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公开(公告)号:JP2004231659A
公开(公告)日:2004-08-19
申请号:JP2004024570
申请日:2004-01-30
Applicant: Basf Ag , ビーエーエスエフ アクチェンゲゼルシャフト
Inventor: CIPRIAN JUERGEN , FRAUENKRON MATTHIAS , MAURER STEPHAN , MELDER JOHANN-PETER DR
IPC: C07D487/08 , B01F1/00 , B01J20/26 , C07C209/84 , C07C211/09 , C07D497/04
CPC classification number: C07D487/08
Abstract: PROBLEM TO BE SOLVED: To provide a method for preparing triethylenediamine (TEDA) solution in an alcohol and/or an ether.
SOLUTION: The method for preparing TEDA solutions containing solvents selected from a group consisting monohydric alcohols and ethers of monohydric alcohols, comprises (a) a process passing gaseous TEDA into the solvents and (b) subsequently treating the solutions with one or more suitable adsorbents.
COPYRIGHT: (C)2004,JPO&NCIPI-
公开(公告)号:JP2000256314A
公开(公告)日:2000-09-19
申请号:JP2000065327
申请日:2000-03-09
Applicant: BASF AG
Inventor: HENKES ERHARD , IFFLAND GABRIELE , CIPRIAN JUERGEN
IPC: C07D223/10 , C07B63/00 , C07D201/16 , C07D207/26 , C07D207/267 , C07D207/27 , C07D211/14 , C07D225/02
Abstract: PROBLEM TO BE SOLVED: To economically, selectively and efficiently reduce the concentration of amines existing in an N-substituted lactam as an impurity by treating a polluted N-substituted lactam with an acidic macroporous cation exchanger. SOLUTION: (A) An N-substituted lactam polluted with amines is treated with (B) an acidic macroporous cation exchanger. A strong acidic macroporous cation exchanger is used in the treatment and the component B has a styrene- divinylbenzene copolymer base material having 10-150 nm pore diameter. The usable capability of the component B is at least 0.5 mol of amines per 1 L of the cation exchanger and the component A is useful for purification of a compound expressed by the formula [R is a (substituted) saturated aliphatic group or the like; (n) is 1-4], especially for N-methyl-2-pyrrolidone, and the treatment is preferably performed at 5-130 deg.C.
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公开(公告)号:WO2004052819A8
公开(公告)日:2005-07-07
申请号:PCT/EP0313621
申请日:2003-12-03
Applicant: BASF AG , BENNETT ANDREA KAREN , CIPRIAN JUERGEN , ELLIOT MARK , EXNER KAI MICHAEL
Inventor: BENNETT ANDREA KAREN , CIPRIAN JUERGEN , ELLIOT MARK , EXNER KAI MICHAEL
Abstract: The invention relates to reduction of a MEHQ (methoxyhydroquinone) content in acrylic acid or in the salts thereof by absorption on activated charcoal. In particular, MEHQ is eliminated from a totally or partially neutralised acrylic acid.
Abstract translation: 本发明涉及的MEHQ(甲氧基氢醌)丙烯酸或其盐通过连续吸附在活性炭上的内容的减少。 特别是,MEHQ从部分或完全中和的丙烯酸除去。
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4.
公开(公告)号:WO2004052819A2
公开(公告)日:2004-06-24
申请号:PCT/EP0313621
申请日:2003-12-03
Applicant: BASF AG , BENNETT ANDREA KAREN , CIPRIAN JUERGEN , ELLIOT MARK , EXNER KAI MICHAEL
Inventor: BENNETT ANDREA KAREN , CIPRIAN JUERGEN , ELLIOT MARK , EXNER KAI MICHAEL
Abstract: The invention relates to reduction of a MEHQ (methoxyhydroquinone) content in acrylic acid or in the salts thereof by absorption on activated charcoal. In particular, MEHQ is eliminated from a totally or partially neutralised acrylic acid.
Abstract translation: 本发明涉及的MEHQ(甲氧基氢醌)丙烯酸或其盐通过连续吸附在活性炭上的内容的减少。 特别是,MEHQ从部分或完全中和的丙烯酸除去。
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公开(公告)号:DE102005061956A1
公开(公告)日:2007-07-05
申请号:DE102005061956
申请日:2005-12-23
Applicant: BASF AG
Inventor: LANG ORTMUND , CIPRIAN JUERGEN , RAULS MATTHIAS , FRAUENKRON MATTHIAS , CAUWENBERGE GUNTHER VAN , NOUWEN JAN
IPC: C07C209/86 , C07C209/84 , C07C211/10
Abstract: Method for processing triethylene diamine comprises evaporating the triethylene diamine, introducing the gaseous triethylene diamine into a solvent, subsequently crystallizing and separating the mixture, extracting the obtained mother liquor with an extracting agent and obtaining a raffinate phase by an adsorption process.
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公开(公告)号:DE10313207A1
公开(公告)日:2004-10-07
申请号:DE10313207
申请日:2003-03-25
Applicant: BASF AG
Inventor: BESTE YORK ALEXANDER , CIPRIAN JUERGEN , MAURER STEPHAN
Abstract: A mixture containing ionic liquid and a substance is purified by separating the present substance by adsorptive separation processes.
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公开(公告)号:DE59906071D1
公开(公告)日:2003-07-31
申请号:DE59906071
申请日:1999-04-15
Applicant: BASF AG
Inventor: AUER HEINZ , CIPRIAN JUERGEN , FRANZ LOTHAR , FRANZISCHKA WOLFGANG , IFFLAND GABRIELE , WECK ALEXANDER , WEINLE WERNER
IPC: C08G65/20 , C08G65/30 , C08G65/32 , C08G65/331
Abstract: The present invention relates to a process for preparing hydroxyl-containing polymers, in particular for preparing polytetrahydrofuran with terminal hydroxyl groups, from the corresponding acyloxy-containing polymers by transesterification with alcohols in the presence of an alkali metal- or alkaline earth metal-containing catalyst, which entails the appropriate acyloxy-containing polymer being introduced together with the alcohol and the catalyst into a first prereactor (I) and converted therein at least partly to the hydroxyl-containing polymer, and the reaction solution being fed into the upper zone (IIa) of a distillation column (II) into whose lower zone (IIb) alcohol in vapor phase is additionally fed. This involves a phase exchange at the coherent and the disperse phase at the transition from the prereactor to the distillation column. Preferably, in addition to the first prereactor, a further 3 prereactors are used which serve as holdup reactors.
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公开(公告)号:ZA200505413B
公开(公告)日:2007-02-28
申请号:ZA200505413
申请日:2005-07-05
Applicant: BASF AG
Inventor: MARK ELLIOT , MICHAEL EXNER KAI , KAREN BENNETT ANDREA , CIPRIAN JUERGEN
IPC: A61L20090101 , A61L15/60 , C07C20090101 , C07C51/47 , C08F20090101 , C08F20/06
Abstract: A process for the reduction of the concentration of methoxyhydroquinone (MEHQ) in acrylic acid that is neutralized to 75-100% comprises continuous adsorption on activated carbon. An Independent claim is included for a process for the production of superabsorbers (I) by reduction of the MEHQ content by the novel process followed by polymerization, optionally with non-neutralized acrylic acid with optionally surface cross-linking.
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公开(公告)号:DE102005025900A1
公开(公告)日:2006-12-07
申请号:DE102005025900
申请日:2005-06-06
Applicant: BASF AG
Inventor: SCHNEIDER JOERG , SCHERR GUENTER , ERHARDT RAINER , EICHFELDER ANDREAS , REIF MARTIN , HIRSCH STEFAN , SIEDER GEORG , HOLTMANN THOMAS , CIPRIAN JUERGEN , ASCHERL HERMANN
IPC: C07D251/12 , B01D15/04
Abstract: The invention relates to a process for removing salts from an alkanolic reaction mixture which is obtained in the preparation of alkoxycarbonylaminotriazines and comprises at least one alkoxycarbonylaminotriazine, at least one cyclic and/or acyclic carbonic ester, at least one C 1 -C 13 -alkanol which optionally comprises one or two oxygen atoms as ether bonds and is optionally substituted by C 1 -C 4 -alkyl and/or hydroxyl, and also at least one alkali metal alkoxide or alkaline earth metal alkoxide, with or without melamine and with or without catalyst, in which salts are removed from the reaction mixture by ion exchange over a cation exchanger and/or anion exchanger.
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公开(公告)号:DE102005025898A1
公开(公告)日:2006-12-07
申请号:DE102005025898
申请日:2005-06-06
Applicant: BASF AG
Inventor: SCHNEIDER JOERG , SCHERR GUENTER , ERHARDT RAINER , EICHFELDER ANDREAS , REIF MARTIN , HIRSCH STEFAN , SIEDER GEORG , HOLTMANN THOMAS , CIPRIAN JUERGEN , ASCHERL HERMANN
IPC: C07D251/12 , B01D3/14
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