PROCESS FOR PREPARING FURAN-2,5-DICARBOXYLIC ACID

    公开(公告)号:ZA201801041B

    公开(公告)日:2021-04-28

    申请号:ZA201801041

    申请日:2018-02-15

    Applicant: BASF SE

    Abstract: A process for preparing furan-2,5-dicarboxylic acid is disclosed. The process includes the following steps: preparing or providing a starting mixture including 5-(hydroxy-methyl)furfural (HMF), 5,5′-[oxy-bis(methylene)]bis-2-furfural (di-HMF), and water; subjecting said starting mixture to oxidation conditions in the presence of an oxygen-containing gas and a catalytically effective amount of a heterogeneous catalyst including one or more noble metals on a support so that both HMF and di-HMF react to give furane-2,5-dicarboxylic acid in a product mixture also including water and oxidation by-products. The use of a catalyst is also disclosed, the catalyst including one or more noble metals on a support as an heterogeneous oxidation catalyst for catalyzing in an aqueous starting mixture the reaction of both HMF and di-HMF to furane-2,5-dicarboxylic acid.

    A PROCESS FOR PREPARING A MIXTURE COMPRISING 5-(HYDROXYMETHYL)FURFURAL AND SPECIFIC HMF ESTERS

    公开(公告)号:CA3003764A1

    公开(公告)日:2017-05-11

    申请号:CA3003764

    申请日:2016-11-03

    Applicant: BASF SE

    Abstract: The present invention relates to a process for preparing a mixture comprising 5-(hydroxy- methyl)furfural (HMF) and one or more HMF esters of formula (I, the process comprising the following steps: (A-1) preparing or providing a starting mixture comprising one, two or more carbohydrate compounds selected from the group consisting of hexoses, oligosaccharides comprising hexose units, and polysaccharides comprising hexose units, and as the solvent or as a co-solvent for said carbohydrate compounds an amount of one or more carboxylic acid esters of formula (II) (A-2) subjecting said starting mixture to reaction conditions so that at least one of said one, two or more carbohydrate compounds reacts, and a fraction of said amount of one or more carboxylic acid esters of formula (II) is hydrolyzed, so that a mixture results comprising 5-(hydroxymethyl)furfural and/or said one or more HMF esters of formula (I), one or more carboxylic acids of formula (III) and a remaining fraction of said amount of one or more carboxylic acid esters of formula (II) wherein the starting mixture prepared or provided in step (A-1) comprises a total amount of carboxylic acid esters of formula (II) of at least 50 wt.-%, based on the total weight of the starting mixture.

    PRODUCTION OF 5-HYDROXYMETHYLFURFURAL (HMF) FROM HEXOSE SOLUTIONS IN THE PRESENCE OF STEAM

    公开(公告)号:CA2856864A1

    公开(公告)日:2013-06-20

    申请号:CA2856864

    申请日:2012-12-11

    Applicant: BASF SE

    Abstract: A process for preparing 5-hydroxymethylfurfural (HMF), characterized in that a) solutions (called starting solution hereinafter) comprising a hexose and an organic solvent having a boiling point greater than 200°C (at standard pressure) (called high boilers for short) and steam are supplied to a reaction vessel, b) a conversion of the hexose to HMF in the presence of steam with simultaneous distillative removal of the HMF is effected in the reaction vessel and c) the distillate obtained is an aqueous, HMF-containing solution (called distillate hereinafter).

    16.
    发明专利
    未知

    公开(公告)号:AT478060T

    公开(公告)日:2010-09-15

    申请号:AT08761344

    申请日:2008-06-24

    Applicant: BASF SE

    Abstract: The present invention provides a process for preparing 2-methyltetrahydrofuran by one-stage hydrogenation of furfural with a hydrogen-comprising gas in the presence of a structured bed of at least one copper catalyst and at least one catalyst which comprises at least one noble metal from groups 8, 9 and/or 10 of the periodic table of the elements applied on a support material.

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