公开(公告)号：DE19910504A1

公开(公告)日：2000-09-14

申请号：DE19910504

申请日：1999-03-10

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 ,  C07D207/263 ,  C07D211/76 ,  C07D227/087

公开(公告)号：BRPI0611354A2

公开(公告)日：2011-02-22

申请号：BRPI0611354

申请日：2006-05-31

Applicant: BASF AG

Inventor： SCHNEIDER JIRG ,  SCHERR GUENTER ,  EHRHARDT RAINER ,  EICHFELDER ANDREAS ,  REIF MARTIN ,  HIRSCH STEFAN ,  SIEDER GEORG ,  HOLTMANN THOMAS ,  CIPRIAN JUERGEN ,  ASCHERL HERMANN

IPC: C07D251/70

Abstract: The invention relates to a process for preparing free-flowing, pulverulent alkoxycarbonylaminotriazine 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 C1-C13-alkanol which optionally comprises one or two oxygen atoms in the form of ether bonds and is optionally substituted by C1-C4-alkyl and/or hydroxyl, and also at least one alkali metal or alkaline earth metal alkoxide, with or without melamine and with or without catalyst, by atomizing and drying the reaction mixture in a spray drier.

公开(公告)号：BRPI0611056A2

公开(公告)日：2011-02-22

申请号：BRPI0611056

申请日：2006-06-02

Applicant: BASF AG

Inventor： SCHNEIDER J RG ,  SCHERR GUENTER ,  EHRHARDT RAINER ,  EICHFELDER ANDREAS ,  REIF MARTIN ,  HIRSCH STEFAN ,  SIEDER GEORG ,  HOLTMANN THOMAS ,  CIPRIAN JUERGEN ,  ASCHERL HERMANN

IPC: C07D251/70

Abstract: Processes comprising: providing an alkanolic reaction mixture, the alkanolic reaction mixture comprising: at least one alkoxycarbonylaminotriazine; at least one carbonic ester; at least one C1-C13-alkanol, which alkanol may further comprise up to two ether-bound oxygen atoms and may further comprise a substituent selected from the group consisting of C1-C4-alkyls and hydroxyls; and at least one alkali metal alkoxide or alkaline earth metal alkoxide; and subjecting the alkanolic reaction mixture to extraction with a polar extractant such that at least a portion of polar/ionic components present in the reaction mixture are removed, wherein the polar extractant is less than entirely miscible with an organic phase of the reaction mixture, to form an alkanolic phase comprising the at least one alkoxycarbonylaminotriazine and a polar phase comprising the polar extractant and the portion of polar/ionic components; and wherein the extraction is carried out with one or more selected from the group consisting of mixer/settler units, columns, centrifugal field separation extractors, and combinations thereof.

公开(公告)号：DE102005025899A1

公开(公告)日：2006-12-07

申请号：DE102005025899

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: C07D251/40

Abstract: Processes comprising: providing an alkanolic reaction mixture, the alkanolic reaction mixture comprising: at least one alkoxycarbonylaminotriazine; at least one carbonic ester; at least one C1-C13-alkanol, which alkanol may further comprise up to two ether-bound oxygen atoms and may further comprise a substituent selected from the group consisting of C1-C4-alkyls and hydroxyls; and at least one alkali metal alkoxide or alkaline earth metal alkoxide; and subjecting the alkanolic reaction mixture to extraction with a polar extractant such that at least a portion of polar/ionic components present in the reaction mixture are removed, wherein the polar extractant is less than entirely miscible with an organic phase of the reaction mixture, to form an alkanolic phase comprising the at least one alkoxycarbonylaminotriazine and a polar phase comprising the polar extractant and the portion of polar/ionic components; and wherein the extraction is carried out with one or more selected from the group consisting of mixer/settler units, columns, centrifugal field separation extractors, and combinations thereof.

公开(公告)号：DE102005025855A1

公开(公告)日：2006-12-14

申请号：DE102005025855

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: C07D251/18 ,  A61K31/53

Abstract: The invention relates to a process for preparing free-flowing, pulverulent alkoxycarbonylaminotriazine 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 C1-C13-alkanol which optionally comprises one or two oxygen atoms in the form of ether bonds and is optionally substituted by C1-C4-alkyl and/or hydroxyl, and also at least one alkali metal or alkaline earth metal alkoxide, with or without melamine and with or without catalyst, by atomizing and drying the reaction mixture in a spray drier.

公开(公告)号：DE102005025901A1

公开(公告)日：2006-12-07

申请号：DE102005025901

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: C07D251/40

公开(公告)号：DE10257397A1

公开(公告)日：2004-06-24

申请号：DE10257397

申请日：2002-12-06

Applicant: BASF AG

Inventor： BENNETT ANDREA KAREN ,  CIPRIAN JUERGEN ,  ELLIOT MARK ,  EXNER KAI MICHAEL

IPC: A61L15/60 ,  C07C51/47 ,  C08F20/06 ,  C07C57/07

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.

公开(公告)号：DE19954055A1

公开(公告)日：2001-05-17

申请号：DE19954055

申请日：1999-11-10

Applicant: BASF AG

Inventor： BERRSCHE HELMUT ,  GABEL SABINE ,  IFFLAND GABRIELE ,  CIPRIAN JUERGEN ,  WENZEL ANNE ,  TELES JOAQUIM HENRIQUE ,  REHFINGER ALWIN

IPC: B01J47/00 ,  B01J47/02 ,  B01J47/026 ,  C01B15/013 ,  C07D301/12

Abstract: A device for removal of at least one salt from a hydrogen peroxide solution, by ion exchange, is characterised in that the device comprises at least one ion exchange bed (I) with a flow area F and height H, whereby the height H of the ion exchange bed is less than or equal to 2, 5.F .

公开(公告)号：DE19817113A1

公开(公告)日：1999-10-21

申请号：DE19817113

申请日：1998-04-17

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: In the transesterification of acyloxy-containing polymers with alcohols to give the corresponding hydroxy-containing polymers, passing the reaction mixture from a pre-reactor into a column where the product moves in a counterflow to alcohol vapor to cause phase separation. Process for preparing hydroxy group-containing polymers, especially polytetrahydrofuran with terminal OH groups, from the corresponding acyloxy-containing polymers (A) by transesterification with alcohols (B) in the presence of an alkali(ne earth)-containing catalyst (C), comprises charging the (A), (B) and (C) to a pre-reactor (I) in which at least partial conversion to the OH-containing polymer takes place, then feeding the charge to the upper part (IIa) of a distillation column (II), to the lower part (IIb) of which additional alcohol (B) is fed in the vapor phase.

公开(公告)号：BRPI0611241A2

公开(公告)日：2010-12-07

申请号：BRPI0611241

申请日：2006-06-01

Applicant: BASF AG

Inventor： SCHERR GUENTER ,  ERHARDT RAINER ,  EICHFELDER ANDREAS ,  REIF MARTIN ,  HIRSCH STEFAN ,  SIEDER GEORG ,  HOLTMANN THOMAS ,  CIPRIAN JUERGEN ,  ASCHERL HERMANN ,  SCHNEIDER JOERG

IPC: C07D251/70

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.