PROCESS FOR PREPARING FURAN-2,5-DICARBOXYLIC ACID

    公开(公告)号:CA2991075A1

    公开(公告)日:2017-01-26

    申请号:CA2991075

    申请日:2016-07-01

    Applicant: BASF SE

    Abstract: The present invention relates to a process forpreparingfuran-2,5-dicarboxylic acid, comprising the following steps: preparing or providing a starting mixture comprising5-(hydroxymethyl)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 comprising 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 comprising water and oxidation by-products. Moreover the present invention relates to the use of a catalyst comprising 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 FURAN-2,5-DICARBOXYLIC ACID

    公开(公告)号:CA3003762A1

    公开(公告)日:2017-05-11

    申请号:CA3003762

    申请日:2016-11-03

    Applicant: BASF SE

    Abstract: The present invention relates to a process for preparing furan-2,5-dicarboxylic acid, 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).

    Processo para preparação de ácido furan-2,5- dicarboxílico e uso de um catalisador

    公开(公告)号:BR112018000606B1

    公开(公告)日:2022-01-18

    申请号:BR112018000606

    申请日:2016-07-01

    Applicant: BASF SE

    Abstract: processo para a preparação de ácido furan-2,5- dicarboxílico e utilização de um catalisador. a presente invenção se refere a um processo para a preparação de ácido furan-2,5-dicarboxílico, que compreende as seguintes etapas: a preparação ou fornecimento de uma mistura de partida que compreende o 5- (hidroximetil)furfural (hmf), 5,5’-[oxi-bis(metileno)]bis-2-furfural (di-hmf) e água, a submissão de dita mistura de partida em condições de oxidação na presença de um gás que contém o oxigênio e uma quantidade catalisticamente eficaz de um catalisador heterogêneo que compreende um ou mais metais nobres em um suporte de maneira que ambos hmf e di-hmf reagem para fornecer o ácido furan-2,5-dicarboxílico em uma mistura de produtos que também compreende a água e os subprodutos de oxidação. além disso, a presente invenção se refere à utilização de um catalisador que compreende um ou mais metais nobres sobre um suporte como um catalisador de oxidação heterogêneo para catalisar em uma mistura de partida aquosa a reação do hmf e do di-hmf para o ácido furan-2,5-dicarboxílico.

    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.

    PROCESS FOR THE PREPARATION OF 5-HYDROXYMETHYLFURFURAL (HMF)

    公开(公告)号:CA2914308A1

    公开(公告)日:2014-12-18

    申请号:CA2914308

    申请日:2014-06-11

    Applicant: BASF SE

    Abstract: A process is described for the preparation of 5-hydroxymethylfurfural (HMF), which comprises the following steps: provision or preparation of a starting mixture, comprising one, two or more starting compounds selected from the group consisting of hexoses, oligosaccharides comprising hexose units, and polysaccharides comprising hexose units, one, two or more organic salts with a melting point 200°C at 1013.25 hPa, optionally additionally one or more catalysts for the conversion of the one starting compound or at least one of the two or more starting compounds to 5-hydroxymethylfurfural (HMF), optionally water, optionally further substances, adjustment of reaction conditions such that an amount of the starting compound or starting compounds converts to HMF.

    Procedimiento para preparar ácido furan-2,5-dicarboxílico

    公开(公告)号:ES2781329T3

    公开(公告)日:2020-09-01

    申请号:ES16733103

    申请日:2016-07-01

    Applicant: BASF SE

    Abstract: Procedimiento de preparación de ácido furan-2,5-dicarboxílico que comprende la siguiente etapa: (a) preparar o proporcionar una mezcla de partida que comprende 5-(hidroximetil)furfural (HMF), 5,5'-[oxi-bis(metileno)]bis-2-furfural (di-HMF), y agua, en el que la cantidad total de agua en la mezcla de partida es de al menos 50% en peso en base al peso total de la mezcla de partida, y en el que el pH de la mezcla de partida está en el intervalo de 4,0 a 7,0, (b) someter dicha mezcla de partida a condiciones de oxidación en presencia de un gas que contiene oxígeno y una cantidad catalíticamente eficaz de un catalizador heterogéneo que comprende uno o más metales nobles en un soporte, para que ambos, HMF y di-HMF, se hagan reaccionar para dar ácido furano-2,5-dicarboxílico en una mezcla de producto que también comprende agua.

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