发明名称 |
Process for producing a filter catalyst |
摘要 |
To provide a process for producing a filter catalyst which can produce a filter catalyst in which the closure of ventilation holes by a catalytic layer is inhibited. A process for producing a filter catalyst according to the present invention is characterized in that , in a process for producing a filter catalyst, the process comprising: a step of preparing a coating slurry in which an inorganic oxide powder is dispersed, and coating the coating slurry onto a catalyst-support substrate composed of a porous material having a plurality of cells extending in the axial direction; a step of removing the coating slurry in excess from the catalyst-support substrate with the coating slurry coated; and a step of drying-calcining the coating slurry; the removing of the coating slurry in excess is carried out by performing the following steps repeatedly: a step of holding one of the axial opposite ends of the catalyst-support substrate and another axial opposite end thereof in such a state that a pressure difference is given therebetween; and a step of holding the one of the opposite ends of the catalyst-support substrate and the other opposite end thereof in an identical pressure state. The present production process can produce a filter catalyst in which sufficient ventilation property is secured so that it has come not to induce the rise of pressure loss. |
申请公布号 |
ZA200601451(B) |
申请公布日期 |
2007.04.25 |
申请号 |
ZA20060001451 |
申请日期 |
2006.02.20 |
申请人 |
CATALER CORPORATION |
发明人 |
TSUJI, MAKOTO;OKI, DAISUKE;SENDA, KOJI |
分类号 |
F01N3/02;B01D;B01D39/14;B01J;B01J23/58;B01J35/00;B01J35/04;B01J37/00;B01J37/02;F01N3/10;F01N3/28 |
主分类号 |
F01N3/02 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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