Process for the preparation of a nickel/phosphorous ligand...

Catalyst – solid sorbent – or support therefor: product or process – Catalyst or precursor therefor – Organic compound containing

Reexamination Certificate

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C502S167000, C502S169000, C502S213000

Reexamination Certificate

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06893996

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.

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Communication Relating to the Results of the Partial International Search Report for PCT/US 02/36468.

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