RECOVERY OF PHENOL AND ACETONE FROM BISPHENOL-A STREAMS

RECOVERY OF PHENOL AND ACETONE FROM BISPHENOL-A STREAMS

IN A METHOD OF RECOVERING PHENOL AND ACETONE FROM A FEED STREAM CONTAINING BISPHENOL-A AND ISOMERS THEREOF, THE FEED STREAM IS CONTACTED WITH WATER AND A SOURCE OF HYDROXYL IONS UNDER CONDITIONS EFFECTIVE TO DECOMPOSE AT LEAST PART OF SAID BISPHENOL-A AND ISOMERS THEREOF TO PHENOL AND ACETONE. THE C...

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Bibliographische Detailangaben
Hauptverfasser: CHI, CHUNG-MING, FETSKO, STEPHEN, EVITT, STEVEN, PALMER, DAVID
Format: Patent
Sprache:eng
Schlagworte:
ACYCLIC OR CARBOCYCLIC COMPOUNDS
CHEMISTRY
METALLURGY
ORGANIC CHEMISTRY
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Beschreibung
Zusammenfassung:IN A METHOD OF RECOVERING PHENOL AND ACETONE FROM A FEED STREAM CONTAINING BISPHENOL-A AND ISOMERS THEREOF, THE FEED STREAM IS CONTACTED WITH WATER AND A SOURCE OF HYDROXYL IONS UNDER CONDITIONS EFFECTIVE TO DECOMPOSE AT LEAST PART OF SAID BISPHENOL-A AND ISOMERS THEREOF TO PHENOL AND ACETONE. THE CONDITIONS INCLUDE A TEMPERATURE OF ABOUT 150 °C TO 300 °C, A PRESSURE SUFFICIENT TO KEEP THE WATER SUBSTANTIALLY IN THE LIQUID PHASE AT SAID TEMPERATURE, AND A MOLAR RATIO OF HYDROXYL IONS TO HYDROXYPHENYL GROUPS IN THE RESIDUE STREAM FROM 0.3:1 TO 0.9:1. (FIG. 1)