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    2.
    发明专利
    未知

    公开(公告)号：ES2203138T3

    公开(公告)日：2004-04-01

    申请号：ES99923434

    申请日：1999-04-22

    Applicant: BASF AG

    Inventor： BIRNBACH STEFAN ,  DOCKNER TONI ,  MOHR JURGEN ,  BENFER REGINA ,  BIEG WALTER ,  PETERS JARREN

    IPC: C07D317/36 ,  C07D317/38

    Abstract: A process for the continuous production of 1,3-dioxolan-2-ones such as ethylene carbonate or propylene carbonate by reacting a corresponding oxirane with carbon dioxide in the liquid phase in the presence of a catalyst comprises conducting the reaction in a two-part reactor in whose first part the reaction is taken with backmixing to a conversion of not less than 80% of the oxirane II and in whose second part the reaction is completed under nonbackmixing conditions, and passing the carbon dioxide in countercurrent to the oxirane II in the entire reactor.

    3.
    发明专利
    未知

    公开(公告)号：NO166855B

    公开(公告)日：1991-06-03

    申请号：NO883506

    申请日：1988-08-05

    Applicant: BASF AG

    Inventor： BIRNBACH STEFAN ,  MUELLER JOSEF ,  WULZ KLAUS ,  HOUBEN JOCHEN

    IPC: C07C43/11 ,  C07C41/00 ,  C07C41/16 ,  C07C67/00 ,  C08G65/26 ,  C08G65/32 ,  C08G65/334

    Abstract: Etherified polyoxyalkylene derivatives of the formula where R1 is hydrogen, C1-C20-alkyl or C3-C5-alkenyl, R2 and R3 independently of one another are each hydrogen, methyl or ethyl, R4 is C1-C4-alkyl and m and n are identical or different and are each greater than or equal to 0, with the proviso that the sum of m and n is from 3 to 300, are prepared by reacting the corresponding hydroxyl-containing polyoxyalkylene derivative with a dialkyl sulfate in the presence of an alkali metal hydroxide by a process in which the reaction is carried out at from 20 DEG to 60 DEG C. in the presence of an aqueous solution of an alkali metal hydroxide, the concentration of alkali metal hydroxide during the entire duration of the reaction being not less than 35% by weight, based on the aqueous phase, and not less than 1 mole of dialkyl sulfate and not less than one mole of alkali metal hydroxide are used per mole equivalent of organic hydroxyl groups.

    5.
    发明专利
    未知

    公开(公告)号：FI883664A0

    公开(公告)日：1988-08-05

    申请号：FI883664

    申请日：1988-08-05

    Applicant: BASF AG

    Inventor： BIRNBACH STEFAN ,  MUELLER JOSEF ,  WULZ KLAUS ,  HOUBEN JOCHEN

    IPC: C07C43/11 ,  C07C41/00 ,  C07C41/16 ,  C07C67/00 ,  C08G65/26 ,  C08G65/32 ,  C08G65/334 ,  C07C

    Abstract: Etherified polyoxyalkylene derivatives of the formula where R1 is hydrogen, C1-C20-alkyl or C3-C5-alkenyl, R2 and R3 independently of one another are each hydrogen, methyl or ethyl, R4 is C1-C4-alkyl and m and n are identical or different and are each greater than or equal to 0, with the proviso that the sum of m and n is from 3 to 300, are prepared by reacting the corresponding hydroxyl-containing polyoxyalkylene derivative with a dialkyl sulfate in the presence of an alkali metal hydroxide by a process in which the reaction is carried out at from 20 DEG to 60 DEG C. in the presence of an aqueous solution of an alkali metal hydroxide, the concentration of alkali metal hydroxide during the entire duration of the reaction being not less than 35% by weight, based on the aqueous phase, and not less than 1 mole of dialkyl sulfate and not less than one mole of alkali metal hydroxide are used per mole equivalent of organic hydroxyl groups.

    8.
    发明专利
    未知

    公开(公告)号：DK438388A

    公开(公告)日：1989-02-07

    申请号：DK438388

    申请日：1988-08-05

    Applicant: BASF AG

    Inventor： BIRNBACH STEFAN ,  MUELLER JOSEF ,  WULZ KLAUS ,  HOUBEN JOCHEN

    IPC: C07C43/11 ,  C07C41/00 ,  C07C41/16 ,  C07C67/00 ,  C08G65/26 ,  C08G65/32 ,  C08G65/334

    Abstract: Etherified polyoxyalkylene derivatives of the formula where R1 is hydrogen, C1-C20-alkyl or C3-C5-alkenyl, R2 and R3 independently of one another are each hydrogen, methyl or ethyl, R4 is C1-C4-alkyl and m and n are identical or different and are each greater than or equal to 0, with the proviso that the sum of m and n is from 3 to 300, are prepared by reacting the corresponding hydroxyl-containing polyoxyalkylene derivative with a dialkyl sulfate in the presence of an alkali metal hydroxide by a process in which the reaction is carried out at from 20 DEG to 60 DEG C. in the presence of an aqueous solution of an alkali metal hydroxide, the concentration of alkali metal hydroxide during the entire duration of the reaction being not less than 35% by weight, based on the aqueous phase, and not less than 1 mole of dialkyl sulfate and not less than one mole of alkali metal hydroxide are used per mole equivalent of organic hydroxyl groups.

    10.
    发明专利
    未知

    公开(公告)号：DE59906105D1

    公开(公告)日：2003-07-31

    申请号：DE59906105

    申请日：1999-04-22

    Applicant: BASF AG

    Inventor： BIRNBACH STEFAN ,  DOCKNER TONI ,  MOHR JUERGEN ,  BENFER REGINA ,  BIEG WALTER ,  PETERS JARREN ,  RUGE BERND ,  WEINLE WERNER ,  ZEHNER PETER

    IPC: C07D317/36 ,  C07D317/38

    Abstract: A process for the continuous production of 1,3-dioxolan-2-ones such as ethylene carbonate or propylene carbonate by reacting a corresponding oxirane with carbon dioxide in the liquid phase in the presence of a catalyst comprises conducting the reaction in a two-part reactor in whose first part the reaction is taken with backmixing to a conversion of not less than 80% of the oxirane II and in whose second part the reaction is completed under nonbackmixing conditions, and passing the carbon dioxide in countercurrent to the oxirane II in the entire reactor.

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