中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

17 records (took 0.021 seconds)

    PRODUCTION OF 5-HYDROXYMETHYLFURFURAL (HMF) FROM HEXOSE SOLUTIONS IN THE PRESENCE OF STEAM
    1.
    发明专利
    PRODUCTION OF 5-HYDROXYMETHYLFURFURAL (HMF) FROM HEXOSE SOLUTIONS IN THE PRESENCE OF STEAM 未知

    公开(公告)号：CA2856864C

    公开(公告)日：2021-05-25

    申请号：CA2856864

    申请日：2012-12-11

    Applicant: BASF SE

    Inventor： BACKES RENE ,  BLANK BENOIT ,  KINDLER ALOIS ,  FELDNER CARMEN

    IPC: C07D307/46

    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).

    PROCESS FOR PREPARING FURAN-2,5-DICARBOXYLIC ACID
    3.
    发明专利
    PROCESS FOR PREPARING FURAN-2,5-DICARBOXYLIC ACID 未知

    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

    Inventor： GORDILLO ALVARO ,  WERHAN HOLGER ,  DEHN RICHARD ,  BLANK BENOIT ,  TELES JOAQUIM HENRIQUE ,  SCHUNK STEPHAN ,  PIEPENBRINK MARKUS ,  BACKES RENE ,  ZHANG LEI

    IPC: C07D307/46

    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
    6.
    发明专利
    A PROCESS FOR PREPARING FURAN-2,5-DICARBOXYLIC ACID 未知

    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

    Inventor： GORDILLO ALVARO ,  BOHN MARTIN ALEXANDER ,  SCHUNK STEPHAN A ,  JEVTOVIKJ IVANA ,  WERHAN HOLGER ,  DUFERT SVENIA ,  PIEPENBRINK MARKUS ,  BACKES RENE ,  DEHN RICHARD

    IPC: C07D307/68 ,  C07D307/46

    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).

    Verfahren zur Aufarbeitung von Pyrrolidon- und N-Vinylpyrrolidon-Rückständen im Dünnschichtverdampfer
    7.
    发明专利
    Verfahren zur Aufarbeitung von Pyrrolidon- und N-Vinylpyrrolidon-Rückständen im Dünnschichtverdampfer 未知

    公开(公告)号：DE102011080762A1

    公开(公告)日：2012-02-16

    申请号：DE102011080762

    申请日：2011-08-10

    Applicant: BASF SE

    Inventor： VOGELSANG REGINA ,  STAFFEL WOLFGANG ,  BACKES RENE ,  FRANZ LOTHAR

    IPC: C07D207/267

    Abstract: Verfahren zur Aufarbeitung von N-Vinylpyrrolidon (NVP), welches durch Umsetzung von 2-Pyrrolidon mit Acetylen hergestellt wurde, dadurch gekennzeichnet, dass – der bei der destillativen Abtrennung von N-Vinylpyrrolidon erhaltene Rückstand (im Nachfolgenden kurz „Rückstand aus der NVP-Synthese” genannt) und der Rückstand aus der 2-Pyrrolidon-Synthese, der nach Umsetzung von Ammoniak mit γ-Butyrolacton und anschließende destillative Abtrennung des 2-Pyrrolidon erhalten wurde (im Nachfolgenden kurz „Rückstand aus der Pyrrolidon-Synthese” genannt), einem Verdampfer zugeführt wird, in dem weiteres 2-Pyrrolidon aus dem im Verdampfer vereinigten Rückstand abgetrennt wird.

Patent Agency Ranking