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    121.
    发明专利
    未知

    公开(公告)号：DK0788475T3

    公开(公告)日：1999-12-20

    申请号：DK95917966

    申请日：1995-04-26

    Applicant: BASF AG

    Inventor： HARREUS ALBRECHT ,  MAYWALD VOLKER ,  RANG HARALD ,  GITZ NORBERT ,  BORCHERS DIRK ,  HARTMANN HORST ,  HEIMANN FRANK ,  BUSCHULTE THOMAS

    IPC: B01J23/02 ,  B01J31/02 ,  C07B61/00 ,  C07C239/20 ,  C07C249/12 ,  C07C251/54 ,  C07C309/66

    Abstract: PCT No. PCT/EP95/01581 Sec. 371 Date Nov. 4, 1996 Sec. 102(e) Date Nov. 4, 1996 PCT Filed Apr. 26, 1995 PCT Pub. No. WO95/30648 PCT Pub. Date Nov. 16, 1995Preparation of mixtures of O-phenoxyalkylhydroxylamines Ia and Ib (Ia): H2NOCH2CH(R1)OAr (Ib): H2NOCH(R1)CH2OAr and the corresponding salt mixtures by a) converting mixtures of isomers of O-(2-hydroxyethyl)oximes IIa and IIb (IIa): (III): into a mixture of sulfonates IVa and IVb (IVa): (IVb): b) reacting this mixture of IVa and IVb with a phenol HO-Ar (V) to give a mixture of O-phenoxyalkoximes VIa and VIb (VIa): (VIb): c) hydrolyzing this mixture in the presence of an acid and, if desired d) liberating the O-phenoxyalkylhydroxylamines Ia and Ib from the resulting salts using a mineral acid. Compounds Ia/Ib and VIa/VIb are important intermediates for crop protection agents.

    122.
    发明专利
    未知

    公开(公告)号：AT185793T

    公开(公告)日：1999-11-15

    申请号：AT95917966

    申请日：1995-04-26

    Applicant: BASF AG

    Inventor： RANG HARALD ,  GOETZ NORBERT ,  HARREUS ALBRECHT ,  BORCHERS DIRK ,  HARTMANN HORST ,  MAYWALD VOLKER ,  HEIMANN FRANK ,  BUSCHULTE THOMAS

    IPC: B01J23/02 ,  B01J31/02 ,  C07B61/00 ,  C07C239/20 ,  C07C249/12 ,  C07C251/54 ,  C07C309/66

    Abstract: PCT No. PCT/EP95/01581 Sec. 371 Date Nov. 4, 1996 Sec. 102(e) Date Nov. 4, 1996 PCT Filed Apr. 26, 1995 PCT Pub. No. WO95/30648 PCT Pub. Date Nov. 16, 1995Preparation of mixtures of O-phenoxyalkylhydroxylamines Ia and Ib (Ia): H2NOCH2CH(R1)OAr (Ib): H2NOCH(R1)CH2OAr and the corresponding salt mixtures by a) converting mixtures of isomers of O-(2-hydroxyethyl)oximes IIa and IIb (IIa): (III): into a mixture of sulfonates IVa and IVb (IVa): (IVb): b) reacting this mixture of IVa and IVb with a phenol HO-Ar (V) to give a mixture of O-phenoxyalkoximes VIa and VIb (VIa): (VIb): c) hydrolyzing this mixture in the presence of an acid and, if desired d) liberating the O-phenoxyalkylhydroxylamines Ia and Ib from the resulting salts using a mineral acid. Compounds Ia/Ib and VIa/VIb are important intermediates for crop protection agents.

    123.
    发明专利
    未知

    公开(公告)号：DE59603300D1

    公开(公告)日：1999-11-11

    申请号：DE59603300

    申请日：1996-06-29

    Applicant: BASF AG

    Inventor： BURST WOLFRAM ,  HARTMANN HORST ,  KAISER WULF ,  LAAS HARALD ,  GRAFEN PAUL ,  BOCKSTIEGEL BERNHARD ,  BALDENIUS KAI-UWE

    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.

    125.
    发明专利
    未知

    公开(公告)号：DE59601601D1

    公开(公告)日：1999-05-12

    申请号：DE59601601

    申请日：1996-11-15

    Applicant: BASF AG

    Inventor： PAUST JOACHIM DR ,  KRIEGL WOLFGANG ,  HARTMANN HORST

    IPC: C07C45/61 ,  C07C45/82 ,  C07C49/497 ,  C07B57/00

    Abstract: Preparation of pure trans- and cis-4-hydroxy-2,2,6-trimethylcyclohexan-1-one of formulae (I) and (II) respectively comprises separation of a mixture of these isomers by fractional distillation in a column with 30-80 theoretical plates at 50-130 degrees C and 0.1-5 mbar.

    130.
    发明专利
    未知

    公开(公告)号：DE19524928A1

    公开(公告)日：1997-01-09

    申请号：DE19524928

    申请日：1995-07-08

    Applicant: BASF AG

    Inventor： HARTMANN HORST ,  BURST WOLFRAM ,  KAISER WULF DR ,  LAAS HARALD DR ,  GRAFEN PAUL DR ,  BOCKSTIEGEL BERNHARD DR ,  BALDENIUS KAI-UWE DR

    IPC: B01D3/00 ,  B01D3/10 ,  B01D3/14 ,  B01D3/16 ,  B01D3/26 ,  B01D3/32 ,  B01J19/32 ,  C07C17/38 ,  C07D311/72

    Abstract: The invention concerns a process for extracting pure substances from mixtures of high-boiling air and/or temperature-sensitive substances which require a high separative power by rectification in a fine vacuum in columns containing metal cloth packing with an ordered structure and using channel liquid separators with 500 or more draining points/m . The draining points are arranged at an angle of 90 DEG to the cloth layers of the packing elements (7, 8) located immediately below the distributors. Two or a plurality of the packing elements (7, 8) below the liquid separator (6) have only a slight height which practically ensures the exclusion of air. These packing elements are shaped such that, during rectification, no heat can be exchanged through the column wall. The invention also concerns the packing columns used for this process and the use of this process and this column for the distillative fine-purification of vitamin E acetate.

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