Verfahren zur Gewinnung von Phenol aus einem Na2So4 enthaltenden wässrigen Strom

The invention relates to a process for the recovery of phenol dissolved in an aqueous stream of a plant for the production of phenol from cumene, containing Na2SO4 and various organic impurities which consists in the extraction of the phenol with a solvent and its subsequent recovery from the extrac...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	ALESSI, VANNI, PENZO, RENZO, CELIN, FRANCESCO, GRADELLA, CECILIA, ASTORI, SABRINA
Format:	Patent
Sprache:	ger
Schlagworte:	ACYCLIC OR CARBOCYCLIC COMPOUNDS CHEMISTRY METALLURGY ORGANIC CHEMISTRY
Online-Zugang:	Volltext bestellen
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Beschreibung
Zusammenfassung:	The invention relates to a process for the recovery of phenol dissolved in an aqueous stream of a plant for the production of phenol from cumene, containing Na2SO4 and various organic impurities which consists in the extraction of the phenol with a solvent and its subsequent recovery from the extracted product by distillation or re-extraction and is characterized in that the extraction of phenol from the aqueous stream is carried out in a multistep extractor, using a ratio extracted product/refined product of between 0.1 and 1 v/v and at a temperature of between 20 DEG - 70 DEG C.