METHOD FOR PRODUCING EXHAUST GAS PURIFICATION CATALYST

The present disclosure provides a production method for producing an exhaust gas purification catalyst with a reduced standby time of a shower nozzle. The method includes: a slurry supply step of supplying a catalyst metal-containing slurry from a shower nozzle to one end of a honeycomb base materia...

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Bibliographische Detailangaben
Hauptverfasser:	OHARA, Etsuko, MATSUI, Suguru, YAMAMOTO, Keita
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL SEPARATION THEIR RELEVANT APPARATUS TRANSPORTING
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Beschreibung
Zusammenfassung:	The present disclosure provides a production method for producing an exhaust gas purification catalyst with a reduced standby time of a shower nozzle. The method includes: a slurry supply step of supplying a catalyst metal-containing slurry from a shower nozzle to one end of a honeycomb base material; a first suction step of pressurizing or depressurizing the base material on which the slurry has been supplied, in a direction of the other end of the base material by using a first suction device to draw the slurry supplied, into the base material; and a second suction step of further pressurizing or depressurizing the base material after the first suction step, in the direction of the other end of the base material by using a second suction device. The slurry supply step and the first and second suction steps are performed in parallel in the same production line.