Catalyst – solid sorbent – or support therefor: product or process – Catalyst or precursor therefor – Metal – metal oxide or metal hydroxide
Patent
1995-06-30
1998-11-03
Caldarola, Glenn
Catalyst, solid sorbent, or support therefor: product or process
Catalyst or precursor therefor
Metal, metal oxide or metal hydroxide
502324, 502328, 502329, 502341, 502342, 502343, B01J 2104, B01J10132, B01J 2334, B01J 2300
Patent
active
058308229
ABSTRACT:
A non-selective high temperature resistant oxidation catalyst and a process for the preparation of this catalyst is described. The catalyst mainly has the formula A.sub.1-x B.sub.y C.sub.z Al.sub.12-y-z O.sub.19-.delta., where A represents at least one element selected from the group formed by barium, strontium and the rare earths; B represents at least one element with valency Y selected from the group formed by Mn, Co and Fe; C represents at least one element selected from the group formed by Mg and Zn; x has a value of 0 to 0.25, y has a value of 0.5 to 3 and z has a value of 0.01 to 3; the sum y+z has a maximum value of 4 and .delta. has a value which is determined as a function of the respective valencies X and Y of elements A and B and the value of x, y and z and is equal to 1-1/2{(1-x)X+yY-3y-z}. The catalysts of the invention are particularly for use in processes for the catalytic combustion of hydrocarbons, carbon monoxide, hydrogen or mixtures thereof.
REFERENCES:
patent: 4857499 (1989-08-01), Ito et al.
Caldarola Glenn
Ghyka Alexander G.
Institut Francais du Pe'trole
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