固体颗粒的分散体而得到改善 载体高于填充材料的熔点,然后施加催化组分,然后烧掉填充材料。

    Method for Coating a Wall Flow Filter With a Coating Composition
    7.
    发明申请
    Method for Coating a Wall Flow Filter With a Coating Composition 审中-公开
    涂覆涂料组合物的墙流滤器的方法

    公开(公告)号:US20080107806A1

    公开(公告)日:2008-05-08

    申请号:US11660841

    申请日:2005-08-13

    IPC分类号: B05D1/24

    摘要: Wall-flow filters can be reproducibly provided with a catalytically active coating by providing a defined quantity of a coating composition and sucking this coating composition through the openings of the entry passages into the filter body. The coating composition is sucked in by applying a subatmospheric pressure to the openings of the exit passages of the wall-flow filters. A different ratio of the coating quantities on the inner surfaces (pore surfaces) and outer surfaces (geometric surfaces of the passage walls) forms depending on the type of coating composition—suspension of fine-particle solids, colloidal solution or solution of soluble precursors of catalytically active components.

    摘要翻译: 通过提供一定量的涂料组合物并将该涂料组合物通过入口通道的开口吸入过滤器主体中,壁流式过滤器可再现地提供催化活性涂层。 通过向壁流式过滤器的出口通道的开口施加低于大气压的压力吸入涂料组合物。 内表面(孔表面)和外表面(通道壁的几何表面)之间的涂布量的不同比例根据涂料组合物的类型而形成 - 细颗粒固体,胶体溶液或可溶性前体溶液的悬浮液 催化活性组分。

    Method and device for coating a series of support bodies
    8.
    发明申请
    Method and device for coating a series of support bodies 有权
    涂覆一系列支撑体的方法和装置

    公开(公告)号:US20090130294A1

    公开(公告)日:2009-05-21

    申请号:US11665591

    申请日:2005-10-14

    IPC分类号: B05D1/00

    摘要: The accuracy of the coating concentration when applying a catalytically active coating to suitable carrier bodies can be increased if, following raw coating with a relatively wide fluctuation range in the coating concentration, excessive or insufficient coating applied is if appropriate corrected iteratively. Excessive coating suspension applied is removed, for example by subsequent suction, while the coating is still in the wet state, whereas insufficient coating suspension applied is topped up, for example by spraying on additional coating suspension.

    摘要翻译: 如果在涂层浓度相对较大的波动范围的原始涂层之后,如果适当地校正涂层,则施加过量或不足的涂层时,涂覆催化活性涂层对合适载体的涂层浓度的精度可以提高。 例如通过随后的抽吸去除施加的过度的涂覆悬浮液,同时涂层仍然处于湿润状态,而施加的涂层悬浮液不足,例如通过喷涂在另外的涂层悬浮液上。

    Process for the coating of the flow channels of a honeycomb form
catalytic converter carrier with a dispersion coating
    9.
    发明授权
    Process for the coating of the flow channels of a honeycomb form catalytic converter carrier with a dispersion coating 有权
    用分散涂层涂覆蜂窝状催化转化器载体的流动通道的方法

    公开(公告)号:US6149973A

    公开(公告)日:2000-11-21

    申请号:US146436

    申请日:1998-09-03

    CPC分类号: B05D7/22 B01J37/0215

    摘要: A process for the coating of the flow channels of a cylindrical, honeycomb form catalyst carrier with a dispersion coating through filling of the vertically oriented flow channels with a fill quantity of the coating dispersion through the bottom face of the catalyst carrier and subsequent downward emptying and clearance extraction of the flow channels, as well as drying and calcination of the catalyst carrier, by the following steps:a) filling of the flow channels with a fill quantity that is about 10% greater than the empty volume of the flow channels, so that the coating dispersion goes over the upper face of the catalyst carrier after completion of the filling cycle,b) removal of the excess coating dispersion at the top before emptying of the flow channels andc) emptying and clearance extraction of the flow channels through an extraction impulse, which is generated by connection of a vacuum tank with the bottom face of the catalyst carrier,whereby the time between the beginning of the fill cycle and the end of the emptying and clearance extraction amounts to no more than 5 seconds.

    摘要翻译: 一种用于通过填充垂直取向的流动通道的带有分散涂层的圆柱形蜂窝形式催化剂载体的流动通道的涂覆方法,其中填充量通过催化剂载体的底面并随后向下排空, 流动通道的间隙提取,以及催化剂载体的干燥和煅烧,通过以下步骤:a)以比流动通道的空体积大约10%的填充量填充流动通道,因此 在完成填充循环之后涂层分散体越过催化剂载体的上表面,b)在排空流动通道之前去除顶部的过量涂层分散体,以及c)通过一个或多个流动通道排空和清除流动通道 提取脉冲,其通过将真空罐与催化剂载体的底面连接而产生,由此开始之间的时间 的填充循环和排空和清除提取的结束不超过5秒。