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    Process for the preparation of a furfural derivative
    2.
    发明授权
    Process for the preparation of a furfural derivative 有权

    公开(公告)号：US10351543B2

    公开(公告)日：2019-07-16

    申请号：US15736033

    申请日：2016-07-01

    申请人： Synvina C.V.

    发明人： Johannes Maria Franciscus Sijben ,  Etienne Mazoyer ,  Ana Sofia Vagueiro De Sousa Dias ,  Gerardus Johannes Maria Gruter

    IPC分类号： C07D307/50

    摘要： A furfural derivative having the chemical formula (1) wherein R represents hydrogen, an alkyl group or an acyl group, is prepared in a process, which process includes reacting a fructose- and/or glucose-containing starting material with a liquid hydroxyl group-containing compound of formula R—OH in the presence of an acid catalyst at a reaction temperature in the range of 150 to 300° C. to produce an acid reaction mixture including the furfural derivative of chemical formula (1), which acid reaction mixture has a pH-value of smaller than 3; neutralizing the acid reaction mixture to a pH-value in the range of 3 to 6.5 to provide a partially neutralized reaction mixture; and purifying the partially neutralized reaction mixture to recover the furfural derivative of chemical formula (1).

    Process for the preparation of a furfural derivative comprising neutralizing an acid reaction mixture
    3.
    发明授权
    Process for the preparation of a furfural derivative comprising neutralizing an acid reaction mixture 有权

    公开(公告)号：US10266508B2

    公开(公告)日：2019-04-23

    申请号：US15736037

    申请日：2016-07-01

    申请人： Synvina C.V.

    发明人： Johannes Maria Franciscus Sijben ,  Etienne Mazoyer ,  Ana Sofia Vagueiro De Sousa Dias ,  Gerardus Johannes Maria Gruter

    IPC分类号： C07D307/46 ,  C07D307/48

    摘要： A furfural derivative having the chemical formula (1) where R represents hydrogen, an alkyl group or an acyl group, is prepared in a process, which process includes reacting a fructose- and/or glucose-containing starting material with a liquid hydroxyl group-containing compound of formula R—OH in the presence of an acid catalyst at a reaction temperature in the range of 150 to 300° C. to produce a primary acid reaction mixture including the furfural derivative of chemical formula (1); separating part of the liquid hydroxyl group-containing compound from the primary acid reaction mixture to yield a secondary acid reaction mixture; neutralizing the secondary acid reaction mixture to a pH-value of at least 3 to obtain a neutralized reaction mixture; and purifying the neutralized reaction mixture to recover the furfural derivative of chemical formula (1).

    PROCESS FOR THE PREPARATION OF A FURFURAL DERIVATIVE COMPRISING NEUTRALIZING AN ACID REACTION MIXTURE
    4.
    发明申请
    PROCESS FOR THE PREPARATION OF A FURFURAL DERIVATIVE COMPRISING NEUTRALIZING AN ACID REACTION MIXTURE 审中-公开

    公开(公告)号：US20180186761A1

    公开(公告)日：2018-07-05

    申请号：US15736037

    申请日：2016-07-01

    申请人： Synvina C.V.

    发明人： Johannes Maria Franciscus Sijben ,  Etienne Mazoyer ,  Ana Sofia Vagueiro De Sousa Dias ,  Gerardus Johannes Maria Gruter

    IPC分类号： C07D307/48

    CPC分类号： C07D307/48 ,  C07D307/46

    摘要： A furfural derivative having the chemical formula (1) where R represents hydrogen, an alkyl group or an acyl group, is prepared in a process, which process includes reacting a fructose-and/or glucose-containing starting material with a liquid hydroxyl group-containing compound of formula R—OH in the presence of an acid catalyst at a reaction temperature in the range of 150 to 300° C. to produce a primary acid reaction mixture including the furfural derivative of chemical formula (1); separating part of the liquid hydroxyl group-containing compound from the primary acid reaction mixture to yield a secondary acid reaction mixture; neutralizing the secondary acid reaction mixture to a pH-value of at least 3 to obtain a neutralized reaction mixture; and purifying the neutralized reaction mixture to recover the furfural derivative of chemical formula (1).

    Preparation of dialkyl esters of 2,5-furandicarboxylic acid
    8.
    发明授权
    Preparation of dialkyl esters of 2,5-furandicarboxylic acid 有权

    公开(公告)号：US10053442B2

    公开(公告)日：2018-08-21

    申请号：US15525424

    申请日：2015-11-10

    申请人： Synvina C.V.

    发明人： Ana Sofia Vagueiro De Sousa Dias ,  Benjamin McKay ,  Victor Peter Charles Vreeken ,  Johannes Maria Franciscus Sijben

    IPC分类号： C07D307/02 ,  C07D307/68

    CPC分类号： C07D307/68

    摘要： Dialkyl esters of 2,5-furandicarboxylic acid are prepared from a 2,5-furandicarboxylic acid-containing starting material in a process, which includes: contacting a vaporous stream of an alkanol countercurrently with the at least partially liquid starting material having the 2,5-furandicarboxylic acid, in a reaction zone to conduct an esterification reaction to yield the dialkyl ester of 2,5-furandicarboxylic acid and water; withdrawing a reaction vapor comprising the alkanol and water from the reaction zone; and discharging a liquid phase having at least the dialkyl ester of 2,5-furandicarboxylic acid, from the bottom part of the reaction zone, to obtain the dialkyl ester of 2,5-furandicarboxylic acid.

    PROCESS FOR THE PREPARATION OF A FURFURAL DERIVATIVE
    9.
    发明申请
    PROCESS FOR THE PREPARATION OF A FURFURAL DERIVATIVE 审中-公开

    公开(公告)号：US20180170890A1

    公开(公告)日：2018-06-21

    申请号：US15736033

    申请日：2016-07-01

    申请人： Synvina C.V.

    发明人： Johannes Maria Franciscus Sijben ,  Etienne Mazoyer ,  Ana Sofia Vagueiro De Sousa Dias ,  Gerardus Johannes Maria Gruter

    IPC分类号： C07D307/50

    CPC分类号： C07D307/50

    摘要： A furfural derivative having the chemical formula (1) wherein R represents hydrogen, an alkyl group or an acyl group, is prepared in a process, which process includes reacting a fructose- and/or glucose-containing starting material with a liquid hydroxyl group-containing compound of formula R—OH in the presence of an acid catalyst at a reaction temperature in the range of 150 to 300° C. to produce an acid reaction mixture including the furfural derivative of chemical formula (1), which acid reaction mixture has a pH-value of smaller than 3; neutralizing the acid reaction mixture to a pH-value in the range of 3 to 6.5 to provide a partially neutralized reaction mixture; and purifying the partially neutralized reaction mixture to recover the furfural derivative of chemical formula (1).

    PREPARATION OF DIALKYL ESTERS OF 2,5-FURANDICARBOXYLIC ACID
    10.
    发明申请
    PREPARATION OF DIALKYL ESTERS OF 2,5-FURANDICARBOXYLIC ACID 审中-公开

    公开(公告)号：US20170313670A1

    公开(公告)日：2017-11-02

    申请号：US15525424

    申请日：2015-11-10

    申请人： Synvina C.V.

    发明人： Ana Sofia Vagueiro De Sousa Dias ,  Benjamin McKay ,  Victor Peter Charles Vreeken ,  Johannes Maria Franciscus Sijben

    IPC分类号： C07D307/68

    CPC分类号： C07D307/68

    摘要： Dialkyl esters of 2,5-furandicarboxylic acid are prepared from a 2,5-furandicarboxylic acid-containing starting material in a process, which includes: contacting a vaporous stream of an alkanol countercurrently with the at least partially liquid starting material having the 2,5-furandicarboxylic acid, in a reaction zone to conduct an esterification reaction to yield the dialkyl ester of 2,5-furandicarboxylic acid and water; withdrawing a reaction vapor comprising the alkanol and water from the reaction zone; and discharging a liquid phase having at least the dialkyl ester of 2,5-furandicarboxylic acid, from the bottom part of the reaction zone, to obtain the dialkyl ester of 2,5-furandicarboxylic acid.