Method of preparing highly active nickel catalysts and catalysts prepared by said method
US4160745A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 1, 1977 |
| Grant date | Jul 10, 1979 |
| Priority date | — |
| Expiry date | Dec 1, 1997 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C2601/14
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
The instant invention relates to a method for preparing high activity supported nickel catalysts. The method comprises the deposition of nickel nitrate on a carrier, typically an inert inorganic refractory oxide, by techniques known in the art followed by careful heating to a temperature of between 100.degree. to 270.degree. C., avoiding any excursions into temperatures beyond the stated maxima, in a flowing nonreactive gas atmosphere for a time sufficient to convert substantially all of the nickel nitrate into nickel oxide. When using an H.sub.2 containing atmosphere the maximum temperature is 220.degree. C. The supported nickel oxide resulting from the above procedure is then reduced to a supported nickel metal catalyst in a reducing atmosphere at a temperature ranging from about 230.degree. C. to 400.degree. C. The instant invention also relates to a new class of supported nickel metal catalysts having a specific activity of at least twice the specific activities of prior art catalysts as determined for the hydrogenation of benzene. These catalysts comprise from 0.1 to 50 wt. % nickel on a support, preferably 0.5 to 20 wt. % nickel, most preferably about 17 wt. % nickel on a sup…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.