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    Method for producing 4,4' dihalogendiphenylsulfone
    3.
    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.

    METHOD FOR PRODUCING 4,4' DIHALOGENDIPHENYLSULFONE
    4.
    发明专利
    METHOD FOR PRODUCING 4,4' DIHALOGENDIPHENYLSULFONE 未知

    公开(公告)号：CA2283894A1

    公开(公告)日：1998-12-30

    申请号：CA2283894

    申请日：1998-06-10

    Applicant: BASF AG

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

    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 4halogenphenylsulfonyl 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 ~C.

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