Process for the preparation of a nickel/phosphorous ligand catalyst for olefin hydrocyanation
US6893996B2 · kind B2 · utility
23Cited by
12References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 26, 2001 |
| Grant date | May 17, 2005 |
| Priority date | — |
| Expiry date | Nov 9, 2022 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC01P2006/82
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A process for preparing a hydrocyanation catalyst comprising contacting a bidentate phosphorous-containing ligand with a molar excess of nickel chloride in the presence of a nitrile solvent and a reducing metal which is more electropositive than nickel. Preferably, the nickel chloride is dried before use.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.