The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 04, 1976
Filed:
Jun. 07, 1974
Robert M Gipson, Austin, TX (US);
Jefferson Chemical Co., Inc., Houston, TX (US);
Abstract
In the hydroformylation, or oxo, reaction, where olefins are reacted with carbon monoxide and hydrogen in the presence of a Group VIII metal complex catalyst to form aldehydes and alcohols, the catalyst can be advantageously modified by complexing it with an organic compound of pentavalent phosphorus, arsenic or antimony, as a ligand. When these compounds are used as the catalyst modifier, or ligand, in the reaction, a stable catalyst results which allows the oxo alcohols and aldehydes to be readily recovered from the reaction product without a special treatment to remove the catalyst metal. Furthermore, the catalyst-containing residues can be recycled for subsequent use in the hydroformylation reaction without a substantial impairment of the yields from these reactions. The ligand is incorporated into the catalyst complex in the proportion of about 0.5 to about 10 gram mols ligand per gram atom of the metal.