Layered catalyst composition

Details Layered catalyst composition Layered catalyst composition

1995-05-05

1997-04-15

Myers, Helane

Chemistry of inorganic compounds

Modifying or removing component of normally gaseous mixture

Molecular oxygen or ozone component

423246, 423247, C01B 1300

Patent

active

056206720

ABSTRACT:
A catalyst composition contains a catalytic material having having an undercoat layer containing a mixture of a fine particulate undercoat refractory metal oxide and a sol such as a silica sol, the undercoat providing good adherence to substrates, such as metal substrates, on which the catalytic material is disposed. An overlayer is coated over the underlayer and contains an overlayer refractory metal oxide, which may be the same as or different from the undercoat refractory metal oxide, and on which is dispersed one or more catalytic metal components, such as palladium and manganese components. The metal substrate may be made of, e.g., aluminum or titanium or alloys thereof, and provides a low pressure drop and lightweight catalyst, making the catalyst especially well adapted for use in aircraft to abate ozone in cabin air. A method of making the catalyst composition includes applying the undercoat to the substrate and calcining it, impregnating the overlayer refractory metal oxide with one or more catalytic metal components and depositing the overlayer over the undercoat, and calcining it.

REFERENCES:
patent: 2742437 (1956-04-01), Houdry
patent: 3826736 (1974-07-01), Kittrell
patent: 4143118 (1979-03-01), Laing
patent: 4171287 (1979-10-01), Keith
patent: 4173549 (1979-11-01), Kent et al.
patent: 4184983 (1980-01-01), Putz et al.
patent: 4206083 (1980-06-01), Chang
patent: 4261863 (1981-04-01), Kent et al.
patent: 4343776 (1982-08-01), Carr et al.
patent: 4405507 (1983-09-01), Carr et al.
patent: 4492769 (1985-01-01), Blanchard et al.
patent: 4619821 (1986-10-01), Ely
patent: 4830844 (1989-05-01), Kolts
patent: 4849399 (1989-07-01), Joy, III et al.
patent: 4900712 (1990-02-01), Bar-Ilan et al.
patent: 4904633 (1990-02-01), Ohata et al.
patent: 4991181 (1991-02-01), Upchurch et al.
patent: 5080882 (1992-01-01), Yoshimoto et al.
patent: 5114901 (1992-05-01), Tsang et al.
patent: 5145657 (1992-09-01), Kobayashi et al.
patent: 5145822 (1992-09-01), Falke et al.
patent: 5187137 (1993-02-01), Terui et al.
patent: 5196390 (1993-03-01), Tauster et al.
patent: 5232882 (1993-08-01), Yoshimoto et al.
patent: 5250489 (1993-10-01), Dalla Betta et al.
patent: 5422331 (1995-06-01), Galligan et al.

Affiliated with

Also associated with

Rating

Layered catalyst composition does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Layered catalyst composition, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Layered catalyst composition will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-358694