Preparation of zerovalent nickel complexes
US4416825A · kind A · utility
43Cited by
9References
6Claims
0Family size
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Key dates
| Filing date | Feb 23, 1982 |
| Grant date | Nov 22, 1983 |
| Priority date | — |
| Expiry date | Feb 23, 2002 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C253/10
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
An improved, continuous process for the preparation of hydrocyanation catalysts comprising zerovalent nickel complexes with organophosphorus compounds (ligands) by controlling the temperature of the reaction relative to the amount of ligand and conducting the reaction in the presence of a chlorine ion and organic nitrile such as adiponitrile.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.