Hydrogenation catalysts
US6846772B2 · kind B2 · utility
27Cited by
9References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 21, 2003 |
| Grant date | Jan 25, 2005 |
| Priority date | — |
| Expiry date | Jan 21, 2023 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01J37/031
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Production of nickel/silica hydrogenation catalyst precursors by heating a slurry of particulate silica, e.g. kieselguhr, in an aqueous nickel ammine carbonate solution for a total period of at least 200 minutes at a pH above 7.5, followed by filtration, washing, drying, and optionally calcination.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.