PROCESS FOR PRODUCING CATALYST FOR EXHAUST GAS PURIFICATION AND CATALYST FOR EXHAUST GAS PURIFICATION
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United States of America Patent
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Issued Date -
May 17, 2012
app pub date -
Aug 22, 2008
filing date -
Aug 27, 2007
priority date (Note) -
Abandoned
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Abstract
An object of the present invention is to provide a process for producing a catalyst for exhaust gas purification capable of increasing the area brought into contact with exhaust gas to improve the exhaust gas purification efficiency without decrease in strength of the catalyst for exhaust gas purification and without significant increase in manufacturing cost of the catalyst for exhaust gas purification. The present invention provides a process for producing a catalyst for exhaust gas purification formed by forming a coating layer containing a catalyst component on a honeycomb support, characterized in that the method comprises immersing the honeycomb support in a thixotropic slurry containing the catalyst component or sucking the slurry into the honeycomb support, removing the honeycomb support from the slurry, spraying pulsed air onto an end surface of the removed honeycomb support in the axial direction thereof, and baking the honeycomb support to form the coating layer on the honeycomb support.
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