Preparation of disazo condensation pigments in microreactors
    5.
    发明授权
    Preparation of disazo condensation pigments in microreactors 失效
    在微反应器中制备双偶氮缩合颜料

    公开(公告)号:US06437104B1

    公开(公告)日:2002-08-20

    申请号:US09894342

    申请日:2001-06-28

    IPC分类号: C09B4100

    摘要: A process for preparing disazo condensation pigments by diazotization of an aromatic amine, azo coupling with a coupling component to form an azocarboxylic acid or azodicarboxylic acid, formation of an azocarbonyl chloride or azodicarbonyl dichloride and condensation of the azocarbonyl chloride with an aromatic diamine or of the azodicarbonyl dichloride with an aromatic amine comprises effecting the acyl chloride formation and/or the condensation and optionally the diazotization and optionally the azo coupling in a microreactor.

    摘要翻译: 通过芳族胺的重氮化偶联偶联偶联偶联偶联偶联偶氮二羧酸或偶氮二羧酸的偶氮偶合制备双偶氮缩合颜料的方法,氮代羰基氯或偶氮二羰基二氯化物的形成和氮代羰基氯与芳族二胺或 偶氮二羰基二氯化物与芳族胺包括在微反应器中进行酰氯形成和/或缩合以及任选的重氮化和任选的偶氮偶联。

    Process for producing highly concentrated pigment presscakes
    10.
    发明授权
    Process for producing highly concentrated pigment presscakes 失效
    生产高浓缩颜料压克力的方法

    公开(公告)号:US06436182B1

    公开(公告)日:2002-08-20

    申请号:US09612470

    申请日:2000-07-07

    IPC分类号: B01D3702

    CPC分类号: C09B67/0096

    摘要: The invention relates to an advantageous process for producing highly concentrated pigment presscakes which comprises concentrating a pigment suspension on a high-pressure filter press with a pressure of at least 16 bar to a pigment content of at least 50% by weight without adding nonionic surfactants which have a cloud point in water.

    摘要翻译: 本发明涉及用于生产高浓缩颜料压饼的有利方法,其包括将颜料悬浮液在至少16巴的压力下在高压压滤机上浓缩至颜料含量至少为50重量%,而不添加非离子表面活性剂 在水中有一个浊点。