Process for the preparation of a purified acid composition

A purified acid composition comprising 2,5-furandicarboxylic acid is prepared by a process comprising a) providing an acid composition solution of a crude acid composition in a polar solvent, the crude acid composition comprising 2,5-furandicarboxylic acid (FDCA) and 2-formyl-furan-5- carboxylic aci...

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Bibliographic Details
Main Authors De Sousa Dias, Ana Sofia Vagueiro, Zieverink, Martinus Mathilda Pieter, Almeida, Ana Rita Martins Guerreiro Rocha
Format Patent
LanguageEnglish
Published 21.02.2019
Subjects
CHEMISTRY
HETEROCYCLIC COMPOUNDS
METALLURGY
ORGANIC CHEMISTRY
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Summary:A purified acid composition comprising 2,5-furandicarboxylic acid is prepared by a process comprising a) providing an acid composition solution of a crude acid composition in a polar solvent, the crude acid composition comprising 2,5-furandicarboxylic acid (FDCA) and 2-formyl-furan-5- carboxylic acid (FFCA); b) contacting the acid composition solution with hydrogen in the presence of a hydrogenation catalyst to hydrogenate FFCA to hydrogenation products, such that the hydrogenation products contain a minor amount of 2-methyl-furan-5-carboxylic acid (MFA) or no MFA, yielding a hydrogenated solution; c) separating at least a portion of the FDCA from the hydrogenated solution by crystallization.
Bibliography:Application Number: AU20160271834