Process for the preparation of nickel/phosphorous ligand catalyst for olefin hydrocyanation
US6897329B2 · kind B2 · utility
16Cited by
21References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 14, 2003 |
| Grant date | May 24, 2005 |
| Priority date | — |
| Expiry date | Apr 11, 2023 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01J2531/847
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A process for preparing a hydrocyanation catalyst comprising contacting a bidentate phosphorous-containing ligand with nickel chloride in the presence of a nitrile solvent and a reducing metal which is more electropositive than nickel the nickel chloride being introduced as an aqueous solution and the water being removed concurrently with the reduction reaction by azeotropic distillation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.