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US 4,225,458 AGranted
Process for the continuous manufacture and separation of oxo catalysts
AssigneeExxon Research & Engineering Co.
InventorsI-Der Huang, Catherine McCooey
Life of this patent
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Abstract
Contacting the saponified heavy oxygenated bottoms product obtained from an oxo distillation unit with demet water containing a cobaltous compound in a continuous flow, preferably countercurrent extractor results in the efficient production of an oil-soluble cobalt catalyst on a continuous basis.
Claims9
A process for the manufacture and separation of oxo cobalt containing catalysts which comprises the steps of:
- (a) demetalling the crude oxo product by contacting it in the presence of oxygen or air with an excess of an aqueous organic acid to convert cobalt to cobatons compound;
- (b) separating the demet water containing the resulting cobaltous compound from the demetalled oxo product;
- (c) saponifying the heavy oxygenated fraction (HOF) bottoms which contains alcohols, ethers, acids, esters and acetals from the distillation of demetalled, hydrogenated oxo product with an alkaline material to form a soap;
- and
- (d) contacting the demet water separated in step (b) with said saponified HOF bottoms obtained in step (c) in a continuous flow extractor to produce a cobalt soap, the pH of the aqueous effluent from the extractor being in the range of about 8 to about 12.
2 more elements
Dependencies are inferred from the claim text.