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    METHOD FOR THE PREPARATION OF CYCLOHEXANOL
    3.
    发明专利
    METHOD FOR THE PREPARATION OF CYCLOHEXANOL 未知

    公开(公告)号：CA1140594A

    公开(公告)日：1983-02-01

    申请号：CA357158

    申请日：1980-07-28

    Applicant: STAMICARBON

    Inventor： VAN GEEM PAUL C ,  DE GRAAF THEODORUS F M ,  KNOL DIRK ,  PLANTEMA OTTO G

    IPC: B01J23/00 ,  C07B61/00 ,  C07C5/11 ,  C07C27/00 ,  C07C29/04 ,  C07C29/05 ,  C07C29/06 ,  C07C29/08 ,  C07C35/08 ,  C07C45/34 ,  C07C45/39 ,  C07C67/00 ,  C07C49/403

    Abstract: The invention relates to a method for the preparation of cyclohexanol and/or cyclohexanone by hydrogenating benzene to cyclohexene, hydrating the cyclohexene to cyclohexanol and/or oxidating it to cyclohexanone, recovering the cyclohexanol and/or cyclohexanone, and returning unconverted benzene and/or cyclohexene to the hydrogenating stop. The method according to the invention is characterized in that the mixture of cyclohexane with benzene and/or cyclohexene, which has also been obtained during the separation of cyclohexanol from the reaction mixture of the hydration step and/or cyclohexanone from the reaction mixture of the oxidation step, is subjected to a dehydrogenation reaction, and the benzene thus obtained is returned to the hydrogenation step. The method according to the invention has the great advantage that the difficult separation of cyclohexane from mixtures with benzene and/or cyclohexene can be dispensed with . Losses of expensive extractive distillation agent are avoided. Neither is any cyclohexane left as byproduct for wich a use will have to be found. In the hydrogenation step a higher degree of benzene conversion can be applied, so that economic process operation has become possible.

    IMPROVED METHOD FOR THE PREPARATION OF CYCLOHEXANOL
    6.
    发明专利
    IMPROVED METHOD FOR THE PREPARATION OF CYCLOHEXANOL 未知

    公开(公告)号：IN152656B

    公开(公告)日：1984-03-03

    申请号：IN897CA1980

    申请日：1980-08-06

    Applicant: STAMICARBON

    Inventor： GREEM PAUL CHRISTIAAN VAN ,  DE GRAAF THEODORUS FRANCISCUS ,  KNOL DIRK ,  PLANTEMA OTTO GERRIT

    IPC: B01J23/00 ,  C07B61/00 ,  C07C5/11 ,  C07C27/00 ,  C07C29/04 ,  C07C29/05 ,  C07C29/06 ,  C07C29/08 ,  C07C35/08 ,  C07C45/34 ,  C07C45/39 ,  C07C67/00 ,  C07C35/18 ,  C07C49/30

    Abstract: The invention relates to a method for the preparation of cyclohexanol and/or cyclohexanone by hydrogenating benzene to cyclohexene, hydrating the cyclohexene to cyclohexanol and/or oxidating it to cyclohexanone, recovering the cyclohexanol and/or cyclohexanone, and returning unconverted benzene and/or cyclohexene to the hydrogenating step.The method according to the invention is characterized in that the mixture of cyclohexane with benzene and/or cyclohexene, which has also been obtained during the separation of cyclohexanol from the reaction mixture of the hydration step and,or of cyclohexanone from the reaction mixture of the oxidation step, is subjected to a dehydrogenation reaction, and the benzene thus obtained is returned to the hydrogenation step.The method according to the invention has the great advantage that the difficult separation of cyclohexane from mixtures with benzene and / or cyclohexene can be dispensed with. Losses of expensive extractive distillation agent are avoided. Neither is any cyclohexane left as by-product for wich a use will have to be found. In the hydrogenation step a higher degree of benzene conversion can be applied, so that economic process operation has become possible.

    METHOD FOR THE PREPARATION OF CYCLOHEXANOL AND/OR CYCLOHEXANONE
    8.
    发明专利
    METHOD FOR THE PREPARATION OF CYCLOHEXANOL AND/OR CYCLOHEXANONE 未知

    公开(公告)号：DE3064406D1

    公开(公告)日：1983-09-01

    申请号：DE3064406

    申请日：1980-07-25

    Applicant: STAMICARBON

    Inventor： VAN GEEM PAUL CHRISTIAAN ,  DE GRAAF THEODORUS FRANCISCUS ,  KNOL DIRK ,  PLANTEMA OTTO GERRIT

    IPC: B01J23/00 ,  C07B61/00 ,  C07C5/11 ,  C07C27/00 ,  C07C29/04 ,  C07C29/05 ,  C07C29/06 ,  C07C29/08 ,  C07C35/08 ,  C07C45/34 ,  C07C45/39 ,  C07C67/00 ,  C07C49/403

    Abstract: The invention relates to a method for the preparation of cyclohexanol and/or cyclohexanone by hydrogenating benzene to cyclohexene, hydrating the cyclohexene to cyclohexanol and/or oxidating it to cyclohexanone, recovering the cyclohexanol and/or cyclohexanone, and returning unconverted benzene and/or cyclohexene to the hydrogenating step.The method according to the invention is characterized in that the mixture of cyclohexane with benzene and/or cyclohexene, which has also been obtained during the separation of cyclohexanol from the reaction mixture of the hydration step and,or of cyclohexanone from the reaction mixture of the oxidation step, is subjected to a dehydrogenation reaction, and the benzene thus obtained is returned to the hydrogenation step.The method according to the invention has the great advantage that the difficult separation of cyclohexane from mixtures with benzene and / or cyclohexene can be dispensed with. Losses of expensive extractive distillation agent are avoided. Neither is any cyclohexane left as by-product for wich a use will have to be found. In the hydrogenation step a higher degree of benzene conversion can be applied, so that economic process operation has become possible.

    METHOD OF PREPARATION OF THE CYCLOHEXANOLE OR CYCLOHEXANONE
    9.
    发明专利
    METHOD OF PREPARATION OF THE CYCLOHEXANOLE OR CYCLOHEXANONE 未知

    公开(公告)号：CS220799B2

    公开(公告)日：1983-04-29

    申请号：CS526180

    申请日：1980-07-25

    Applicant: STAMICARBON

    Inventor： VAN GREEM PAUL CH ,  DE GRAFF THEODORUS F ,  KNOL DIRK ,  PLANTEMA OTTO G

    IPC: B01J23/00 ,  C07B61/00 ,  C07C5/11 ,  C07C27/00 ,  C07C29/04 ,  C07C29/05 ,  C07C29/06 ,  C07C29/08 ,  C07C35/08 ,  C07C45/34 ,  C07C45/39 ,  C07C67/00

    Abstract: The invention relates to a method for the preparation of cyclohexanol and/or cyclohexanone by hydrogenating benzene to cyclohexene, hydrating the cyclohexene to cyclohexanol and/or oxidating it to cyclohexanone, recovering the cyclohexanol and/or cyclohexanone, and returning unconverted benzene and/or cyclohexene to the hydrogenating step.The method according to the invention is characterized in that the mixture of cyclohexane with benzene and/or cyclohexene, which has also been obtained during the separation of cyclohexanol from the reaction mixture of the hydration step and,or of cyclohexanone from the reaction mixture of the oxidation step, is subjected to a dehydrogenation reaction, and the benzene thus obtained is returned to the hydrogenation step.The method according to the invention has the great advantage that the difficult separation of cyclohexane from mixtures with benzene and / or cyclohexene can be dispensed with. Losses of expensive extractive distillation agent are avoided. Neither is any cyclohexane left as by-product for wich a use will have to be found. In the hydrogenation step a higher degree of benzene conversion can be applied, so that economic process operation has become possible.

    10.
    发明专利
    未知

    公开(公告)号：DD152534A5

    公开(公告)日：1981-12-02

    申请号：DD22287880

    申请日：1980-07-25

    Applicant: STAMICARBON

    Inventor： VAN GEEM PAUL C ,  DE GRAAF THEODORUS F M ,  KNOL DIRK ,  PLANTEMA OTTO G

    IPC: B01J23/00 ,  C07B61/00 ,  C07C5/11 ,  C07C27/00 ,  C07C29/04 ,  C07C29/05 ,  C07C29/06 ,  C07C29/08 ,  C07C35/08 ,  C07C45/34 ,  C07C45/39 ,  C07C67/00

    Abstract: The invention relates to a method for the preparation of cyclohexanol and/or cyclohexanone by hydrogenating benzene to cyclohexene, hydrating the cyclohexene to cyclohexanol and/or oxidating it to cyclohexanone, recovering the cyclohexanol and/or cyclohexanone, and returning unconverted benzene and/or cyclohexene to the hydrogenating step.The method according to the invention is characterized in that the mixture of cyclohexane with benzene and/or cyclohexene, which has also been obtained during the separation of cyclohexanol from the reaction mixture of the hydration step and,or of cyclohexanone from the reaction mixture of the oxidation step, is subjected to a dehydrogenation reaction, and the benzene thus obtained is returned to the hydrogenation step.The method according to the invention has the great advantage that the difficult separation of cyclohexane from mixtures with benzene and / or cyclohexene can be dispensed with. Losses of expensive extractive distillation agent are avoided. Neither is any cyclohexane left as by-product for wich a use will have to be found. In the hydrogenation step a higher degree of benzene conversion can be applied, so that economic process operation has become possible.

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