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    42.
    发明专利
    未知

    公开(公告)号：ES2175681T3

    公开(公告)日：2002-11-16

    申请号：ES98907952

    申请日：1998-01-17

    Applicant: BASF AG

    Inventor： SIGWART CHRISTOPH ,  NARBESHUBER THOMAS ,  ELLER KARSTEN ,  BARL MANFRED ,  FISCHER ROLF ,  GEHRER EUGEN

    IPC: C08F4/02 ,  C08F4/20 ,  C08F4/24 ,  C08F10/08 ,  C08F10/10 ,  C08F110/10

    Abstract: A process for preparing halogen-free, reactive polyisobutene having a terminal double bond content of more than 50 mol % and an average molecular weight Mn of 280-10000 dalton by the cationic polymerization in the liquid phase of isobutene or hydrocarbon mixtures comprising isobutene comprises polymerizing at from -30° C. to +40° C. in the presence of a heterogeneous polymerisation catalyst comprising one or more oxides of the elements of transition groups V and VI of the Periodic Table of the Elements or in the presence of a heterogeneous polymerization catalyst comprising one or more oxidic compounds of one or more elements of transition groups V and VI of the Periodic Table of the Elements supported on a non-zeolitic oxidic support material which is not an oxygen-containing zirconium compound, the catalyst not containing a technically effective amount of halogen.

    43.
    发明专利
    未知

    公开(公告)号：DE59803734D1

    公开(公告)日：2002-05-16

    申请号：DE59803734

    申请日：1998-01-17

    Applicant: BASF AG

    Inventor： SIGWART CHRISTOPH ,  NARBESHUBER THOMAS ,  ELLER KARSTEN ,  BARL MANFRED ,  FISCHER ROLF ,  GEHRER EUGEN

    IPC: C08F4/02 ,  C08F4/20 ,  C08F4/24 ,  C08F10/08 ,  C08F10/10 ,  C08F110/10

    Abstract: A process for preparing halogen-free, reactive polyisobutene having a terminal double bond content of more than 50 mol % and an average molecular weight Mn of 280-10000 dalton by the cationic polymerization in the liquid phase of isobutene or hydrocarbon mixtures comprising isobutene comprises polymerizing at from -30° C. to +40° C. in the presence of a heterogeneous polymerisation catalyst comprising one or more oxides of the elements of transition groups V and VI of the Periodic Table of the Elements or in the presence of a heterogeneous polymerization catalyst comprising one or more oxidic compounds of one or more elements of transition groups V and VI of the Periodic Table of the Elements supported on a non-zeolitic oxidic support material which is not an oxygen-containing zirconium compound, the catalyst not containing a technically effective amount of halogen.

    48.
    发明专利
    未知

    公开(公告)号：DE19809538A1

    公开(公告)日：1999-09-09

    申请号：DE19809538

    申请日：1998-03-05

    Applicant: BASF AG

    Inventor： GROSCH GEORG HEINRICH ,  LARBIG HARALD ,  LORENZ REINHARD ,  JUNGE DIETER ,  GEHRER EUGEN ,  TREULING ULRICH

    IPC: B01J27/26 ,  C08G65/10 ,  C08G65/26

    Abstract: The invention relates to a method for producing double metal cyanide compounds, comprising the following stages: a) reacting a solution of a metal salt of general formula M m(X)n with a solution of a cyanometallate compound of formula HaM (CN)b(A)c, M and M being metal cations, X and A each representing an anion and a, b, c, m and n being whole numbers selected to guarantee the electroneutrality of the particular salt and at least one of the two solutions containing at least one water-soluble organic ligand containing heteroatoms; b) combining the resulting suspension with a water-miscible ligand which can be the same as or different from the ligand used in a); and c) separating the double metal cyanide compound from the suspension. At least one of the educt solutions used in a) contains at least one inert inorganic or organic solid which is insoluble in the educts and end products.

    Method for producing 4,4' dihalogendiphenylsulfone
    50.
    发明专利
    Method for producing 4,4' dihalogendiphenylsulfone 未知

    公开(公告)号：AU8437998A

    公开(公告)日：1999-01-04

    申请号：AU8437998

    申请日：1998-06-10

    Applicant: BASF AG

    Inventor： BECKMANN STEFAN ,  REICHELT HELMUT ,  BECK KARL ,  FRIEDRICH KLAUS ,  GEHRER EUGEN ,  PLESNIVY THOMAS ,  OPPER WALTER

    IPC: B01J21/16 ,  B01J23/28 ,  B01J23/30 ,  B01J23/888 ,  B01J23/889 ,  C07C315/00 ,  C07C317/14

    Abstract: The invention relates to a method for producing 4,4'-dihalogendiphenylsulfone by reacting halogenated benzene with 4-halogenphenylsulfonyl chloride in a liquid phase at high temperature, in the presence of a solid catalyst having acid centers. The method is characterized in that the reaction of 4-halogenphenylsulfonyl chloride with formula (I), in which X is chlorine, bromine or fluorine, with chlorobenzene, bromobenzene, or fluorobenzene, is carried out in the presence of a catalyst which is selected from one of the following groups: K1) catalysts consisting of essentially stratified silicates not having Lewis acids and having proton-saturated negative layer loads, or containing these as a basic component; K2) catalysts consisting of zeolites in the acid H form, or containing these as a basic component; and K3) catalysts consisting of mixed oxides having acidic centres, or containing these as basic components. The mixed oxides consist of a combination of (a) titanium, circonium, hafnium, tin, iron or Cr(III) oxides on the one hand, and (b) vanadium, chromium(VI), molybdenum, wolfram or scandium oxides on the other hand; or the mixed oxides are sulfatized or phosphatized oxides of the group (a), and said mixed oxides are calcined after combination, at temperatures of 450 to 800 DEG C.

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