PROCESS FOR THE PRODUCTION OF DIALKYL TEREPHTHALATE

PROCESS FOR THE PRODUCTION OF DIALKYL TEREPHTHALATE

A process for preparing dialkyl terephalate comprising the following steps:-i) providing furan-2,5-dicarboxylate; ii) esterifying the furan-2,5-dicarboxylate with alcohol to form furan-2,5-carboxylic acid dialkyl ester; iii) reacting the furan-2,5-carboxylic acid dialkyl ester with ethylene under Di...

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Bibliographische Detailangaben
Hauptverfasser: THORNTHWAITE, David, William, BREEDEN, Simon, William, CLARK, James, Hanley, MCELROY, Con, Robert, OGUNJOBI, Joseph, Kolawole, FARMER, Thomas, James, MACQUARRIE, Duncan, James
Format: Patent
Sprache:eng ; fre ; ger
Schlagworte:
ACYCLIC OR CARBOCYCLIC COMPOUNDS
CHEMISTRY
HETEROCYCLIC COMPOUNDS
METALLURGY
ORGANIC CHEMISTRY
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Beschreibung
Zusammenfassung:A process for preparing dialkyl terephalate comprising the following steps:-i) providing furan-2,5-dicarboxylate; ii) esterifying the furan-2,5-dicarboxylate with alcohol to form furan-2,5-carboxylic acid dialkyl ester; iii) reacting the furan-2,5-carboxylic acid dialkyl ester with ethylene under Diels Alder conditions, elevated temperature and pressure and in the presence of a catalyst such that dialkyl terephthalate is produced; wherein the Diels-Alder reaction is free from solvent; wherein the catalyst comprises a clay comprising metal ions and having Lewis acidity.