43.
    发明专利
    未知

    公开(公告)号:DE502004004156D1

    公开(公告)日:2007-08-02

    申请号:DE502004004156

    申请日:2004-10-02

    Applicant: BASF AG

    Abstract: Process for separating triethanolamine continuously by distillation from a mixture of monoethanolamine, diethanolamine and triethanolamine together with ethanolamine ethers and water obtained by reaction of ammonia with ethylene oxide in the liquid phase under superatmospheric pressure and at elevated temperature, in which the mixture is distilled in two stages. The low-boiling fraction and the high-boiling fraction are taken off and discharged in the first stage and the intermediate-boiling fraction comprising >99.4% by weight of triethanolamine and

    44.
    发明专利
    未知

    公开(公告)号:DE102005038376A1

    公开(公告)日:2007-02-15

    申请号:DE102005038376

    申请日:2005-08-13

    Applicant: BASF AG

    Abstract: Continuous distillative separation of piperazine from ethylenediamine-piperazine mixture comprises subjecting the piperazine mixture into a cyclic motion, introducing the piperazine mixture into an evaporator unit at 160-170[deg]C, recycling the piperazine mixture into a distillation column and removing the piperazine from the sump of the distillation column after a retention time of approximately 30-60 minutes, where the ethylene diamine is discharged at the upper portion of the distillation column.

    SEPARACION DE LA TRIETANOLAMINA DE UNA MEZCLA OBTENIDA POR LA REACCION DEL AMONIACO CON EL OXIDO DE ETILENO.

    公开(公告)号:MXPA06003484A

    公开(公告)日:2006-06-08

    申请号:MXPA06003484

    申请日:2004-10-02

    Applicant: BASF AG

    Abstract: Se da a conocer un proceso para separar continuamente la trietanolamina, por la destilacion de una mezcla de la monoetanolamina, dietanolamina y trietanolamina, junto con los eteres de la etanolamina y el agua obtenida por la reaccion del amoniaco con el oxido de etileno en la fase liquida, bajo una presion sobreatmosferica y a temperatura elevada, en la cual la mezcla se destila en dos etapas. la fraccion de punto de ebullicion bajo y la fraccion de punto de ebullicion alta se sacan y descargan en la primera etapa y la fraccion con punto de ebullicion intermedio comprende mas del 99.4% en peso de la trietanolamina y menos del 0.2% en peso de la dietanolamina, se destila en la segunda etapa. La destilacion de la mezcla se lleva a cabo preferiblemente en una primera columna y una segunda columna, conectada a la primera columna, en una columna de pared de division.

    47.
    发明专利
    未知

    公开(公告)号:DE102004024274A1

    公开(公告)日:2005-12-01

    申请号:DE102004024274

    申请日:2004-05-15

    Applicant: BASF AG

    Abstract: Process for preparing a solution of pure triethylenediamine (TEDA), in which TEDA is vaporized, the gaseous TEDA is passed into a liquid solvent 1 (quench) and the TEDA is crystallized from the resulting solution and separated off (solid-liquid separation), wherein the crystalline TEDA obtained is dissolved in a solvent 2 and a stripping gas is passed through the resulting solution (stripping).

    50.
    发明专利
    未知

    公开(公告)号:DE10346779A1

    公开(公告)日:2005-05-12

    申请号:DE10346779

    申请日:2003-10-08

    Applicant: BASF AG

    Abstract: Process for separating triethanolamine continuously by distillation from a mixture of monoethanolamine, diethanolamine and triethanolamine together with ethanolamine ethers and water obtained by reaction of ammonia with ethylene oxide in the liquid phase under superatmospheric pressure and at elevated temperature, in which the mixture is distilled in two stages. The low-boiling fraction and the high-boiling fraction are taken off and discharged in the first stage and the intermediate-boiling fraction comprising >99.4% by weight of triethanolamine and

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