High temperature resistant oxidation catalyst, a process for its preparation and a combustion process using this catalyst
US5830822A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jun 30, 1995 |
| Grant date | Nov 3, 1998 |
| Priority date | — |
| Expiry date | Jun 30, 2015 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01J2523/00
- WIPO fieldChemical engineering
- WIPO sectorChemistry
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.