Regeneration of catalysts used in the manufacture of bisphenols

A method for regenerating deactivated sulfonated cation exchange catalysts comprises washing the deactivated catalyst with phenol-water mixtures comprising about 5-20 wt. % of water in phenol at a temperature of about 70-95° C.

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Bibliographische Detailangaben
Hauptverfasser:	PEEMANS RUDY FRANCOIS ALAIN JOSEPH, KRUGLOV ALEXEY, NANCE DARLENE HOPE, KISSINGER GAYLORD MICHAEL, SHAFER SHELDON JAY, SCHLARMANN EDUARD HENDRICUS, MBELEDOGU CHUKS O, BARO KARL AARON, GEORGIEV EMIL MARKOV
Format:	Patent
Sprache:	eng
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 THEIR RELEVANT APPARATUS TRANSPORTING
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Beschreibung
Zusammenfassung:	A method for regenerating deactivated sulfonated cation exchange catalysts comprises washing the deactivated catalyst with phenol-water mixtures comprising about 5-20 wt. % of water in phenol at a temperature of about 70-95° C.