초록 ▼

An improved catalytic converter which comprises a metal monolith made of aluminum or aluminum alloy having an anodized surface layer on which is disposed catalytic metals, particularly noble metals from Group VIII and optionally base metals. In a preferred embodiment the metal monolith employs plate

An improved catalytic converter which comprises a metal monolith made of aluminum or aluminum alloy having an anodized surface layer on which is disposed catalytic metals, particularly noble metals from Group VIII and optionally base metals. In a preferred embodiment the metal monolith employs plate fin elements defining a large plurality of fins arranged in an axial succession of offset fin rows. The catalytic converter has application in the conversion of ozone and the oxidation of atmospheric pollutants.

대표청구항 ▼

[What is claimed is:] [1.](a) a unitary aluminum or aluminum alloy support within a housing providing tortuous flow paths for gases passing over said support and having an integral anodized surface layer at least 2 .mu.m thick, said support comprising one or more plate fin elements having a pluralit

[What is claimed is:] [1.](a) a unitary aluminum or aluminum alloy support within a housing providing tortuous flow paths for gases passing over said support and having an integral anodized surface layer at least 2 .mu.m thick, said support comprising one or more plate fin elements having a plurality of fins arranged in an axial succession of offset fin rows, said anodized surface layer being formed by anodizing at a temperature of about 30.degree.-37.degree. C., followed by washing and optionally calcining said anodized surface layer at a temperature of 150.degree. to 540.degree. C.; and(b) one or more Group VIII noble metals and optionally base metals from Groups VIII, IIIa, and VIIa disposed on and within said anodized surface layer of (a).