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公开(公告)号:SI1401846T1
公开(公告)日:2005-06-30
申请号:SI200230059
申请日:2002-06-21
Applicant: BASF AG
Inventor: VANDENMERSCH HUGUES , VOSS HARTWIG , ORSTEN STEFAN , WULFF CHRISTIAN
Abstract: The present invention relates to a process for the recovery of N-phosphonomethylglycine from an aqueous mixture which contains N-phosphonomethylglycine, ammonium halides, and alkali metal or alkaline earth metal halides and optionally organic impurities in dissolved form, where (a) the pH of the mixture is adjusted to a value in the range from 2 to 8, (b) a separation of the mixture on a selective nanofiltration membrane is performed, a retentate which is richer in N-phosphonomethylglycine and poorer in halides and a permeate which is richer in halides and poorer in N-phosphonomethylglycine being obtained, and (c) the N-phosphonomethylglycine is recovered from the retentate. The process according to the invention makes possible the recovery of the N-phosphonomethylglycine with simultaneous separation of the halide salts.
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公开(公告)号:PT1401846E
公开(公告)日:2005-04-29
申请号:PT02754734
申请日:2002-06-21
Applicant: BASF AG
Inventor: VOSS HARTWIG , ORSTEN STEFAN , WULFF CHRISTIAN , HUGUES VANDENMERSCH
Abstract: The present invention relates to a process for the recovery of N-phosphonomethylglycine from an aqueous mixture which contains N-phosphonomethylglycine, ammonium halides, and alkali metal or alkaline earth metal halides and optionally organic impurities in dissolved form, where (a) the pH of the mixture is adjusted to a value in the range from 2 to 8, (b) a separation of the mixture on a selective nanofiltration membrane is performed, a retentate which is richer in N-phosphonomethylglycine and poorer in halides and a permeate which is richer in halides and poorer in N-phosphonomethylglycine being obtained, and (c) the N-phosphonomethylglycine is recovered from the retentate. The process according to the invention makes possible the recovery of the N-phosphonomethylglycine with simultaneous separation of the halide salts.
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公开(公告)号:BR0312382A
公开(公告)日:2005-04-12
申请号:BR0312382
申请日:2003-07-17
Applicant: BASF AG
Inventor: LLER ULRICH M , VOSS HARTWIG , SCHUBERT ERICH , HILL FRIEDRICH , PETERSEN HERMANN
IPC: B01J29/04 , B01J29/06 , B01J29/89 , C01B21/14 , C01B39/02 , C07B41/02 , C07C239/08 , C07C249/04 , C07C249/08 , C07D301/12
Abstract: In a process for concentrating an at least partially crystalline solid containing at least one zeolite in a mixture comprising at least one auxiliary, for example a template compound, and said solid, the mixture is ultrafiltrated in a step (II) to divide the mixture into a retentate and a permeate, the solids content in the retentate being higher than that in the mixture and the solids content in the permeate being lower than that in the mixture. This procedure allows auxiliaries, in particular template compounds, present in the permeate to be recycled into a crystallizing step (I) upstream of step (II).
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公开(公告)号:DE50201919D1
公开(公告)日:2005-02-03
申请号:DE50201919
申请日:2002-07-16
Applicant: BASF AG
Inventor: BITTERLICH STEFAN , VOSS HARTWIG , WILFINGER HANS JOERG
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公开(公告)号:AT279463T
公开(公告)日:2004-10-15
申请号:AT01991752
申请日:2001-11-22
Applicant: BASF AG
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公开(公告)号:AU2003250980A1
公开(公告)日:2004-02-02
申请号:AU2003250980
申请日:2003-07-17
Applicant: BASF AG
Inventor: SCHUBERT ERICH , HILL FRIEDRICH , PETERSEN HERMANN , MULLER ULRICH , VOSS HARTWIG
IPC: B01J29/04 , B01J29/06 , B01J29/89 , C01B21/14 , C01B39/02 , C07B41/02 , C07C239/08 , C07C249/04 , C07C249/08 , C07D301/12
Abstract: In a process for concentrating an at least partially crystalline solid containing at least one zeolite in a mixture comprising at least one auxiliary, for example a template compound, and said solid, the mixture is ultrafiltrated in a step (II) to divide the mixture into a retentate and a permeate, the solids content in the retentate being higher than that in the mixture and the solids content in the permeate being lower than that in the mixture. This procedure allows auxiliaries, in particular template compounds, present in the permeate to be recycled into a crystallizing step (I) upstream of step (II).
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公开(公告)号:NO20033705L
公开(公告)日:2003-10-16
申请号:NO20033705
申请日:2003-08-20
Applicant: BASF AG
Inventor: VOSS HARTWIG , BECK CHRISTINE , KLEIN DANIELA , LOHSCHEIDT MARKUS , HARZ HANS-PETER , LEEMANN MARTIN , BITTERLICH STEFAN
Abstract: The invention relates to an improved method for the production of D-pantothenic acid and/or salts thereof and use thereof as adjunct for animal feedstuffs.
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公开(公告)号:NO20033705D0
公开(公告)日:2003-08-20
申请号:NO20033705
申请日:2003-08-20
Applicant: BASF AG
Inventor: VOSS HARTWIG , BECK CHRISTINE , KLEIN DANIELA , LOHSCHEIDT MARKUS , HARZ HANS-PETER , LEEMANN MARTIN , BITTERLICH STEFAN
Abstract: The invention relates to an improved method for the production of D-pantothenic acid and/or salts thereof and use thereof as adjunct for animal feedstuffs.
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公开(公告)号:CA2472228A1
公开(公告)日:2003-07-24
申请号:CA2472228
申请日:2003-01-15
Applicant: BASF AG
Inventor: VOSS HARTWIG , BITTERLICH STEFAN , WULFF CHRISTIAN
IPC: B01D61/24 , C02F1/44 , H01M8/04029 , H01M8/04
Abstract: The invention relates to a method and device for deionizing a cooling medium of a fuel cell that circulates inside a cooling circuit. The invention is characterized in that a liquid deionizing agent is permitted to act, at least intermittently, upon the cooling medium whereby enabling the deionizing agent to absorb ions from the cooling medium. To this end, the inventive fuel cell aggregate (10), which comprises at least one fuel cell (11) and at least one cooling circuit (20) for the fuel cell, has, inside the cooling circuit (20), at least one deionization device (23), inside of which a liquid deionizing agent can act upon the cooling medium. The deionization device can comprise static mixers (28, 34) downstream from which membrane separators (29, 35) are connected.
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公开(公告)号:AU2673001A
公开(公告)日:2001-06-18
申请号:AU2673001
申请日:2000-12-11
Applicant: BASF AG
Inventor: BITTERLICH STEFAN , VOSS HARTWIG , HIBST HARTMUT , TENTEN ANDREAS , VOIGT INGOLF , PIPPARDT UTE
IPC: C07D307/60 , B01D69/04 , B01D69/06 , B01D69/12 , B01D71/02 , B01J20/28 , B01J23/00 , B01J23/34 , B01J27/198 , B01J35/02 , B01J35/06 , C07B41/00 , C07B61/00 , C07C5/48 , C07C45/35 , C07C45/38 , C07C51/215 , C07C51/25 , C07C51/265 , C07C253/24 , C07C253/26 , C07C253/28 , C07D307/89 , B01J35/00
Abstract: Reactor membranes advantageously useful in oxidation reactions of hydrocarbons involving oxygen comprise a selective oxidation catalyst on a mixed conducting, oxide ion selective ceramic membrane of the composition (Sr1-xCax)1-yAyMn1-zBzO3-delta, where A is Ba, Pb, Na, K, Y, an element of the lanthanide group or a combination thereof, B is Mg, Al, Ga, In, Sn, an element of the 3d or 4d period or a combination thereof, x is from 0.2 to 0.8, y is from 0 to 0.4, z is from 0 to 0.6, and delta is a number, dependent on x, y and z, that renders the composition charge neutral.
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