DE2314947

Hydroxydiphenyl is prepared by dehydrogenating a starting material comprising a completely and/or partly hydrogenated hydroxydiphenyl in the gaseous phase in the presence of a dehydrogenation catalyst. The starting material is free from autoxidation products less volatile than the completely or part...

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Bibliographische Detailangaben
Hauptverfasser:	SCHWARZ, HANS- HELMUT, WEISSEL, OSKAR
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:	Hydroxydiphenyl is prepared by dehydrogenating a starting material comprising a completely and/or partly hydrogenated hydroxydiphenyl in the gaseous phase in the presence of a dehydrogenation catalyst. The starting material is free from autoxidation products less volatile than the completely or partially hydrogenated hydroxydiphenyl, or of a peroxidic nature, and only contain products of an acid nature to such an extent than the acid number of the starting material is less than 0.2.