processo para a preparação de 1,4-ciclo-hexanodimetanol a partir de ácido

processo para a preparação de 1,4-ciclo-hexanodimetanol a partir de ácido

Disclosed is a process for the preparation of 1,4-cyclohexanedimethanol from terephthalic acid. Terephthalic acid is esterified with (4-methylcyclohexyl)methanol and the terephthalate ester hydrogenated to 1,4-cyclohexanedimethanol in a 2-stage process. The (4-methylcyclohexyl)methanol that is forme...

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Bibliographische Detailangaben
Hauptverfasser: PHILLIP WAYNE TURNER, DAMON BRYAN SHACKELFORD, STEVEN LEROY COOK, JEFF SCOTT HOWELL, BRENT ALAN TENNANT, BENJAMIN FREDRICK BARTON, NOAH GLENN MCMILLAN
Format: Patent
Sprache:por
Schlagworte:
ACYCLIC OR CARBOCYCLIC COMPOUNDS
CHEMISTRY
METALLURGY
ORGANIC CHEMISTRY
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Beschreibung
Zusammenfassung:Disclosed is a process for the preparation of 1,4-cyclohexanedimethanol from terephthalic acid. Terephthalic acid is esterified with (4-methylcyclohexyl)methanol and the terephthalate ester hydrogenated to 1,4-cyclohexanedimethanol in a 2-stage process. The (4-methylcyclohexyl)methanol that is formed during the hydrogenation step is recycled to the esterification reaction. Also disclosed is a method for purifying and recovering the 1,4-cyclohexanedimethanol product.