公开(公告)号：DE19548318A1

公开(公告)日：1997-06-26

申请号：DE19548318

申请日：1995-12-22

Applicant: BASF AG

Inventor： GREIF NORBERT DR ,  POTTHOFF-KARL BIRGIT DR ,  OPPENLAENDER KNUT DR ,  EHLE MICHAEL DR ,  OETTER GUENTER DR ,  SLOTMAN WILHELMUS ,  BUECHNER KARL-HEINZ

IPC: C02F5/12 ,  C08F8/30 ,  C09K3/00 ,  C02F5/08 ,  C08F222/06 ,  C09K7/02

Abstract: Polycarboxylic acid hemiamides used as scale formation inhibitors are prepared by reacting (A) polymers containing anhydride groups and having a weight average molecular weight of 200 - 100000 with (B) sarcosine, aminosulphonic acids or aminophosphonic acids, or their alkali salts.

公开(公告)号：EP0834581A1

公开(公告)日：1998-04-08

申请号：EP96115628

申请日：1996-09-30

Applicant: BASF AG

Inventor： DELMAS FRANCISCO ,  NOGUEIRA CARLOS ,  EHLE MICHAEL DR

IPC: C22B3/32 ,  C22B3/38

CPC classification number: C22B3/0067 ,  C22B3/0024 ,  C22B3/0043 ,  Y02P10/234

Abstract: Hydrocarbon-soluble aminomethylenephosphonic acid derivatives comprising the structural element of the formula I where R and R are hydrogen or organic radicals, can be used for the solvent extraction of metal ions from aqueous solutions.

Abstract translation: 溶于烃的氨基亚甲基膦酸的衍生物，其包括式I 其中R <1>和R <2>为氢或有机基团，可用于金属离子从水溶液中萃取溶剂的结构元件。

公开(公告)号：DE19540090A1

公开(公告)日：1997-04-30

申请号：DE19540090

申请日：1995-10-27

Applicant: BASF AG

Inventor： GREIF NORBERT DR ,  POTTHOFF-KARL BIRGIT DR ,  OPPENLAENDER KNUT DR ,  EHLE MICHAEL DR ,  OETTER GUENTER DR ,  SLOTMAN WILHELMUS ,  BUECHNER KARL-HEINZ

IPC: C02F5/12 ,  C02F5/14 ,  C08F8/00 ,  C08F8/30 ,  C08F22/06

Abstract: Polycarboxylic acid semi-amides prepared by reaction of (a) polymers with Mw 200-100,000, containing anhydride groups, and (b) sarcosin, taurin, aminophosphonic acids or their alkali metal salts, are used as scale inhibitors.

公开(公告)号：DE19627909A1

公开(公告)日：1998-01-15

申请号：DE19627909

申请日：1996-07-11

Applicant: BASF AG

Inventor： STEUERLE ULRICH DR ,  REUTHER WOLFGANG DR ,  MEIXNER HUBERT DR ,  EHLE MICHAEL DR ,  GREINDL THOMAS DR ,  BETZ RAINER DR

IPC: B01D53/02 ,  B01J20/26 ,  C02F1/56 ,  C08G73/02 ,  C08G73/04 ,  C08L71/02 ,  B01D53/34 ,  C02F1/62 ,  C07B63/00

Abstract: Method of manufacturing finely divided, water-insoluble polymers of aziridines by polymerization of aziridines, preferably ethylene-imine, in the presence of two or more functional groups containing cross-linking agents in one or more ethers, as well as modified, water-insoluble polymers of aziridines that can be obtained by reacting finely divided, water-insoluble cross-linked polymers of aziridines in an aqueous medium with carbon disulphide or with formaldehyde and a nucleophilic agent from the group comprising alkali-metal cyanides, primary amines, secondary amines, alkali-metal sulphites, and alkali-metal phosphites, and the use of the modified and unmodified finely divided, water-insoluble polymers for immobilizing active ingredients, as absorbents for aldehydes, ketones and acids, for removing heavy-metal ions from liquid effluents, and for removing ozone and/or sour gases from air or inert gases.