| 摘要 |
Process for preparing a nickel/ligand catalyst in which a crude ligand mixture is contacted with at least one member selected from the group consisting of (i) a weakly acidic organic resin, (ii) a weakly basic organic resin, (iii) a high-surface-area organic resin, (iv) activated carbon, (v) aluminosilicate zeolite, (vi) a two phase solvent system for liquid-liquid extraction and (vii) a Lewis acid; recovering a solution containing a ligand of the formula (R<1>O)2POZOP(OR<1>)2; and contacting the solution with nickel chloride in the presence of a nitrile solvent and a reducing metal which is more electropositive than nickel to produce the nickel/ligand catalyst.
|
