Process for the preparation of a nickel/phosphorous ligand catalyst for olefin hydrocyanation
AssigneeInvista North America S.A.R.L.
InventorsLuis A. Chu, Lucy M. Clarkson, Norman Herron, Ronald J. McKinney, Kenneth G. Moloy, Zeru Tekie
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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.
Claims18
A process for preparing a hydrocyanation catalyst comprising contacting at least one bidentate phosphorus-containing ligand selected from the group consisting of bidentate phosphites, bidentate phosphinites, and bidentate phosphines with nickel chloride in the presence of a nitrile solvent and a reducing metal which is more electropositive than nickel, the nickel chloride being in molar excess with respect to the reducing metal in a molar ratio of 1.1:1 to 100:1.
Dependencies are inferred from the claim text.