VERFAHREN ZUR HERSTELLUNG VON ALDEHYDEN

Aldehydes are prepared by gas-phase hydrogenation of aromatic carboxylic acids which carry at the most one hydrogen atom in the alpha -position relative to the carboxyl group or of esters or anhydrides of these acids at temperatures of 300 to 450 DEG C and pressures of 0.1 to 10 bar by means of an i...

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Bibliographische Detailangaben
Hauptverfasser: IRGANG, MATTHIAS, FISCHER, MARTIN, WAMBACH, LUDWIG
Format: Patent
Sprache:ger
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Zusammenfassung:Aldehydes are prepared by gas-phase hydrogenation of aromatic carboxylic acids which carry at the most one hydrogen atom in the alpha -position relative to the carboxyl group or of esters or anhydrides of these acids at temperatures of 300 to 450 DEG C and pressures of 0.1 to 10 bar by means of an iron catalyst which has been prepared from iron carbonyl.