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    Method for purifying a bromine compound
    2.
    发明公开
    Method for purifying a bromine compound 有权
    Verfahren zur Reinigung einer Bromverbindung

    公开(公告)号：EP0913381A1

    公开(公告)日：1999-05-06

    申请号：EP98308815.4

    申请日：1998-10-28

    申请人： Teijin Chemicals, Ltd.

    发明人： Taketani, Yutaka, Teijin Chemicals, Ltd. ,  Hoshimi, Haruhisa, Teijin Chemicals, Ltd. ,  Mukai, Akihiro, Teijin Chemicals, Ltd. ,  Tahira, Yasuhisa, Teijin Chemicals, Ltd. ,  Sato, Takahiro, Teijin Chemicals, Ltd.

    IPC分类号： C07C41/22 ,  C07C43/225

    CPC分类号： C07C41/40 ,  C07C43/225

    摘要： A method for purifying a bromine compound of formula (1):
    in which Ar 1 and Ar 2 are each independently a C 6-10 aromatic hydrocarbon group; Y is a C 1-2 alkylene group, a single bond, sulfone group or ketone group; R 1 and R 2 are each independently a C 2-5 hydrocarbon group; m and n are each independently an integer of 1 to 4; p and q are each independently 2 or 4;
       by depositing the bromine compound as solid particles from a crude solution containing the bromine compound wherein

    (i) the crude solution is supplied into a slurry containing the particles of the bromine compound;
    (ii) the concentration of the particles of the bromine compound in the slurry is maintained at 10 to 50 wt%;
    (iii) the solvent contained in the slurry is a mixed solvent of a good solvent and a poor solvent for the bromine compound and the solubility of the bromine compound in the mixed solvent is maintained at 0.1 to 5 g/100 g of solvent; and
    (iv) the solid particles of the bromine compound are separated from the slurry.

    摘要翻译： 用于纯化式（1）的溴化合物的方法：其中Ar 1和Ar 2各自独立地为C 6-10芳族烃基; Y是C1-2亚烷基，单键，砜基或酮基; R 1和R 2各自独立地为C 2-5烃基; m和n各自独立地为1〜4的整数; p和q各自独立地为2或4; 通过从含有溴化合物的粗溶液中沉积作为固体颗粒的溴化合物，其中（i）将粗溶液供入包含溴化合物颗粒的浆液中; （ii）浆料中溴化合物颗粒的浓度保持在10〜50重量％。 （iii）浆料中所含的溶剂是溴化合物的良溶剂和不良溶剂的混合溶剂，溴化合物在混合溶剂中的溶解度保持在0.1〜5g / 100g溶剂; 和（iv）将溴化合物的固体颗粒与浆料分离。