PRODUCTION OF DIALDEHYDES

PURPOSE:To obtain the above compound useful as a synthetic raw material for amino acid, etc., economically on an industrial scale while preventing the agglomeration of catalyst, by carrying out the oxidative dehydrogenation of glycols in the presence of a silver catalyst having particle surface part...

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Bibliographic Details
Main Authors NAKAGAWA SUMIO, UNO YOSHINOBU, TOIYAMA MASAOKI, KODA HIROMICHI
Format Patent
LanguageEnglish
Published 28.08.1989
Subjects
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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Summary:PURPOSE:To obtain the above compound useful as a synthetic raw material for amino acid, etc., economically on an industrial scale while preventing the agglomeration of catalyst, by carrying out the oxidative dehydrogenation of glycols in the presence of a silver catalyst having particle surface partly covered with silicon carbide powder, etc. CONSTITUTION:Dialdehydes are produced by the oxidative dehydrogenation of glycols of formula (n>=2) (e.g., ethylene glycol or propylene glycol) in the presence of a silver catalyst having particle surface partly covered with silicon carbide powder or silicon nitride powder. The catalyst is granules produced, e.g., by electrolytic process, atomizer process, etc. A part of the surface of the silver particle is covered with silicon carbide powder or silicon nitride powder. It is effective to use the powder having particle diameter of 0.01-100mum, especially about 0.1-10mum.
Bibliography:Application Number: JP19880037782