Metal zeolite catalyst preparation
US4552855A · kind A · utility
41Cited by
6References
24Claims
0Family size
Inventors
Key dates
| Filing date | Nov 30, 1983 |
| Grant date | Nov 12, 1985 |
| Priority date | — |
| Expiry date | Nov 30, 2003 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01J29/061
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Zeolite-metal catalysts having a substantial amount of catalytically active metal, e.g. iron, deposited in the cavities of the zeolite in zero-valent, small cluster form, are prepared by vaporizing the metal under low vapor pressure conditions in the vicinity of an organic liquid solvent, e.g. toluene, such that the metal dissolves in the solvent as a labile solvated zero-valent metal complex. This complex is contacted with the zeolite so that the complex diffuses into the cavities of the zeolite. Upon subsequent warming the solvated metal complex decomposes, leaving zero-valent small metal clusters in the zeolite cavities.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.