JPS5515643A - Catalyst for purification of exhaust gas - Google Patents

Catalyst for purification of exhaust gas

Info

Publication number
JPS5515643A
JPS5515643A JP8839178A JP8839178A JPS5515643A JP S5515643 A JPS5515643 A JP S5515643A JP 8839178 A JP8839178 A JP 8839178A JP 8839178 A JP8839178 A JP 8839178A JP S5515643 A JPS5515643 A JP S5515643A
Authority
JP
Japan
Prior art keywords
catalyst
oxides
purification
components
exhaust gas
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP8839178A
Other languages
Japanese (ja)
Other versions
JPS5845895B2 (en
Inventor
Yoshio Umemura
Hisayuki Mizuno
Yukio Fukuhara
Akinori Kashiwatani
Takeshi Yamao
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Ube Corp
Original Assignee
Ube Industries Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Ube Industries Ltd filed Critical Ube Industries Ltd
Priority to JP53088391A priority Critical patent/JPS5845895B2/en
Publication of JPS5515643A publication Critical patent/JPS5515643A/en
Publication of JPS5845895B2 publication Critical patent/JPS5845895B2/en
Expired legal-status Critical Current

Links

Landscapes

  • Catalysts (AREA)
  • Exhaust Gas Treatment By Means Of Catalyst (AREA)

Abstract

PURPOSE: To obtain the catalyst of wide window widths and superior durability which comprises carrying oxides of Pt, Rh and Cr and alkaline metal chlorides on carriers and which purifies 3 components of NOx, CO and hydrocarbons in exhaust gases in either of reducing atmosphere and oxidative atmosphere with high efficiency.
CONSTITUTION: Oxides of Pt, Rh and Cr and alkaline metal chlorides of sodium chloride, potassium chloride, etc. are carried on carrier such as of alumina to provide the catalyst for purification of exhaust gases. The amounts of carrying of the respective components are about 0.1 to 30%, preferably 0.5 to 15% and particularly preferably 0.7 to 10%. Pt and Rh components are about 0.01 to 5% in equivalent total weight of both metals, preferably 0.03 to 1%, and the Pt:Rh (weight ratio) is about 1:0.01 to 20, preferably 1:0.05 to 10. The Cr oxides are about 0.01 to 3% in Cr equivalent, preferably 0.04 to 1%.
COPYRIGHT: (C)1980,JPO&Japio
JP53088391A 1978-07-21 1978-07-21 Exhaust gas purification catalyst Expired JPS5845895B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP53088391A JPS5845895B2 (en) 1978-07-21 1978-07-21 Exhaust gas purification catalyst

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP53088391A JPS5845895B2 (en) 1978-07-21 1978-07-21 Exhaust gas purification catalyst

Publications (2)

Publication Number Publication Date
JPS5515643A true JPS5515643A (en) 1980-02-02
JPS5845895B2 JPS5845895B2 (en) 1983-10-13

Family

ID=13941489

Family Applications (1)

Application Number Title Priority Date Filing Date
JP53088391A Expired JPS5845895B2 (en) 1978-07-21 1978-07-21 Exhaust gas purification catalyst

Country Status (1)

Country Link
JP (1) JPS5845895B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4501021A (en) * 1982-05-03 1985-02-19 General Signal Corporation Fiber optic data highway
JPS62145786A (en) * 1985-12-20 1987-06-29 Hitachi Electronics Eng Co Ltd Laser oscillator protecting device for measuring trolley wire wear

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4501021A (en) * 1982-05-03 1985-02-19 General Signal Corporation Fiber optic data highway
JPS62145786A (en) * 1985-12-20 1987-06-29 Hitachi Electronics Eng Co Ltd Laser oscillator protecting device for measuring trolley wire wear

Also Published As

Publication number Publication date
JPS5845895B2 (en) 1983-10-13

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