Recovery of purified 1-nitroanthraquinone
    1.
    发明授权
    Recovery of purified 1-nitroanthraquinone 失效
    回收纯化的1-硝基蒽醌

    公开(公告)号:US3923845A

    公开(公告)日:1975-12-02

    申请号:US38483473

    申请日:1973-08-02

    Applicant: BASF AG

    CPC classification number: C07C201/16 C07C205/47

    Abstract: A process for the recovery of 1-nitroanthraquinone in a purified state from a nitroanthraquinone mixture containing it by treatment with a base in the presence of an initiator such as nitrite, halide, thiocyanate, alcoholate or phenolate ions in an organic solvent. A 1-nitroanthraquinone is obtained which is essentially pure or contains only small quantities of isomers and dinitroanthraquinones.

    Abstract translation: 通过在有机溶剂中在引发剂如亚硝酸盐,卤化物,硫氰酸盐,醇化物或酚盐离子存在下用碱处理,从含有它的硝基蒽醌混合物中回收纯化状态的1-硝基蒽醌的方法。 得到基本上纯的或仅含有少量异构体和二硝基蒽醌的1-硝基蒽醌。

    APPARATUS FOR CONTINUOUS TREATMENT AND PROCESSING OF SOLID AND/OR LIQUID MATERIALS

    公开(公告)号:CA1014349A

    公开(公告)日:1977-07-26

    申请号:CA175934

    申请日:1973-07-09

    Applicant: BASF AG

    Abstract: 1434235 Cleaning rotary drum treatment apparatus BASF AG 9 July 1973 [10 July 1972] 32509/73 Heading F2N [Also in Divisions F4B and B1-B2] For removing or preventing the build up of incrustation adjacent an end wall 2 of a rotary cylindrical processing chamber 1 (e.g. a kiln, furnace, mixer or mill), a scraper 4-9, mounted on a freely rotatable hollow shaft 3, is located adjacent the wall 2 and eccentrically of the axis of cylindrical chamber 1. Product to be processed is introduced into the chamber by a feed pipe (not shown) inserted through the shaft 3. In use, frictional forces between the chamber walls and the scraper and/or between the product and the scraper cause the scraper to rotate at a lower speed than that of the chamber. The scraper may be cruciform, stellate, discshaped, serrated or annular, may be heated or cooled, and may scrape a region of the cylindrical wall of the chamber adjacent wall 2 as well as wall 2 itself.

    FACILITY FOR CONTINUOUS TREATMENT OF THE SOLID AND/OR LIQUID MATERIAL

    公开(公告)号:CS190392B2

    公开(公告)日:1979-05-31

    申请号:CS493873

    申请日:1973-07-09

    Applicant: BASF AG

    Abstract: 1434235 Cleaning rotary drum treatment apparatus BASF AG 9 July 1973 [10 July 1972] 32509/73 Heading F2N [Also in Divisions F4B and B1-B2] For removing or preventing the build up of incrustation adjacent an end wall 2 of a rotary cylindrical processing chamber 1 (e.g. a kiln, furnace, mixer or mill), a scraper 4-9, mounted on a freely rotatable hollow shaft 3, is located adjacent the wall 2 and eccentrically of the axis of cylindrical chamber 1. Product to be processed is introduced into the chamber by a feed pipe (not shown) inserted through the shaft 3. In use, frictional forces between the chamber walls and the scraper and/or between the product and the scraper cause the scraper to rotate at a lower speed than that of the chamber. The scraper may be cruciform, stellate, discshaped, serrated or annular, may be heated or cooled, and may scrape a region of the cylindrical wall of the chamber adjacent wall 2 as well as wall 2 itself.

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