Process for separating off 1-amino-4-bromoanthraquinone-2-sulphonic acid
    2.
    发明授权
    Process for separating off 1-amino-4-bromoanthraquinone-2-sulphonic acid 失效
    分离出1-氨基-4-溴蒽醌-2-磺酸的方法

    公开(公告)号:US4246180A

    公开(公告)日:1981-01-20

    申请号:US938724

    申请日:1978-08-31

    CPC分类号: C07C303/44

    摘要: A process for separating off 1-amino-4-bromoanthraquinone-2-sulphonic acid from the reaction mixture formed by the bromination of 1-aminoanthraquinone-2-sulphonic acid in sulphuric acid, which process comprises adjusting the sulphuric acid concentration of the reaction mixture under the prevailing conditions of temperature and pressure to effect precipitation of 1-amino-4-bromoanthraquinone-2-sulphonic acid as the sulphate and thereafter separating the resultant sulphate precipitate from the reaction mixture.

    摘要翻译: 从1-氨基蒽醌-2-磺酸在硫酸中溴化形成的反应混合物中分离出1-氨基-4-溴蒽醌-2-磺酸的方法,该方法包括调节反应混合物的硫酸浓度 在主要的温度和压力条件下,以1-氨基-4-溴蒽醌-2-磺酸作为硫酸盐沉淀,然后将所得的硫酸盐沉淀物与反应混合物分离。