METHOD FOR PRODUCING 1,6-HEXANEDIOL AND CAPROLACTONE

    公开(公告)号:SG174394A1

    公开(公告)日:2011-10-28

    申请号:SG2011066404

    申请日:2010-03-31

    Applicant: BASF SE

    Abstract: 25[err] for producing 1,6%.hexanedlol and caprolactone5 The invention relates to a process for preparing 1,6-hexanediol and caprclactone, preferably with at least 99.5% pdrity, which are especially virtually free of1,4-cyclohexanedlols„ from a carbiaxylic acid mixture with is obtained as a by-product of the datalytic oxklation of cyclohexane to cycl[err] with oxygen or oxygen-comprising gases and by water extraction of the reaction mixture, by10 hydrogenating the carboxylic acid mixture esteritying and hydrogenatings substreemto hexanediot and sychzing 6-hydroxycaproic ester, the 1,4-cyslohexanedlois being removed either in the course ot fractionation of the esterification mixture or last from the caprolactone. Figure 1

    22.
    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.

    Procedimiento para la preparación de épsilon-caprolactona y 1,6-hexanodiol

    公开(公告)号:ES2506465T3

    公开(公告)日:2014-10-13

    申请号:ES11749864

    申请日:2011-09-05

    Applicant: BASF SE

    Abstract: Procedimiento para la preparación de 1,6-hexanodiol y ε-caprolactona que comprende las siguientes etapas: a) esterificación de DCL con un alcohol, b) hidrogenación catalítica parcial de la mezcla de ésteres obtenida en la etapa (a), c) destilación de la descarga de hidrogenación obtenida en la etapa (b) y, con ello, separación del producto de 5 cabeza que contiene 1,6-hexanodiol, d) ciclación del éster del ácido 6-hidroxicaproico de la fracción de fondo de la etapa (c) en presencia de al menos un alcohol con un punto de ebullición, en el intervalo de presión usado, mayor que el de la ε-caprolactona, una mezcla de los mismos o una composición que contiene tales alcoholes, estando este alcohol de forma libre o también unido como parte del éster de la fracción de fondo y (e) purificación de la ε-caprolactona del destilado de la etapa (d) mediante destilación, llevándose a cabo la ciclación en la etapa (d) en la fase líquida en un aparato con columna con más de un nivel de separación teórico.

    METHODS FOR THE PRODUCTION OF e-CAPROLACTONE AND 1,6-HEXANEDIOL

    公开(公告)号:SG187942A1

    公开(公告)日:2013-03-28

    申请号:SG2013013487

    申请日:2011-09-05

    Applicant: BASF SE

    Abstract: 25Methods for the production of E-caprolactone and 1,6-hexanediol AbstractThe invention relates to processes for preparing 1,6-hexanediol and very pure E-caprolactone from a dicarboxylic acid solution (DCS), comprising the steps of (a) esterification of the DCS with alcohols, (b) partial catalytic hydrogenation of the esters, (c) distillative removal of 1,6- hexanediol and low boilers as the top product, and (d) cyclization of the 6-hydroxycaproic ester present in the bottoms fraction in the presence of a higher-boiling alcohol than caprolactone. Figure 1

    METHOD FOR PRODUCING 1,6-HEXANEDIOL

    公开(公告)号:CA2755696A1

    公开(公告)日:2010-10-14

    申请号:CA2755696

    申请日:2010-03-29

    Applicant: BASF SE

    Abstract: The invention relates to a method for producing 1,6-hexanediol, preferably of at least 99.5% purity, which hexanediol is especially substantially free from 1,4 cyclohexanediols, starting from a carboxylic acid mixture which is obtained as a byproduct of the catalytic oxidation of cyclohexane to cyclohexanone/cyclohexanol with oxygen or gases containing oxygen and by extraction of the reaction mixture with water, and by hydrogenation of the carboxylic acid mixture, esterification and hydrogenation of a partial flow to hexanediol.

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