Title:
ディーゼル自動車用の酸化触媒装置の洗浄方法
Document Type and Number:
Japanese Patent JP7471863
Kind Code:
B2
Abstract:
To provide a cleaning method that can recover DOC purification performance.SOLUTION: The present disclosure provides a method for cleaning an oxidation catalyst device for diesel automobiles. The oxidation catalyst device for diesel automobiles has a phosphorus component deposited thereon, as deposits. The oxidation catalyst device is immersed in a cleaning liquid containing citric acid, so that the phosphorus component is removed from it.SELECTED DRAWING: Figure 1
Inventors:
Hidenori Suzuki
Kenichi Iyoda
Kenichi Iyoda
Application Number:
JP2020033377A
Publication Date:
April 22, 2024
Filing Date:
February 28, 2020
Export Citation:
Assignee:
Tokyo Filter Co., Ltd.
International Classes:
B01J38/62; B01D53/96; B01J35/57
Domestic Patent References:
| JP2019150785A | ||||
| JP2016020660A | ||||
| JP2011255270A | ||||
| JP2006097652A | ||||
| JP2018535346A | ||||
| JP2006110451A | ||||
| JP2019048278A | ||||
| JP2012206010A |
Foreign References:
| WO2018016606A1 | ||||
| WO2017150582A1 |
Attorney, Agent or Firm:
Patent Attorney Corporation Isshiki International Patent Office
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