Modified PT/RU catalyst for ring opening and process using the catalyst
US7345214B2 · kind B2 · utility
4Cited by
14References
21Claims
0Family size
Assignee
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Key dates
| Filing date | Oct 3, 2005 |
| Grant date | Mar 18, 2008 |
| Priority date | — |
| Expiry date | Oct 19, 2025 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C2523/63
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A catalyst for opening naphthenic rings has been developed. The catalyst comprises ruthenium and platinum as the active catalytic metals and a modifier with cerium being a preferred modifier. At least 50% of the platinum and ruthenium components are present as particles wherein more ruthenium is present on the surface of the particles than in the center. All of these components are dispersed on a metal oxide support such as aluminas. A ring opening process using the catalyst is also described.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.