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    PROCEDIMIENTO Y DISPOSITIVO PARA LA OBTENCION POR DESTILACION DE 1,3-BUTADIENO PURO A PARTIR DE 1,3-BUTADIENO CRUDO.
    14.
    发明专利
    PROCEDIMIENTO Y DISPOSITIVO PARA LA OBTENCION POR DESTILACION DE 1,3-BUTADIENO PURO A PARTIR DE 1,3-BUTADIENO CRUDO. 未知

    公开(公告)号：ES2292641T3

    公开(公告)日：2008-03-16

    申请号：ES01996522

    申请日：2001-11-15

    Applicant: BASF SE

    Inventor： BOHNER GERD ,  KINDLER KLAUS ,  PAHL MELANIE ,  KAIBEL GERD

    IPC: C07C11/167 ,  B01D3/14 ,  C07C7/04

    Abstract: Procedimiento para la obtención por destilación de 1, 3-butadieno puro, que contiene al menos un 99, 6 % en peso de 1, 3-butadieno, un máximo de 10 ppm de propino y un máximo de 20 ppm de 1, 2-butadieno, a partir de 1, 3-butadieno crudo, que contiene aproximadamente un 89 a un 99, 5 % en peso de 1, 3-butadieno, resto impurezas, caracterizado porque el procedimiento se lleva a cabo en una columna de pared de separación (1), en la que está dispuesta una pared separadora (8) en sentido longitudinal de la columna bajo formación de una zona de columna superior común (9), una zona de columna inferior común (14), una parte de alimentación (10, 12) y una parte de extracción (11, 13), y porque el tiempo de residencia en el evaporador de cola (7) y el correspondiente sistema de conductos tubulares se limita a 1 hasta 15 minutos.

    PROCESS FOR DISTILLATIVE WORKUP OF A METHANOL/WATER MIXTURE AND PROCESS FOR PREPARING ALKALI METAL METHOXIDES
    15.
    发明专利
    PROCESS FOR DISTILLATIVE WORKUP OF A METHANOL/WATER MIXTURE AND PROCESS FOR PREPARING ALKALI METAL METHOXIDES 未知

    公开(公告)号：CA2751983A1

    公开(公告)日：2010-09-02

    申请号：CA2751983

    申请日：2010-02-17

    Applicant: BASF SE

    Inventor： KAIBEL GERD ,  SIRCH TILMANN ,  FELDER RAIMUND ,  GUTH JOSEF

    IPC: B01D1/28 ,  B01D3/00 ,  B01D3/14 ,  C07C29/70 ,  C07C31/30

    Abstract: The invention relates to a method for the distillative processing of a methanol/water mixture, wherein a methanol/water mixture is added to a distillation column (1), a vapor stream substantially comprising methanol is removed at the head of the distillation column (1), and a bottom stream substantially comprising water is withdrawn at the base of the distillation column (1), at least part of the vapor stream substantially comprising methanol is condensed and the condensed vapor stream is added as heating vapor to an evaporator (11), in which at least part of the methanol/ water mixture to be separated is vaporized. The invention further relates to a method for producing alkali methylates in a reaction column (31), wherein methanol and alkaline lye are added to the reaction column (31). At the lower end of the reaction column (31), alkali methylate dissolved in methanol is withdrawn, and a methanol/water mixture is withdrawn at the upper end of the reaction column (31) and the methanol/water mixture is processed by way of the method for distillative processing.

    PROCESS FOR THE PREPARATION OF FORMIC ACID
    18.
    发明专利
    PROCESS FOR THE PREPARATION OF FORMIC ACID 未知

    公开(公告)号：CA2801580A1

    公开(公告)日：2012-01-05

    申请号：CA2801580

    申请日：2011-06-28

    Applicant: BASF SE

    Inventor： SCHNEIDER DANIEL ,  MOHL KLAUS-DIETER ,  SCHAEFER MARTIN ,  PICKENAECKER KARIN ,  RITTINGER STEFAN ,  SCHAUB THOMAS ,  TELES JOAQUIM HENRIQUE ,  PACIELLO ROCCO ,  KAIBEL GERD

    IPC: C07C51/44 ,  C07C51/50 ,  C07C53/02

    Abstract: The invention relates to a method for obtaining formic acid by the thermal separation of a flow containing formic acid and a tertiary amine (I), wherein a liquid flow which contains formic acid and a tertiary amine (I) in a molar ratio of 0.5 to 5 is produced by combining tertiary amine (I) and a source of formic acid, 10 to 100 wt % of the secondary components contained in said flow are separated, and formic acid is removed by distillation from the resulting liquid flow in a distillation device at a bottoms temperature of 100 to 300°C and a pressure of 30 to 3000 hPa abs, wherein the bottoms product from the distillation device is separated into two liquid phases and the upper liquid phase is returned to the source of formic acid and the lower liquid phase is returned for separation of the secondary components and/or to the distillation device.

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