Stabilized organophosphorous compounds
AssigneeDow Technology Investments LLC
InventorsGeorge R. Phillips, Glenn A. Miller, Marinus A. Bigi, Michael A. Brammer
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Abstract
A hydroformylation process wherein the hydrolyzable organophosphorous ligand component of the catalyst is supplied as a stabilized ligand composition comprising a hydrolyzable organophosphorous ligand and, per 100 moles compound, from 0.05 to 13 acid-neutralizing equivalents of an acid scavenger.
Claims13
A process comprising:
- (a) contacting CO, H2, and at least one olefin in a reaction zone of a hydroformylation system under hydroformylation conditions sufficient to form at least one aldehyde product in the presence of a catalyst comprising, as components, a transition metal and a hydrolyzable organophosphorous ligand, (b) providing the ligand as a ligand composition comprising the ligand and from 0.05 to 13 acid-neutralizing equivalents of an acid scavenger per 100 moles ligand, and (c) prior to providing the ligand composition, storing the ligand composition under a substantially oxidizer-free atmosphere, under vacuum, or both.
A process for improving the storage stability of a ligand to be used as a catalyst component, the process comprising admixing a hydrolyzable organophosphorous ligand with from 0.05 to 13 equivalents of an acid scavenger per 100 moles of ligand to obtain a mixture of the ligand and the acid scavenger.
Dependencies are inferred from the claim text.