公开(公告)号：JPH11319800A

公开(公告)日：1999-11-24

申请号：JP9894699

申请日：1999-04-06

Applicant: BASF AG

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

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.

公开(公告)号：DE19724237A1

公开(公告)日：1998-12-10

申请号：DE19724237

申请日：1997-06-09

Applicant: BASF AG

Inventor： BECKER RAINER DR ,  ELLER KARSTEN DR ,  LANGENSIEPEN HANS-WERNER DR ,  HESSE MICHAEL DR

IPC: B01J21/16 ,  C07C209/78 ,  C07C211/54

Abstract: Production of aromatic polyamine mixtures contg. cpds. of formula: H2NACH2BNH2(I) (where, A and B = 1,4-phenylene residues which can have 1-4 substits. chosen from 1-20C alkyls and halogens) comprises converting a cpd. of formula: HANHCH2NHBH (IV) and/or a cpd. of formula HANHCH2BNH2 (V) (where, A and B = as above) at a temp. of 20-200 deg C in the presence of a heterogeneous inorganic catalyst chosen from: (a) oxides of 3-10 group element which can be acid-activated; (b) a clay doped with an oxide of a 2-13 group element or lanthanide which an be acid-activated; and (c) opt. acid-activated layered silicates acidity of below pK3 = 0.5 of more than 0.05 mmol/g catalyst.

公开(公告)号：DE19724213A1

公开(公告)日：1998-12-10

申请号：DE19724213

申请日：1997-06-09

Applicant: BASF AG

Inventor： BECKER RAINER DR ,  ELLER KARSTEN DR ,  LANGENSIEPEN HANS-WERNER DR ,  HESSE MICHAEL DR

IPC: B01J21/16 ,  C07C209/78 ,  C07C211/54

Abstract: Production of aromatic polyamine mixtures contg. cpds. of formula: H2NACH2BNH2(I) (where, A and B = 1,4-phenylene residues which can have 1-4 substits. chosen from 1-20C alkyls and halogens) comprises converting a cpd. of formula: HANHCH2NHBH (IV) and/or a cpd. of formula HANHCH2BNH2 (V) (where, A and B = as above) at a temp. of 20-200 deg C in the presence of a heterogeneous inorganic catalyst chosen from: (a) oxides of 3-10 group element which can be acid-activated; (b) a clay doped with an oxide of a 2-13 group element or lanthanide which an be acid-activated; and (c) opt. acid-activated layered silicates acidity of below pK3 = 0.5 of more than 0.05 mmol/g catalyst.

公开(公告)号：DE3068321D1

公开(公告)日：1984-07-26

申请号：DE3068321

申请日：1980-11-05

Applicant: BASF AG

Inventor： KOEHLER WALDEMAR DR ,  LANGENSIEPEN HANS-WERNER DR ,  MUELLER BERTHOLD DR

IPC: C08G12/08 ,  C07C85/24 ,  C07C85/08 ,  C07C85/26 ,  C07C87/50

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.

公开(公告)号：DE19707255A1

公开(公告)日：1998-08-27

申请号：DE19707255

申请日：1997-02-24

Applicant: BASF AG

Inventor： BECKER RAINER DR ,  ELLER KARSTEN DR ,  LANGENSIEPEN HANS-WERNER DR ,  HESSE MICHAEL DR

IPC: C07C209/54 ,  C07C209/68 ,  C07C209/78 ,  C07C211/50 ,  B01J21/00 ,  B01J23/28 ,  B01J23/30

Abstract: The preparation of an aromatic polyamine mixture (I) that contains compounds of formula (1) is claimed. (I) is prepared by reaction of a compound of formula (2) and/or a compound of formula (3) at 20-200 deg C in the presence of a catalyst (II) consisting of one or more oxide of Group 3-10 elements that can be activated by acid. H2N-A-CH2-B-NH2 (1) H-A-NH-CH2-NH-B-H (2) H-A-NH-CH2-B-NH2 (3) where A, B = 1,4-phenylene containing 1-4 substituents consisting of 1-20C alkyl and/or halogen.