MANUFACTURE OF ALDEHYDE

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:	MATSUCHIASU IRUGANGU, RUUDOUITSUHI BUAMUBATSUHA, MARUCHIN FUITSUSHIYAA
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:	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.