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    COLUMNA CON PARED SEPARADORA PARA LA SEPARACION DE UNA MEZCLA DE VARIOS PRODUCTOS.
    13.
    发明专利
    COLUMNA CON PARED SEPARADORA PARA LA SEPARACION DE UNA MEZCLA DE VARIOS PRODUCTOS. 未知

    公开(公告)号：ES2286047T3

    公开(公告)日：2007-12-01

    申请号：ES01103686

    申请日：2001-02-23

    Applicant: BASF AG

    Inventor： BURST WOLFRAM ,  HARTMANN HORST ,  KAIBEL GERD DR ,  HARMS GUIDO DR

    IPC: B01D3/14

    Abstract: Columna con pared separadora, que está subdividida en la zona central por medio de una pared separadora (7, 8) en una parte de alimentación y en una parte de descarga, que presenta como segmentos, a) una zona superior de la columna (1), b) una sección de rectificación (2) de la parte de alimentación, c) una sección de agotamiento (4) de la parte de alimentación, d) una parte superior (3) de la parte de descarga, e) una parte inferior (5) de la parte de descarga, f) una zona intermedia (9) de la parte de alimentación, g) una zona intermedia (10) de la parte descarga y h) una zona inferior de la columna (6), estando dispuesta verticalmente la pared separadora (7) entre los segmentos b) (2) y d) (3) así como entre los segmentos c) (4) y e) (5), presentando apliques con actividad separadora los segmentos b) (2), d) (3), c) (4) y e) (5) y siendo la superficie en sección transversal Ab del segmento b) (2) al menos 10 % menor que la superficie de la sección transversal Ad del segmento d) (3), asícomo la superficie en sección transversal Ac del segmento c) (4) es mayor en un 10 % al menos que la superficie en sección transversal Ae del segmento e) (5).

    14.
    发明专利
    未知

    公开(公告)号：AT277030T

    公开(公告)日：2004-10-15

    申请号：AT01931684

    申请日：2001-05-03

    Applicant: BASF AG

    Inventor： BOETTCHER ANDREAS ,  BURST WOLFRAM

    IPC: A61K31/375 ,  A61P3/02 ,  C07B61/00 ,  C07D307/62

    Abstract: The invention relates to a process for the preparation of L-ascorbic acid, in which free 2-keto-L-gulonic acid or C3-C10-alkyl 2-keto-L-gulonate is lactonized under acidic conditions in the presence of a water-miscible solvent and where this solvent in situ forms a solvent in which the ascorbic acid formed is poorly soluble.

    15.
    发明专利
    未知

    公开(公告)号：BR0110657A

    公开(公告)日：2003-03-18

    申请号：BR0110657

    申请日：2001-05-03

    Applicant: BASF AG

    Inventor： BOETTCHER ANDREAS ,  BURST WOLFRAM

    IPC: A61K31/375 ,  A61P3/02 ,  C07B61/00 ,  C07D307/62

    Abstract: The invention relates to a process for the preparation of L-ascorbic acid, in which free 2-keto-L-gulonic acid or C3-C10-alkyl 2-keto-L-gulonate is lactonized under acidic conditions in the presence of a water-miscible solvent and where this solvent in situ forms a solvent in which the ascorbic acid formed is poorly soluble.

    16.
    发明专利
    未知

    公开(公告)号：ES2181613T3

    公开(公告)日：2003-03-01

    申请号：ES00100058

    申请日：2000-01-05

    Applicant: BASF AG

    Inventor： STREICHER HARALD DR ,  BURST WOLFRAM ,  DAUWEL JURGEN ,  KOPPENHOFER JURGEN

    IPC: C07C29/80 ,  C07C31/22

    Abstract: Production of highly pure phytantriol (I) comprises rectification of (I) in a fine vacuum in columns with ordered metal fabric packing and duct distributors with ≥ 500 dripping points/m at an angle of 90 degrees to the layer of fabric just below them. There are 2 or more, 20-100 mm high packing elements with layers of fabric at 90 degrees to one another. Strictly adiabatic rectification with absolute exclusion of air is used. Production of highly pure phytantriol (I) comprises rectification of (I) contaminated with lower and/or higher boiling by-products in a fine vacuum in columns containing metal fabric packing with ordered structure. The liquid is distributed with duct distributors with ≥ 500 dripping points/m . The ducts are at an angle of 90 degrees to the layer of fabric directly below them in the packing. There are 2 or more packing elements with a height of 20-100 mm and layers of fabric at 90 degrees to one another, below the distributor. The process is operated with absolute exclusion of air. Strictly adiabatic rectification is used.

    18.
    发明专利
    未知

    公开(公告)号：ES2138358T3

    公开(公告)日：2000-01-01

    申请号：ES96924819

    申请日：1996-06-29

    Applicant: BASF AG

    Inventor： BURST WOLFRAM ,  HARTMANN HORST ,  KAISER WULF ,  LAAS HARALD ,  GRAFEN PAUL ,  BOCKSTIEGEL BERNHARD

    IPC: B01D3/00 ,  B01D3/10 ,  B01D3/14 ,  B01D3/16 ,  B01D3/26 ,  B01D3/32 ,  B01D53/86 ,  B01D53/94 ,  B01J19/32 ,  B01J23/63 ,  B01J23/656 ,  B01J23/89 ,  C07C17/38 ,  C07D311/72

    Abstract: PCT No. PCT/EP96/02851 Sec. 371 Date Jan. 7, 1998 Sec. 102(e) Date Jan. 7, 1998 PCT Filed Jun. 29, 1996 PCT Pub. No. WO97/02890 PCT Pub. Date Jan. 30, 1997Packing elements with a low pressure drop for mass transfer column internals of the internal diameter of the column and of a height of from 40 to 300 mm made of dimensionally stable layers, which have an ordered structure and are in mutual contact, of cloth material or cloth-like material with a specific surface area of from 100 to 2000 m2/m3, wherein a) the shaped layers of cloth material or cloth-like material, preferably made of metal cloth, which are in mutual contact are arranged so that they form a multiplicity of narrow flow channels, preferably virtually triangular, virtually rectangular or else virtually equilateral hexagonal flow channels, in which the angle of inclination of the serration of the individual cloth layers of the packing to the column axis is only 0 to 25 DEG , preferably 3 to 14 DEG , and b) to ensure mechanical stability of the packing elements, if necessary wires or thin rods are fixed in suitable arrangement between the cloth layers, or else the cloth layers are firmly connected at some points of contact, and processes for obtaining pure substances from substance mixtures by rectification using the novel packing elements.

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