RECYCLING OF POLYESTER

The present invention provides a method for recycling polyethylene terephthalate (PET), the method comprising: (i) subjecting the PET to base-catalysed transesterification with a C6-C10 mono-alcohol to produce a composition comprising one or both of a mono-ester and di-ester terephthalate C6-C10mono...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	VONGSOUTHI, Vanessa, NUGENT, Jeremy, GEORGELIN, Rosemary Lee, JACKSON, Colin, SPENCE, Matthew Arthur
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	ACYCLIC OR CARBOCYCLIC COMPOUNDS AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G BEER BIOCHEMISTRY CHEMISTRY COMPOSITIONS BASED THEREON COMPOSITIONS THEREOF CULTURE MEDIA ENZYMOLOGY FERMENTATION OR ENZYME-USING PROCESSES TO SYNTHESISE A DESIREDCHEMICAL COMPOUND OR COMPOSITION OR TO SEPARATE OPTICAL ISOMERSFROM A RACEMIC MIXTURE GENERAL PROCESSES OF COMPOUNDING MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS METALLURGY MICROBIOLOGY MICROORGANISMS OR ENZYMES MUTATION OR GENETIC ENGINEERING ORGANIC CHEMISTRY ORGANIC MACROMOLECULAR COMPOUNDS PROPAGATING, PRESERVING OR MAINTAINING MICROORGANISMS SPIRITS THEIR PREPARATION OR CHEMICAL WORKING-UP VINEGAR WINE WORKING-UP
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Beschreibung
Zusammenfassung:	The present invention provides a method for recycling polyethylene terephthalate (PET), the method comprising: (i) subjecting the PET to base-catalysed transesterification with a C6-C10 mono-alcohol to produce a composition comprising one or both of a mono-ester and di-ester terephthalate C6-C10mono-alcohol derivatives; and (ii) converting the so formed one or both of mono-ester and di-ester terephthalate C6-C10mono-alcohol derivatives into terephthalic acid using an esterase.