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JPH10362A Expired / Lapsed JP ⏱️ 0.0 years remaining

Method for producing exhaust gas purifying catalyst

Assignee: Nissan Motor Co Ltd
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Filing: 1996-06-14
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Granted: —
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Expires: 2016-06-14
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Abstract

Abstract Translated from Japanese (57)【要約】 【課題】 ゼオライトのミクロ細孔の内部にまで銅を高 濃度かつ高分散担持することにより、高性能で耐久性に 優れた排気ガス浄化用触媒を効率よく得る製造方法を提 供する。 【解決手段】 多孔質結晶性アルミノケイ酸塩を主成分 として含有する無機物に、銅成分を含有させて成る排気 ガス浄化用触媒を製造するにあたり、銅アンミン錯体の カルボニル塩〔(Cu(NH 3 ) 6 〕CO 3 )水溶液と該 多孔質結晶性アルミノケイ酸塩とを接触させてCu成分 を担持する。また、銅アンミン錯体のカルボニル塩水溶 液のpH、及び銅アンミン錯体のカルボニル塩と多孔質 結晶性アルミノケイ酸塩とを接触させた混合溶液のpH とを、8.3〜11.0の範囲に調整することが好まし い。 PROBLEM TO BE SOLVED: To provide a production method for efficiently obtaining a high-performance and highly durable exhaust gas purifying catalyst by carrying copper at a high concentration and a high dispersion inside zeolite micropores. provide. SOLUTION: In producing an exhaust gas purifying catalyst comprising a copper component in an inorganic substance containing a porous crystalline aluminosilicate as a main component, a carbonyl salt of a copper ammine complex [(Cu (NH 3 ) 2] 6 ] The Cu component is carried by bringing the aqueous solution of CO 3 ) into contact with the porous crystalline aluminosilicate. Further, the pH of the aqueous solution of the carbonyl salt of the copper ammine complex, and the pH of the mixed solution obtained by contacting the carbonyl salt of the copper ammine complex with the porous crystalline aluminosilicate Is preferably adjusted in the range of 8.3 to 11.0.

Inventors

  • 👤 Akira Murakami
  • 👤 彰 村上
  • 👤 Minoru Takachi
  • 👤 穂 高地
  • 👤 Masanori Kamikubo
  • 👤 真紀 上久保
  • 👤 Hiroshi Akama
  • 👤 弘 赤間
  • 👤 Hiroyuki Kanesaka
  • 👤 浩行 金坂

Bibliographic Details

Application Number —
Jurisdiction JP
Data Source google_patents
Last Synchronized 2026-10-27 22:17
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