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    METHOD FOR THE PRODUCTION OF 1,6-HEXANEDIOL
    1.
    发明申请
    METHOD FOR THE PRODUCTION OF 1,6-HEXANEDIOL 审中-公开
    制备1,6-己二醇的方法

    公开(公告)号：WO2004026798A3

    公开(公告)日：2004-05-27

    申请号：PCT/EP0310288

    申请日：2003-09-16

    Applicant: BASF AG ,  STEIN FRANK ,  KRUG THOMAS ,  NOEBEL THOMAS ,  GALL MARTIN

    Inventor： STEIN FRANK ,  KRUG THOMAS ,  NOEBEL THOMAS ,  GALL MARTIN

    IPC: C07C29/149 ,  C07C31/20 ,  C07D313/04

    CPC classification number: C07C29/149 ,  C07C31/20

    Abstract: The invention relates to a method for producing 1,6-hexanediol and, optionally, e-caprolactone. According to the inventive method, the carboxylic acid obtained by oxidizing cyclohexane is esterified, the esterified mixture is separated into an ester fraction and a bottom fraction, and the ester fraction is hydrated so as to obtain 1,6-hexanediol. The bottom fraction is hydrolyzed with water and is returned into the esterified mixture. Hydrolyzing the bottom fraction with water allows the method to be simplified while preventing metal oxides from being emitted and being deposited on parts of the installation, a phenomenon that occurs during reprocessing of the bottom fraction by means of reesterification.

    Abstract translation: 本发明涉及一种制备1,6-己二醇和任选的（己内酯，其中酯化从环己烷羧酸混合物中得到的产物，酯化混合物分离成Esterfraktion和底部馏分和氢化Esterfraktion成1,6-己二醇 。将所述底部馏分水解与水和再循环至酯化反应。与水的塔底馏分的水解，简化了工艺并如通过酯交换在塔底馏分的后处理进行金属氧化物的排放和金属氧化物的所述植物的部分的沉积，避免 ，

    4.
    发明专利
    未知

    公开(公告)号：ES2218186T3

    公开(公告)日：2004-11-16

    申请号：ES00949204

    申请日：2000-06-21

    Applicant: BASF AG

    Inventor： STEIN FRANK ,  KRUG THOMAS ,  NOBEL THOMAS ,  RUST HARALD

    IPC: C07B61/00 ,  C07C29/149 ,  C07C31/20

    Abstract: A process for preparing 1,6-hexanediol from a carboxylic acid mixture comprising adipic acid, 6-hydroxycaproic acid and small amounts of 1,4-cyclohexanediols which is obtained as by-product in the oxidation of cyclohexane to cyclohexanone/cyclohexanol after water extraction of the reaction mixture followed by extraction with aqueous sodium hydroxide solution, by esterification of the acids and hydrogenation comprisesa) liberating the carboxylic acids from the alkaline extract by addition of a mineral acid,b) fractionating the organic phase comprising carboxylic acids to give a distillate comprising the low molecular weight monocarboxylic acids and a residue comprising adipic acid and 6-hydroxycaproic acid,c) reacting the monocarboxylic an dicarboxylic acids present in the aqueous dicarboxylic acid mixture with a low molecular weight alcohol to give the corresponding carboxylic esters,d) freeing the esterification mixture obtained of excess alcohol and low boilers in a first distillation step,e) fractionating the bottom product in a second distillation step to give an ester fraction essentially free of 1,4-cyclohexanediols and a fraction comprising at least the major part of the 1,4-cyclohexanediols,f) catalytically hydrogenating the ester fraction which is essentially free of 1,4-cyclohexanediols andg) isolating 1,6-hexanediol from the hydrogenation product in a manner known per se in a final distillation step.

    5.
    发明专利
    未知

    公开(公告)号：ES2203112T3

    公开(公告)日：2004-04-01

    申请号：ES99915756

    申请日：1999-04-12

    Applicant: BASF AG

    Inventor： BREITSCHEIDEL BORIS ,  PINKOS ROLF ,  STEIN FRANK

    IPC: B01J23/72 ,  C07B61/00 ,  C07C29/149 ,  C07C31/20

    Abstract: Hexanediol is prepared by hydrogenating dialkyl adipates or mixtures which contain a dialkyl adipate as the essential component and organic halogen compounds as impurities, by a process in which, before the hydrogenation, the dialkyl adipates or the mixtures containing dialkyl adipates are passed at from 50 to 250° C. and from 1 to 100 bar over copper catalysts which have a copper content, calculated as CuO, of from 0.5 to 80% by weight, a surface area of from 5 to 1500 m2/g, a porosity of from 0.05 to 1.5 cm3/g and a copper surface area of from 0.1 to 20 m2/g, in order to remove the organic halogen compounds.

    7.
    发明专利
    未知

    公开(公告)号：ES2195440T3

    公开(公告)日：2003-12-01

    申请号：ES98964487

    申请日：1998-12-04

    Applicant: BASF AG

    Inventor： DOSTALEK ROMAN ,  FISCHER ROLF HARTMUTH ,  KRUG THOMAS ,  PAUL AXEL ,  PINKOS ROLF ,  STEIN FRANK

    IPC: C07B61/00 ,  C07C29/149 ,  C07C29/17 ,  C07C31/13 ,  C07C31/20 ,  C07C31/27

    Abstract: The invention relates to a method for catalytically hydrogenating carboxylic acids or the anhydrides or esters thereof into alcohol on heterogeneous catalysts containing hydrogenating elements of groups 6, 7, 8, 9, 10 and 11 and optionally groups 2, 14 and 15 of the periodic table of elements or consisting thereof, in a liquid phase at temperatures of 100-300 DEG C and at pressures of 10-300 bars, whereby 1-3,000 ppm of a basic alkali or earth-alkaline compound in relation to the liquid hydrogenating feed and selected from a group consisting of hydroxides, carbonates, carboxylates and alcoholates is added to the hydrogenating reaction mixture.

    8.
    发明专利
    未知

    公开(公告)号：DE59907204D1

    公开(公告)日：2003-11-06

    申请号：DE59907204

    申请日：1999-05-10

    Applicant: BASF AG

    Inventor： LIANG SHELUE ,  FISCHER ROLF ,  STEIN FRANK ,  WULFF-DOERING JOACHIM

    IPC: B01J23/10 ,  C07B61/00 ,  C07C49/297 ,  C07C45/48

    Abstract: A process for preparing cyclopentanone by reacting adipic esters of the formulawhere R1 and R2 are each alkyl having from 1 to 12 carbon atoms, cycloalkyl having 5 or 6 carbon atoms, aralkyl or aryl and R2 may additionally be hydrogen, in the presence of oxidic catalysts comprises reacting adipic esters of the formula I having less than 5% by weight of by-products other than adipic esters in the gas phase in the presence of water, a carrier gas anda) from 0.01 to 10% by weight of at least one metal oxide selected from the first or second main group of the periodic table or from the group of the rare earth metals on titanium dioxide or zirconium dioxide as catalyst support, orb) from 0.01 to 50% by weight of at least one metal oxide selected from the second main group of the periodic table on zink oxide as catalyst support.

    9.
    发明专利
    未知

    公开(公告)号：DE59906012D1

    公开(公告)日：2003-07-24

    申请号：DE59906012

    申请日：1999-04-12

    Applicant: BASF AG

    Inventor： BREITSCHEIDEL BORIS ,  PINKOS ROLF ,  STEIN FRANK

    IPC: B01J23/72 ,  C07B61/00 ,  C07C29/149 ,  C07C31/20

    Abstract: Hexanediol is prepared by hydrogenating dialkyl adipates or mixtures which contain a dialkyl adipate as the essential component and organic halogen compounds as impurities, by a process in which, before the hydrogenation, the dialkyl adipates or the mixtures containing dialkyl adipates are passed at from 50 to 250° C. and from 1 to 100 bar over copper catalysts which have a copper content, calculated as CuO, of from 0.5 to 80% by weight, a surface area of from 5 to 1500 m2/g, a porosity of from 0.05 to 1.5 cm3/g and a copper surface area of from 0.1 to 20 m2/g, in order to remove the organic halogen compounds.

    10.
    发明专利
    未知

    公开(公告)号：DE59807773D1

    公开(公告)日：2003-05-08

    申请号：DE59807773

    申请日：1998-12-04

    Applicant: BASF AG

    Inventor： DOSTALEK ROMAN ,  FISCHER HARTMUTH ,  KRUG THOMAS ,  PAUL AXEL ,  PINKOS ROLF ,  STEIN FRANK

    IPC: C07B61/00 ,  C07C29/149 ,  C07C29/17 ,  C07C31/13 ,  C07C31/20 ,  C07C31/27

    Abstract: The invention relates to a method for catalytically hydrogenating carboxylic acids or the anhydrides or esters thereof into alcohol on heterogeneous catalysts containing hydrogenating elements of groups 6, 7, 8, 9, 10 and 11 and optionally groups 2, 14 and 15 of the periodic table of elements or consisting thereof, in a liquid phase at temperatures of 100-300 DEG C and at pressures of 10-300 bars, whereby 1-3,000 ppm of a basic alkali or earth-alkaline compound in relation to the liquid hydrogenating feed and selected from a group consisting of hydroxides, carbonates, carboxylates and alcoholates is added to the hydrogenating reaction mixture.

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