Dispersible silica pigment
    2.
    发明授权
    Dispersible silica pigment 失效
    分散二氧化硅颜料

    公开(公告)号:US3902915A

    公开(公告)日:1975-09-02

    申请号:US26778372

    申请日:1972-06-30

    摘要: Readily dispersible pelletized silica, useful as rubber and paper pigments are provided by treating an aqueous silica slurry having a solids content less than about 25 percent by weight, with a minor amount of a surface active agent, preferably a cationic dialkyl dimethyl ammonium chloride followed by simultaneously pelletizing and drying the silica in a moving bed.

    摘要翻译: 通过用少量的表面活性剂,优选阳离子二烷基二甲基氯化铵处理具有小于约25重量%的固体含量的二氧化硅水溶液,然后加入用作橡胶和纸颜料的容易分散的颗粒状二氧化硅 同时在移动床中造粒和干燥二氧化硅。