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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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公开(公告)号：DK0775107T3
公开(公告)日：1999-12-27
申请号：DK95930419
申请日：1995-07-28
Applicant: BASF AG
Inventor： HARREUS ALBRECHT , RANG HARALD , GITZ NORBERT , MOHR JUERGEN , HARTMANN HORST , GEHRER EUGEN , LAUTH GUENTER
IPC: B01J31/02 , C07B61/00 , C07C249/12 , C07C251/38 , C07C251/44 , C07C251/54
Abstract: Preparation of O-(2-hydroxyalkyl) oximes of formula (I), (R and R are alkyl or R and R and the common C atom are 5-membered to 7-membered cycloalkyl; R is alkyl) by causing a ketoxime II to react with an olefin oxide III in the presence of a tertiary amine or with a carbonate IV in the presence of a catalyst. The end products (I) are suitable for use as intermediates for crop protection agents.
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公开(公告)号：HU211452B
公开(公告)日：1995-11-28
申请号：HU9302798
申请日：1993-10-04
Applicant: BASF AG
Inventor： BUSCHMANN ERNST , GOETZ NORBERT , KLEIN ULRICH , KEIL MICHAEL , HARTMANN HORST
IPC: C07C239/20
Abstract: O-Substituted hydroxylammonium salts are prepared by hydrolysis of acetone oxime ethers with acid in the presence of an additive and removal of acetone and water by distillation with the aid of the additive.
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公开(公告)号：DE59106173D1
公开(公告)日：1995-09-14
申请号：DE59106173
申请日：1991-02-09
Applicant: BASF AG
Inventor： ZIMMERMANN HORST DR , BRENNER KARL , SCHEIPER HANS-JUERGEN , SAUER WOLFGANG DR , HARTMANN HORST
IPC: C07D307/08 , C07D307/32 , C07D307/33 , C07D315/00
Abstract: Process for the preparation of THF or of THF and gamma -butyrolactone from the hydrogenation product of the hydrogenation of maleic acid, succinic acid, maleic anhydride, succinic anhydride and/or fumaric acid by treating the crude hydrogenation product without prior workup at 100 to 300 DEG C with proton acids and isolating pure tetrahydrofuran and gamma -butyrolactone from the reaction mixture obtained by distillation.
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公开(公告)号：BR9303975A
公开(公告)日：1994-06-07
申请号：BR9303975
申请日：1993-09-30
Applicant: BASF AG
Inventor： KLEIN ULRICH , BUSCHMANN ERNST , KEIL MICHAEL , GOETZ NORBERT , HARTMANN HORST
IPC: C07C239/20 , C07C217/26
Abstract: O-Substituted hydroxylammonium salts are prepared by hydrolysis of acetone oxime ethers with acid in the presence of an additive and removal of acetone and water by distillation with the aid of the additive.
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Patent Agency Ranking
公开(公告)号：FI82924C
公开(公告)日：1991-05-10
申请号：FI841946
申请日：1984-05-15
Applicant: BASF AG
Inventor： BOTT KASPAR , KAIBEL GERD , HARTMANN HORST , IRNICH RUDOLF , BUELOW HORST
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公开(公告)号：DK157311B
公开(公告)日：1989-12-11
申请号：DK334188
申请日：1988-06-17
Applicant: BASF AG
Inventor： HORN DIETER , SCHMIDT HANS WILHELM , DITTER WALTER , HARTMANN HORST , LUEDDECKE ERIK , SCHMIEDER KLAUS
Abstract: Finely divided, pulverulent carotinoid or retinoid compositions, in which the carotinoid or retinoid essentially has a particle size of less than 0.5 micron, are prepared by a process wherein a carotinoid or retinoid is dissolved in a volatile, water-miscible, organic solvent at from 50 DEG C. to 200 DEG C., if necessary under superatmospheric pressure, within the space of less than 10 seconds. The carotinoid is immediately precipitated, in a colloidally disperse form, from the molecularly disperse solution by rapidly mixing the latter with an aqueous solution of a swellable colloid at from 0 DEG C. to 50 DEG C., and the resulting dispersion is freed from the solvent and the dispersing medium in a conventional manner.
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公开(公告)号：DK154395C
公开(公告)日：1989-04-10
申请号：DK216082
申请日：1982-05-13
Applicant: BASF AG
Inventor： HORN DIETER , SCHMIDT HANS WILHELM , DITTER WALTER , HARTMANN HORST , LUEDDECKE ERIK , SCHMIEDER KLAUS
Abstract: Finely divided, pulverulent carotinoid or retinoid compositions, in which the carotinoid or retinoid essentially has a particle size of less than 0.5 micron, are prepared by a process wherein a carotinoid or retinoid is dissolved in a volatile, water-miscible, organic solvent at from 50 DEG C. to 200 DEG C., if necessary under superatmospheric pressure, within the space of less than 10 seconds. The carotinoid is immediately precipitated, in a colloidally disperse form, from the molecularly disperse solution by rapidly mixing the latter with an aqueous solution of a swellable colloid at from 0 DEG C. to 50 DEG C., and the resulting dispersion is freed from the solvent and the dispersing medium in a conventional manner.
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公开(公告)号：DE3728242A1
公开(公告)日：1989-03-09
申请号：DE3728242
申请日：1987-08-25
Applicant: BASF AG
Inventor： BOTT KASPAR DR , HARTMANN HORST , GUTH JOSEF
Abstract: Carboxylic esters are prepared by reacting carboxylic acids with low-boiling alcohols by charging the reaction mixture to a 1st distillation column, withdrawing the reaction components carboxylic ester, water and unconverted alcohol as overhead product and charging this overhead product to a 2nd distillation column, from which (a) the overhead product comprises the alcohol or an azeotropic mixture of alcohol and water or alcohol and esteer, this overhead product being recycled into the esterification reaction (b) a liquid side product comprising carboxylic ester and water is withdrawn from the stripping section and separated in a phase separating vessel into water and carboxylic ester and the carboxylic ester is returned into the distillation column below the side takeoff point, and (c) the bottom product removed is the carboxylic ester.
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公开(公告)号：DK334188A
公开(公告)日：1988-06-17
申请号：DK334188
申请日：1988-06-17
Applicant: BASF AG
Inventor： HORN DIETER , SCHMIDT HANS WILHELM , DITTER WALTER , HARTMANN HORST , LUEDDECKE ERIK , SCHMIEDER KLAUS
Abstract: Finely divided, pulverulent carotinoid or retinoid compositions, in which the carotinoid or retinoid essentially has a particle size of less than 0.5 micron, are prepared by a process wherein a carotinoid or retinoid is dissolved in a volatile, water-miscible, organic solvent at from 50 DEG C. to 200 DEG C., if necessary under superatmospheric pressure, within the space of less than 10 seconds. The carotinoid is immediately precipitated, in a colloidally disperse form, from the molecularly disperse solution by rapidly mixing the latter with an aqueous solution of a swellable colloid at from 0 DEG C. to 50 DEG C., and the resulting dispersion is freed from the solvent and the dispersing medium in a conventional manner.
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