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    2.
    发明专利
    未知

    公开(公告)号：DE19641483A1

    公开(公告)日：1998-04-16

    申请号：DE19641483

    申请日：1996-10-09

    Applicant: BASF AG

    Inventor： EIERMANN MATTHIAS DR ,  PAPKALLA THOMAS DR

    IPC: C07C309/04 ,  C07C303/14

    Abstract: Process to manufacture methane sulfonic acid by irradiation of a mixture containing acetic acid, sulphur dioxide and oxygen with light. Accumulated irradiation density of light in 240-320 nm range on light entrance surface in reaction mixture is on average 0.05 to 50 nMol quantum/cm h.

    3.
    发明专利
    未知

    公开(公告)号：ES2105049T3

    公开(公告)日：1997-10-16

    申请号：ES93118478

    申请日：1993-11-16

    Applicant: BASF AG

    Inventor： BAUR KARL GERHARD DR ,  PAPKALLA THOMAS DR ,  KANNE ULRICH DR ,  STOPS PETER

    IPC: C02F1/58 ,  C02F1/72 ,  C02F11/08 ,  C02F101/16 ,  C02F101/30

    Abstract: Oxidation of ammonium ions and organic carbon in ammonium-ion-containing and organic carbon-containing waste waters (effluents) by nitric acid at 100 to 350@C, in that the molar ratio of organic carbon to ammonium nitrogen is established at a range of 0.3:1 to 4:1 by addition of organic carbon or ammonium nitrogen. In a preferred embodiment which is reproduced by way of example in the figure, the waste water, which can be enriched, depending on the TOC content, with organic carbon, is transported via the feedline (1), possibly from an intermediate tank (2), by a pump (3) through a heat exchanger (4) in which it is preheated to, for example, 270@C. The preheated waste water is then heated by direct feed of 100 bar high-pressure steam via feedline (5) or by indirect heating to 290@C. After establishing the nitric acid concentration necessary for the ammonium degradation, e.g. via a feedline (6) in the waste water at 290@C, this is conveyed through a reactor (7) without back-mixing (e.g. a tubular reactor having internals and which is clad with titanium). After a residence time of, for example, 5 to 10 min, the reaction solution is cooled in counter-current with the feed and is depressurised in a separator (8). The waste water is removed via a line (9), via an intermediate tank (10) and a heat exchanger (11).

    4.
    发明专利
    未知

    公开(公告)号：DE19503327A1

    公开(公告)日：1996-08-08

    申请号：DE19503327

    申请日：1995-02-02

    Applicant: BASF AG

    Inventor： EBEL KLAUS DR ,  EIERMANN MATTHIAS DR ,  PAPKALLA THOMAS DR

    IPC: C07C67/333 ,  C07C69/738

    Abstract: Prepn. of 5-oxo-6-heptenoic acid alkyl esters of formula (I) comprises: (a) reaction of 5-acetyl-2-norbornene (VI) with a dialkylcarbonate of formula (VII), in the presence of a base, to give a 3-(2-norbornen-5-yl)-3-oxopropionic acid alkyl ester of formula (II); (b) reaction of (II) with an unsatd. cpd. of formula (III) in the presence of a base, and hydrolysis to give a 5-(2-norbornen-5-yl)-5- oxopentanoic acid of formula (IV); (c) esterification to a 5-(2-norbornen-5-yl)-5- oxopentanoic acid ester of formula (V); and (d) thermal cleavage of this cpd. at 300-700 degrees C to give (I). Q = H (in (IV)) or R (in (V)); X, Y = H or Me; R = 1-8C alkyl; R = 1-4C alkyl; Z = CN or CO2R ; R = 1-4C alkyl;

    5.
    发明专利
    未知

    公开(公告)号：DE4239487A1

    公开(公告)日：1994-05-26

    申请号：DE4239487

    申请日：1992-11-25

    Applicant: BASF AG

    Inventor： BAUR KARL GERHARD DR ,  PAPKALLA THOMAS DR ,  KANNE ULRICH DR ,  STOPS PETER

    IPC: C02F1/58 ,  C02F1/72 ,  C02F11/08 ,  C02F101/16 ,  C02F101/30 ,  C02F1/02

    Abstract: Oxidation of ammonium ions and organic carbon in ammonium-ion-containing and organic carbon-containing waste waters (effluents) by nitric acid at 100 to 350@C, in that the molar ratio of organic carbon to ammonium nitrogen is established at a range of 0.3:1 to 4:1 by addition of organic carbon or ammonium nitrogen. In a preferred embodiment which is reproduced by way of example in the figure, the waste water, which can be enriched, depending on the TOC content, with organic carbon, is transported via the feedline (1), possibly from an intermediate tank (2), by a pump (3) through a heat exchanger (4) in which it is preheated to, for example, 270@C. The preheated waste water is then heated by direct feed of 100 bar high-pressure steam via feedline (5) or by indirect heating to 290@C. After establishing the nitric acid concentration necessary for the ammonium degradation, e.g. via a feedline (6) in the waste water at 290@C, this is conveyed through a reactor (7) without back-mixing (e.g. a tubular reactor having internals and which is clad with titanium). After a residence time of, for example, 5 to 10 min, the reaction solution is cooled in counter-current with the feed and is depressurised in a separator (8). The waste water is removed via a line (9), via an intermediate tank (10) and a heat exchanger (11).

    6.
    发明专利
    未知

    公开(公告)号：DE59910556D1

    公开(公告)日：2004-10-28

    申请号：DE59910556

    申请日：1999-04-06

    Applicant: BASF AG

    Inventor： PAPKALLA THOMAS DR ,  BAUR KARL GERHARD DR ,  LANGENSIEPEN HANS-WERNER DR ,  MACKENROTH WOLFGANG PROF DR

    IPC: A62D3/40 ,  A62D101/26 ,  A62D101/28 ,  C02F1/02 ,  C02F1/58

    Abstract: PROBLEM TO BE SOLVED: To decompose different aromatic nitro compounds in waste water as many as possible in a single process when decomposing nitro compounds in the waste water and a mixture of more than two these compounds, by using at least one aromatic nitro compound not having a hydroxyl group in its aromatic ring. SOLUTION: Waste water is thermally decomposed in a pressure vessel under such a condition that temperature is 150-350 deg.C, favorably 250-320 deg.C, pressure is 10-300 bars, favorably 40-250 bars, and the pH of the waste water is 7-14, favorably 10-13. The temperature of the waste water is adjusted so that nitroaromatic compounds with low solubility do not form an organic phase. The amount of the nitro compound with low solubility in water is adjusted according to the temperature of the waste water preferably of 40-80 deg.C. Thereby, the aromatic nitro compounds having no hydroxyl group and the nitro hydroxy aromatic compounds in the waste water can be decomposed at the same time in a single process.

    9.
    发明专利
    未知

    公开(公告)号：DE59307258D1

    公开(公告)日：1997-10-09

    申请号：DE59307258

    申请日：1993-11-16

    Applicant: BASF AG

    Inventor： BAUR KARL GERHARD DR ,  PAPKALLA THOMAS DR ,  KANNE ULRICH DR ,  STOPS PETER

    IPC: C02F1/58 ,  C02F1/72 ,  C02F11/08 ,  C02F101/16 ,  C02F101/30

    Abstract: Oxidation of ammonium ions and organic carbon in ammonium-ion-containing and organic carbon-containing waste waters (effluents) by nitric acid at 100 to 350@C, in that the molar ratio of organic carbon to ammonium nitrogen is established at a range of 0.3:1 to 4:1 by addition of organic carbon or ammonium nitrogen. In a preferred embodiment which is reproduced by way of example in the figure, the waste water, which can be enriched, depending on the TOC content, with organic carbon, is transported via the feedline (1), possibly from an intermediate tank (2), by a pump (3) through a heat exchanger (4) in which it is preheated to, for example, 270@C. The preheated waste water is then heated by direct feed of 100 bar high-pressure steam via feedline (5) or by indirect heating to 290@C. After establishing the nitric acid concentration necessary for the ammonium degradation, e.g. via a feedline (6) in the waste water at 290@C, this is conveyed through a reactor (7) without back-mixing (e.g. a tubular reactor having internals and which is clad with titanium). After a residence time of, for example, 5 to 10 min, the reaction solution is cooled in counter-current with the feed and is depressurised in a separator (8). The waste water is removed via a line (9), via an intermediate tank (10) and a heat exchanger (11).

    10.
    发明专利
    未知

    公开(公告)号：AT157636T

    公开(公告)日：1997-09-15

    申请号：AT93118478

    申请日：1993-11-16

    Applicant: BASF AG

    Inventor： BAUR KARL GERHARD DR ,  PAPKALLA THOMAS DR ,  KANNE ULRICH DR ,  STOPS PETER

    IPC: C02F1/58 ,  C02F1/72 ,  C02F11/08 ,  C02F101/16 ,  C02F101/30

    Abstract: Oxidation of ammonium ions and organic carbon in ammonium-ion-containing and organic carbon-containing waste waters (effluents) by nitric acid at 100 to 350@C, in that the molar ratio of organic carbon to ammonium nitrogen is established at a range of 0.3:1 to 4:1 by addition of organic carbon or ammonium nitrogen. In a preferred embodiment which is reproduced by way of example in the figure, the waste water, which can be enriched, depending on the TOC content, with organic carbon, is transported via the feedline (1), possibly from an intermediate tank (2), by a pump (3) through a heat exchanger (4) in which it is preheated to, for example, 270@C. The preheated waste water is then heated by direct feed of 100 bar high-pressure steam via feedline (5) or by indirect heating to 290@C. After establishing the nitric acid concentration necessary for the ammonium degradation, e.g. via a feedline (6) in the waste water at 290@C, this is conveyed through a reactor (7) without back-mixing (e.g. a tubular reactor having internals and which is clad with titanium). After a residence time of, for example, 5 to 10 min, the reaction solution is cooled in counter-current with the feed and is depressurised in a separator (8). The waste water is removed via a line (9), via an intermediate tank (10) and a heat exchanger (11).

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