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    PROCESS FOR PRODUCING 4,4'-DICHLORODIPHENYL SULFONE
    1.
    发明申请
    PROCESS FOR PRODUCING 4,4'-DICHLORODIPHENYL SULFONE 审中-公开

    公开(公告)号：WO2021037675A1

    公开(公告)日：2021-03-04

    申请号：PCT/EP2020/073359

    申请日：2020-08-20

    申请人： BASF SE

    发明人： GAO, Jun ,  THRUN, Frauke ,  THIEL, Indre ,  HAMANN, Jessica Nadine ,  SCHUETZ, Christian ,  BLEI, Stefan

    IPC分类号： C07C315/02 ,  C07C317/14

    摘要： The invention relates to a process for producing 4,4'-dichlorodiphenyl sulfone, comprising: (I) reacting thionyl chloride, chlorobenzene and aluminum chloride forming an intermediate reaction product and hydrogen chloride; (II) mixing aqueous hydrochloric acid and the intermediate reaction product to obtain an organic phase comprising 4,4'-dichlorodiphenyl sulfoxide and an aqueous phase; (III) cooling the organic phase to a temperature below the saturation point of 4,4'- dichlorodiphenyl sulfoxide to obtain a suspension; (IV) solid-liquid-separation of the suspension to obtain crystallized 4,4'-dichlorodiphenyl sulfoxide, and mother liquor; (V) washing the crystallized 4,4'-dichlorodiphenyl sulfoxide with a carboxylic acid to obtain carboxylic acid-wet 4,4'-dichlorodiphenyl sulfoxide; (VI) reacting the washed 4,4'-dichlorodiphenyl sulfoxide and an oxidizing agent in a carboxylic acid as solvent to obtain a reaction mixture comprising 4,4'-dichlorodiphenyl sulfone and carboxylic acid; (VII) separating the reaction mixture comprising 4,4'-dichlorodiphenyl sulfone and carboxylic acid into a residual moisture comprising 4,4'-dichlorodiphenyl sulfone as crude product and a liquid phase comprising carboxylic acid.

    A PROCESS FOR PRODUCING 4,4'-DICHLORODIPHENYL SULFONE
    3.
    发明申请
    A PROCESS FOR PRODUCING 4,4'-DICHLORODIPHENYL SULFONE 审中-公开

    公开(公告)号：WO2021037672A1

    公开(公告)日：2021-03-04

    申请号：PCT/EP2020/073356

    申请日：2020-08-20

    申请人： BASF SE

    发明人： THRUN, Frauke ,  HAMANN, Jessica Nadine ,  SCHUETZ, Christian ,  BEY, Oliver ,  BLEI, Stefan

    IPC分类号： C07C315/02 ,  C07C317/14

    摘要： The invention relates to a process for producing 4,4'-dichlorodiphenyl sulfone, comprising: (a) reacting 4,4'-dichlorodiphenyl sulfoxide and an oxidizing agent in at least one carboxylic acid as solvent to obtain a reaction mixture comprising 4,4'-dichlorodiphenyl sulfone and carboxylic acid; (b) separating the reaction mixture into a first stream comprising 4,4'-dichlorodiphenyl sulfone and a second stream comprising carboxylic acid; (c) purifying the second stream comprising carboxylic acid by distilling a part of the second stream comprising carboxylic acid stripping low boilers from at least a part of the second stream comprising carboxylic acid (d) recycling the purified carboxylic acid into the reaction (a).

    VERFAHREN ZUR REINIGUNG VON CYCLOHEXADEC-8-EN-1-ON
    6.
    发明申请
    VERFAHREN ZUR REINIGUNG VON CYCLOHEXADEC-8-EN-1-ON 审中-公开
    PROCEDURE FOR CLEANING环十六-8-CN-1-ON

    公开(公告)号：WO2017060437A1

    公开(公告)日：2017-04-13

    申请号：PCT/EP2016/074016

    申请日：2016-10-07

    申请人： BASF SE

    发明人： THRUN, Frauke ,  TELES, Joaquim Henrique ,  WERNER, Albert ,  PELZER, Ralf

    IPC分类号： C07C45/32 ,  C07C45/79 ,  C07C45/82 ,  C07C49/587

    CPC分类号： C07C45/28 ,  C07C45/54 ,  C07C45/79 ,  C07C45/82 ,  C07C49/587 ,  C07C47/38

    摘要： Die vorliegende Erfindung betrifft ein neuartiges Verfahren zur Reinigung von Cyclohexadec-8-en-1-οn, ein Verfahren zur Herstellung von Cyclohexadec-8-en-1-on und Cyclopentadecenonen, die damit hergestellten Stoffe und Stoffgemische und deren Verwendung als Aromastoff, insbesondere als Riechstoff, sowie Aromastoffzusammensetzungen und Mittel, enthaltend diese Gemische.

    摘要翻译： 本发明涉及一种新的方法，用于环十六-8-烯-1-οn的纯化，对于环十六-8-烯-1-酮和Cyclopentadecenonen，将由此产生的物质和组合物，以及它们作为调味剂使用的制备方法，特别是 作为添味剂和调味剂组合物和包含这些混合物的组合物。

    A PROCESS FOR PURIFYING 4,4'-DICHLORODIPHENYL SULFONE
    7.
    发明申请
    A PROCESS FOR PURIFYING 4,4'-DICHLORODIPHENYL SULFONE 审中-公开

    公开(公告)号：WO2021037683A1

    公开(公告)日：2021-03-04

    申请号：PCT/EP2020/073375

    申请日：2020-08-20

    申请人： BASF SE

    发明人： HAMANN, Jessica Nadine ,  BEY, Oliver ,  DECKERT, Petra ,  MELZER, Andreas ,  SCHUETZ, Christian ,  BLEI, Stefan ,  THRUN, Frauke

    IPC分类号： C07C315/06 ,  C07C317/04

    摘要： The invention relates to a process for purifying 4,4'-dichlorodiphenyl sulfone comprising: (a) providing a suspension comprising particulate 4,4'-dichlorodiphenyl sulfone in carboxylic acid, (b) carrying out a solid-liquid separation of the suspension to obtain residual moisture containing 4,4'-dichlorodiphenyl sulfone and a carboxylic acid comprising filtrate, (c) washing the residual moisture containing 4,4'-dichlorodiphenyl sulfone with an aqueous base and then with water, (d) mixing the aqueous base after being used for washing with a strong acid, or mixing the aqueous base after being used for washing, the carboxylic acid comprising filtrate and a strong acid, (e) carrying out a phase separation in which an aqueous phase and an organic phase comprising the carboxylic acid are obtained.

    A PROCESS FOR PURIFYING CRUDE 4,4'-DICHLORODIPHENYL SULFONE
    8.
    发明申请
    A PROCESS FOR PURIFYING CRUDE 4,4'-DICHLORODIPHENYL SULFONE 审中-公开

    公开(公告)号：WO2021037682A1

    公开(公告)日：2021-03-04

    申请号：PCT/EP2020/073373

    申请日：2020-08-20

    申请人： BASF SE

    发明人： BLEI, Stefan ,  HAMANN, Jessica Nadine ,  METZGER, Lukas ,  SCHUETZ, Christian ,  GAO, Jun ,  THRUN, Frauke ,  MELZER, Andreas ,  MUELLER, Michael Klemens

    IPC分类号： C07C315/06 ,  C07C317/14

    摘要： The invention relates to a process for purifying crude 4,4'-dichlorodiphenyl sulfone comprising: (a) dissolving the crude 4,4'-dichlorodiphenyl sulfone which may contain water in an organic solvent in which 4,4'-dichlorodiphenyl sulfone has a solubility of 0.5 to 20% at 20°C and optionally adding water to obtain a solution which comprises 4,4'-dichlorodiphenyl sulfone, the organic solvent and 1 to 30 wt% water based on the amount of 4,4'-dichlorodiphenyl sulfone and water; (b) cooling the solution to a temperature below the saturation point of 4,4'-dichlorodiphenyl sulfone to obtain a suspension comprising crystallized 4,4'-dichlorodiphenyl sulfone; (c) carrying out a solid-liquid separation to obtain residual moisture containing 4,4'-dichlorodiphenyl sulfone and a mother liquor; (d) washing the residual moisture containing 4,4'-dichlorodiphenyl sulfone with an organic solvent in which 4,4'-dichlorodiphenyl sulfone has a solubility of 0.5 to 20% at 20°C; (e) optionally repeating steps (b) to (d); (f) drying the 4,4'-dichlorodiphenyl sulfone.

    PROCESS FOR PREPARING AN ORGANIC SULFONE
    9.
    发明申请
    PROCESS FOR PREPARING AN ORGANIC SULFONE 审中-公开
    制备有机硫磺的方法

    公开(公告)号：WO2018007481A1

    公开(公告)日：2018-01-11

    申请号：PCT/EP2017/066857

    申请日：2017-07-06

    申请人： BASF SE

    发明人： THRUN, Frauke ,  TELES, Joaquim Henrique ,  GAO, Jun

    IPC分类号： C07C315/02 ,  C07C317/10 ,  C07C317/14 ,  C07C317/44

    摘要： A process for preparing polyaryl ethers in which a polycondensation of the monomer building blocks is carried out using microwave irradiation leads to thermoplastic molding compositions having improved color properties.

    摘要翻译： 制备其中使用微波辐射进行单体结构单元的缩聚的聚芳基醚的方法导致热塑性模塑组合物具有改进的颜色性能。