Process for the manufacture of furan-2,5-dicarboxaldehyde

FURCHIM [FR] (1990) Process for the manufacture of furan-2,5-dicarboxaldehyde. FR19900014833 19901122 ; FR2669636 (B1) .

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    The invention relates to a process for the manufacture of high purity furan-2,5-dicarboxaldehyde (FDC). This process consists in synthesising hydroxymethylfurfural (HMF) by mixing one or more sugars in a solvent of DMSO type and by heating the mixture and in then converting the HMF obtained to FDC in the reaction mixture in the presence of an electrophilic agent. The process is characterised in that, at the end of the synthesis of the HMF, a third solvent, especially diethyl ketone (DEK), is added to the mixture and, after conversion of the HMF, water is added to the reaction mixture with a view to creating a liquid aqueous phase which will dissolve the DMSO. The FDC formed dissolves in the liquid organic phase and can be easily separated from the latter in order to obtain a stable compound of high purity.

    Item Type: Patent
    Subjects: T Technology > TP Chemical technology
    Divisions: Faculty of Engineering > Department of Chemical Engineering
    Depositing User: Budi Santoso
    Date Deposited: 05 Dec 2013 22:10
    Last Modified: 05 Dec 2013 22:12

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