fremgangsmåde til fraskillelse af katalysatorer fra suspensioner ved filtrering

Process for separating off noble metal catalysts which are used in the production of ether carboxylic acids by catalytic oxidation with a suspended catalyst, characterised in that cross-flow filtration is carried out and the filter elements used are pretreated with a medium, composed of one or more...

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Bibliographische Detailangaben
Hauptverfasser:	LEUPOLD, ERNST INGO, DETTMEIER, UDO, KAUFFELT, MANFRED, WEICHSELBAUMER, GEORG, HERZOG, WILLI, ZEISBERGER, EDUARD
Format:	Patent
Sprache:	dan
Schlagworte:	ACYCLIC OR CARBOCYCLIC COMPOUNDS CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY CHEMISTRY METALLURGY ORGANIC CHEMISTRY PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL SEPARATION THEIR RELEVANT APPARATUS TRANSPORTING
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Beschreibung
Zusammenfassung:	Process for separating off noble metal catalysts which are used in the production of ether carboxylic acids by catalytic oxidation with a suspended catalyst, characterised in that cross-flow filtration is carried out and the filter elements used are pretreated with a medium, composed of one or more carboxylic acids, which is not solid under the treatment conditions.