PURIFICATION OF CARBOXYLIC ESTER CONTAINING ALDEHYDE, ACETAL AND/OR UNSATURATED COMPOUND

Process for the purification of carboxylic acid esters containing aldehydes, acetals and/or unsaturated compounds, which have been obtained by reaction of olefinically unsaturated compounds with carbon monoxide and alkanols, in which the carboxylic acid esters containing aldehydes, acetals and/or un...

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Bibliographische Detailangaben
Hauptverfasser:	PEETAA SHIYUTOTSUPUSU, GEERUHARUTO FURANKU, FUUBERUTO RENDORE, BUIRUFURIITO ZEIFUERUTO
Format:	Patent
Sprache:	eng
Schlagworte:	ACYCLIC OR CARBOCYCLIC COMPOUNDS APPARATUS THEREFOR CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY CHEMISTRY GENERAL METHODS OF ORGANIC CHEMISTRY METALLURGY ORGANIC CHEMISTRY PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL THEIR RELEVANT APPARATUS TRANSPORTING
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Beschreibung
Zusammenfassung:	Process for the purification of carboxylic acid esters containing aldehydes, acetals and/or unsaturated compounds, which have been obtained by reaction of olefinically unsaturated compounds with carbon monoxide and alkanols, in which the carboxylic acid esters containing aldehydes, acetals and/or unsaturated compounds are treated at elevated temperature with hydrogen and acidic agents in the presence of at least one metal of the 8th group of the periodic table and the low-boiling and/or high-boiling components formed are removed by distillation, characterised in that the carboxylic acid esters containing the aldehydes, acetals and/or unsaturated compounds a) are treated with strongly acidic agents in a first step at a temperature of 20 to 200 DEG C and b) the mixture thus treated is hydrogenated in a second step in the presence of at least one metal of the 8th sub-group of the periodic table at a temperature of 50 to 200 DEG C and under a pressure of 1 to 50 bar.