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    MANUFACTURE OF BIMETALLIC CYANIDE CATALYST
    1.
    发明专利
    MANUFACTURE OF BIMETALLIC CYANIDE CATALYST 失效

    公开(公告)号：JPH10277398A

    公开(公告)日：1998-10-20

    申请号：JP4805698

    申请日：1998-02-27

    Applicant: BASF AG

    Inventor： GROSCH GEORG HEINRICH DR ,  LARBIG HARALD DR ,  JUNGE DIETER ,  GEELEN DANIELLA DR ,  DE VOCHT PETER ,  HOEPPNER GERD

    IPC: B01J31/18 ,  B01J27/26 ,  C08G18/48 ,  C08G65/10 ,  C08G65/26

    Abstract: PROBLEM TO BE SOLVED: To manufacture a highly active catalyst which does not produce a large amount of solid content and requires a simple catalytic process by causing a chemical reaction between an aqueous metallic salt solution and an aqueous cyanomethallic acid solution, both of which are expressed by specific formulae respectively. SOLUTION: An aqueous water-soluble metallic salt solution is expressed by formula I in which M1 is the metallic ion of either of Zn , Fe , CO or Ni2+ , X is the anion of halide or hydroxide and m, n are integers corresponding to the atomic values of M1 and X. An aqueous cyanometallic acid solution is expressed by formula II in which M2 in the metallic ion of either of Fe2+ , Fe3+ , CO , Cr3+ , Rh3+ , Ni or CO , H is hydrogen, A is the anion of halide or hydroxide, and a, b, c are the integers selected so that cyanide is electrically neutralized. These aqueous solutions are caused to chemically react with each other, and further, the reaction product is caused to undergo a chemical reaction with a ligand which can be mixed with water, if necessary and contains a heteroatom. Thus a polymetallic cyanide complex produced consequently is separated from the suspension.

    3.
    发明专利
    未知

    公开(公告)号：AT275163T

    公开(公告)日：2004-09-15

    申请号：AT00993409

    申请日：2000-12-06

    Applicant: BASF AG

    Inventor： HARRE KATHRIN ,  HOEPPNER GERD ,  GROSCH GEORG HEINRICH ,  BAUER STEPHAN ,  WINKLER JUERGEN ,  PAREDIS ELS ,  LORENZ REINHARD ,  ROTERMUND INGE

    IPC: C08G65/20 ,  C08G18/48 ,  C08G65/26

    Abstract: In a process for preparing polyether alcohols by catalytic addition of at least two alkylene oxides onto H-functional initiator substances, at least one multimetal cyanide compound is used as catalyst and the addition of the alkylene oxides onto the initiator substance includes incorporation of at least one oxyalkylene block during whose formation at least two alkylene oxides are metered in together and the ratio of the alkylene oxides to one another in the mixture is changed during the joint introduction.

    PRODUCCION DE ESPUMAS DE POLIURETANO FLEXIBLES.
    9.
    发明专利
    PRODUCCION DE ESPUMAS DE POLIURETANO FLEXIBLES. 未知

    公开(公告)号：MX9705467A

    公开(公告)日：1998-01-31

    申请号：MX9705467

    申请日：1997-07-18

    Applicant: BASF AG

    Inventor： GUETTES BERN ,  DINSCH STEFAN ,  STEINCHEN KARL-HEINZ ,  HOEPPNER GERD ,  WAGNER KLAUS ,  LARBIG HARALD ,  LUTTER HEINZ-DIETER

    Abstract: En un proceso para producir espumas de poliuretano flexibles haciendo reaccionar a) poliisocianatos orgánicos y/o orgánicos modificados con b) compuestos de peso molecular relativamente elevado que contienen por lo menos dos átomos de hidrogeno reactivos, y c) si se desea extendedores de cadena de peso molecular bajo y/o reticulantes, en la presencia de d) agentes de soplado, e) catalizadores, f) retardadores de flama, y si se desea g) auxiliares adicionales y/o aditivos; los compuestos de peso molecular relativamente elevado que contienen por lo menos dos átomos de hidrogeno reactivos (b) comprenden por lo menos 10% en peso de polioles de poliéter, los cuales pueden prepararse mediante reaccion de base catalizada de oxidos de etileno inferiores con substancias iniciadoras OH-funcionales y se someten, durante o después de la adicion molecular de oxido de etileno, a un tratamiento térmico/de destilacion combinados en un contenido de agua de cuando más 0.1% en peso. la espuma de PUR flexible producida de conformidad con la presente invencion puede usarse en sectores de automoviles y de muebles y para producir composiciones de espuma/textiles flexibles.

    10.
    发明专利
    未知

    公开(公告)号：DE602005004539D1

    公开(公告)日：2008-03-13

    申请号：DE602005004539

    申请日：2005-04-21

    Applicant: BASF AG

    Inventor： OSTROWSKI THOMAS ,  RUPPEL RAIMUND ,  HOEPPNER GERD ,  BERGMANN SASCHA ,  VANDEWALLE KOEN ,  BAUM EVA

    IPC: C08G65/26 ,  C08G18/48

    Abstract: Process for preparing polyether polyols having an end block of ethylene oxide by addition of alkylene oxides onto H-functional starter substances, in which A) a polyether polyol precursor is prepared by means of double metal cyanide (DMC) catalysis in a semicontinuous mode of operation in which previously prepared polyether polyol together with the DMC catalyst are placed in a reactor and H-functional starter substance and propylene oxide are added continuously, B) the polyether polyol precursor from stage A) is reacted with propylene oxide or an ethylene oxide/propylene oxide mixture in the presence of the DMC catalyst in a continuously operating reactor to give a polyether polyol intermediate, C) the intermediate from stage B) is mixed with an alkali metal hydroxide as catalyst and D) reacted with ethylene oxide in a continuously operating reactor to give the final product, E) the catalyst is separated off from the final product obtained in stage D).

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