A METHOD FOR RECOVERING AN AROMATIC ALCOHOL FROM A MELT POLYMERIZATION, AND A SYSTEM FOR RECOVERING THE SAME

In an embodiment, a method of purifying an aromatic alcohol comprises melt polymerizing a dihydroxy compound and a carbonate compound in the presence of a transesterification catalyst to form the aromatic alcohol and a polycarbonate in a melt polymerization facility; removing the aromatic alcohol in...

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Bibliographische Detailangaben
Hauptverfasser:	NADAL, Sergio Ferrer, FERNANDEZ, Ignacio Vic, BOJARSKI, Aaron David, AGUDO, Jorge A. Garcia
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	ACYCLIC OR CARBOCYCLIC COMPOUNDS CHEMISTRY COMPOSITIONS BASED THEREON MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS METALLURGY ORGANIC CHEMISTRY ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-UP
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Beschreibung
Zusammenfassung:	In an embodiment, a method of purifying an aromatic alcohol comprises melt polymerizing a dihydroxy compound and a carbonate compound in the presence of a transesterification catalyst to form the aromatic alcohol and a polycarbonate in a melt polymerization facility; removing the aromatic alcohol in an overhead stream; separating the overhead stream in an aromatic alcohol purification unit into a purified aromatic alcohol stream comprising the aromatic alcohol and a purification unit bottom stream; separating the purification unit bottom stream in a diaryl carbonate purification unit into a diaryl carbonate stream and a diaryl carbonate purification unit bottom stream; and cracking a compound in the diaryl carbonate purification unit bottom stream in a cracker unit in the presence of a cracking agent to form a resultant stream comprising additional aromatic alcohol.