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公开(公告)号：DE59100367D1
公开(公告)日：1993-10-21
申请号：DE59100367
申请日：1991-01-26
Applicant: BASF AG
Inventor： SANDER BRUNO DR , MARQUARDT SIEGFRIED , KEMPE UWE DR , VODRAZKA WOLFGANG DR , LUETH GERO DR
Abstract: Process for the utilisation of soot, arising in the production of synthesis gas in the form of soot-containing waste water, characterised in that, in a sewage sludge treatment plant, the soot-containing waste water a) is mixed with a clarified sludge, to which are added organic flocculating agents as dewatering aids and to which, if required, are added still further amounts of finely particulate coals and/or ashes, b) this pretreated sludge mixture is subjected to filtration c) the filter cake obtained is incinerated and d) the ash is deposited in a supervised landfill.
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公开(公告)号：DE4003242A1
公开(公告)日：1991-08-08
申请号：DE4003242
申请日：1990-02-03
Applicant: BASF AG
Inventor： SANDER BRUNO DR , MARQUARDT SIEGFRIED , KEMPE UWE DR , VODRAZKA WOLFGANG DR , LUETH GERO DR
Abstract: Process for the utilisation of soot, arising in the production of synthesis gas in the form of soot-containing waste water, characterised in that, in a sewage sludge treatment plant, the soot-containing waste water a) is mixed with a clarified sludge, to which are added organic flocculating agents as dewatering aids and to which, if required, are added still further amounts of finely particulate coals and/or ashes, b) this pretreated sludge mixture is subjected to filtration c) the filter cake obtained is incinerated and d) the ash is deposited in a supervised landfill.
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公开(公告)号：DE3624146A1
公开(公告)日：1988-01-28
申请号：DE3624146
申请日：1986-07-17
Applicant: BASF AG
Inventor： KOEHLER HERMANN DR , KEMPE UWE DR , DOCKNER TONI DR , SAUKEL HEINZ DR
Abstract: The application relates to a process for the preparation of 4,4'-dimethoxybenzoin by benzoin condensation of 4-methoxybenzaldehyde in the presence of dimethylformamide and/or N-methylpyrrolidone as solvent at temperatures from 60 to 120 DEG C in the presence of 0.1 to 0.25 equivalent of an alkali metal cyanide.
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公开(公告)号：DE3461533D1
公开(公告)日：1987-01-15
申请号：DE3461533
申请日：1984-01-10
Applicant: BASF AG
Inventor： DOCKNER TONI DR , KEMPE UWE DR , FRANK ANTON
IPC: C07D233/90
Abstract: Imidazole-4,5-dicarboxylic acid is prepared by a process in which imidazole is reacted with formaldehyde, and the reaction mixture is treated with nitric acid.
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公开(公告)号：DE3426195A1
公开(公告)日：1986-01-23
申请号：DE3426195
申请日：1984-07-17
Applicant: BASF AG
Inventor： KEMPE UWE DR , DISTELDORF WALTER DR , DOCKNER TONI DR , EISFELD WOLFGANG DR
IPC: C07D233/90
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Patent Agency Ranking
公开(公告)号：DE3161207D1
公开(公告)日：1983-11-24
申请号：DE3161207
申请日：1981-03-04
Applicant: BASF AG
Inventor： DOCKNER TONI DR , KEMPE UWE DR , KRUG HERBERT , MAGNUSSEN PETER DR , PRAETORIUS WERNER DR
IPC: B01J23/00 , C07D233/06 , C07D233/08 , C07D233/10
Abstract: 2-Imidazolines are prepared by reacting N,N'-diformyl-1,2-diamines in the gas phase at 200 DEG -350 DEG C., in the presence of certain amounts of an inert gas, over zinc oxide of a particular structure or over a mixture of this zinc oxide and aluminum oxide, as the catalyst. The 2-imidazolines obtainable by the process according to the invention are valuable starting materials for the preparation of dyes, crop protection agents and drugs.
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公开(公告)号：DE58909208D1
公开(公告)日：1995-06-08
申请号：DE58909208
申请日：1989-02-03
Applicant: BASF AG
Inventor： KEMPE UWE DR , DOCKNER TONI DR , KOEHLER HERMANN DR
IPC: C07D233/90 , C07D235/24
Abstract: Process for the preparation of 4,5-disubstituted imidazole- 2-carboxylic acids by reacting 4,5-disubstituted imidazoles with carbon dioxide at elevated pressure and at temperatures of 150 to 300 DEG C in the presence of a base, and novel 4,5-disubstituted imidazole-2-carboxylic acids.
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公开(公告)号：DE3780920D1
公开(公告)日：1992-09-10
申请号：DE3780920
申请日：1987-12-03
Applicant: BASF AG
Inventor： DOCKNER TONI DR , KEMPE UWE DR , KOEHLER HERMANN DR
IPC: C07D233/92 , C07D233/94
Abstract: Prodn. of 4(5)-nitroimidazole -5(4)-carboxylic acids (I) is effected by reacting an imidazole-4(5) -carboxylic acid (II) with a mixt. of H2SO4 and HNO3 at a temp. of at least 80 deg. C, provided that the reaction mixt. contains no more than 5 wt.% H2O at the start of the reaction. (I) and (II) are opt. 2-substd. by an aliphatic, cycloaliphatic, araliphatic or aromatic gp.. The HNO3:(II) molar ratio is 1-4:1. The HNO3:H2SO4 molar ratio is 0.1-1:1. The reaction is effected at 100-160 deg. C using a mixt. of 80-100% HNO3 and oleum, so that the reaction mixt. contains 0-1% H2O.
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公开(公告)号：DE3581453D1
公开(公告)日：1991-02-28
申请号：DE3581453
申请日：1985-07-16
Applicant: BASF AG
Inventor： KEMPE UWE DR , DOCKNER TONI DR , SCHLICK ROLF
IPC: C07D233/60 , C07D233/66 , C07D233/90
Abstract: Imidazole-4(5)-monocarboxylic acids and their salts or betaines are prepared by reacting an imidazole with carbon dioxide and an alkali metal carbonate, an alkali metal bicarbonate and/or an alkali metal hydroxide at from 140 DEG to 230 DEG C. and under from 2 to 350 bar and, if desired, then reacting the product with an acid. The imidazole-4(5)-monocarboxylic acids which can be prepared by the process of the invention are useful starting materials for the preparation of dyes, crop protection agents and drugs.
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公开(公告)号：DE3804545A1
公开(公告)日：1989-08-24
申请号：DE3804545
申请日：1988-02-13
Applicant: BASF AG
Inventor： KEMPE UWE DR , DOCKNER TONI DR , KOEHLER HERMANN DR
IPC: C07D233/90 , C07D235/24
Abstract: Process for the preparation of 4,5-disubstituted imidazole- 2-carboxylic acids by reacting 4,5-disubstituted imidazoles with carbon dioxide at elevated pressure and at temperatures of 150 to 300 DEG C in the presence of a base, and novel 4,5-disubstituted imidazole-2-carboxylic acids.
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