Process for the manufacture of phenol-isobutyraldehyde condensation products
AssigneeBASF SE
InventorsJuergen Nieberle, Karl-Clemens Peters, Wolfgang Reuther, Heinz-Hilmar Bankowsky
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Abstract
A process for the manufacture of condensation products of phenols and isobutyraldehyde by reacting the phenols and isobutyraldehyde at elevated temperature in a mole ratio of 0.5:1 to 1.5:1 in the presence of acid or compounds hydrolyzable to acids as catalysts, subsequent neutralization and removal of the resultant reaction water by distillation wherein the reaction products obtained in this manner are also subjected to a water-vapor distillation.
Claims7
Process for the manufacture of condensation products of phenols and isobutyraldehyde wherein problems presented by odor are eliminated or substantially reduced, by reacting the phenol and isobutyraldehyde at an elevated temperature in a mole ratio of 0.5:1 to 1.5:1 in the presence of acid or compounds hydrolyzable to acids as catalysts, subsequent neutralization and removal of the resultant reaction water by a first distillation followed by subjection of the reaction products obtained in this manner to a second distillation, which second distillation is a steam distillation and the only steam distillation.
Dependencies are inferred from the claim text.