Catalyst – solid sorbent – or support therefor: product or process – Catalyst or precursor therefor – Metal – metal oxide or metal hydroxide
Patent
1991-08-26
1993-05-11
Dees, Carl F.
Catalyst, solid sorbent, or support therefor: product or process
Catalyst or precursor therefor
Metal, metal oxide or metal hydroxide
502341, B01J 3702, B01J 3510
Patent
active
052100626
ABSTRACT:
This invention is directed to a method of providing a channeled substrate with a porous washcoat used as a supporting structure for a catalyst. The substrate is coated with a reactive mixture made of components comprising aluminum alkoxide, water, and acid or the alkoxide in an alcohol. The aluminum alkoxide contains hydrolyzable alkoxy groups and has the chemical formula: Al(OR).sub.3, where R is an alkyl or branched alkyl group of 3 to 6 carbon atoms. The method also includes drying and calcining the coating to form a .gamma.-alumina washcoat.
REFERENCES:
patent: 3019080 (1962-01-01), Vincent
patent: 3873469 (1975-03-01), Foster et al.
patent: 3944658 (1976-03-01), Yoldas
patent: 4241035 (1980-12-01), Farmer
patent: 4438219 (1984-03-01), Brandenburg et al.
patent: 4631268 (1986-12-01), Lachman et al.
patent: 4714694 (1987-12-01), Wan et al.
patent: 4717708 (1988-01-01), Cheng et al.
patent: 4732879 (1988-03-01), Kalinowski et al.
patent: 4771029 (1988-09-01), Pereira et al.
Yoldas, "Alumina Gels That Form Porous Transparent Al.sub.2 O.sub.3 ", Journal of Materials Science 10 (1975) 1856-1860.
Leenaars et al, "Porous Alumina Membranes", Chemtech (Sep. 1986) 560-564.
Leenaars et al, "The Preparation and Characterization of Alumina Membranes with Ultra-Fine Pores, Part 1 Microstructural Investigations on Non-supported Membranes", Journal of Materials Science 19 (1984) 1077-1088.
Leenaars et al, "The Preparation and Characterization of Alumina Membranes with Ultra-Fine Pores, 2. The Formation of Supported Membranes", Journal of Colloid and Interface Science, vol. 105, No. 1, May 1985.
Leenaars et al, "The Preparation and Characterization of Alumina Membranes with Ultra-Fine Pores, Part 3. The Permeability For Pure Liquids", Journal of Membrane Science, 24 (1985) 245-260.
Leenaars et al, "The Preparation and Characterization of Alumina Membranes with Ultra-Fine Pores, Part 4. Ultrafiltration And Hyperfiltration Experiments", Journal of Membrane Science, 24 (1985) 261-270.
Narula Chaitanya K.
Shelef Mordecai
Watkins William L. H.
Dees Carl F.
Ford Motor Company
Malleck Joseph W.
May Roger L.
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