Process for improving the rheological properties of a suspension of
precipitated silica
    2.
    发明授权
    Process for improving the rheological properties of a suspension of precipitated silica 失效
    改善沉淀二氧化硅悬浮液流变性能的方法

    公开(公告)号:US4537699A

    公开(公告)日:1985-08-27

    申请号:US554640

    申请日:1983-11-23

    申请人: Jean-Noel Jas

    发明人: Jean-Noel Jas

    CPC分类号: C01B33/1417 C08K3/36

    摘要: The present invention provides a process for improving the rheological properties of a suspension of precipitated silica by the addition of an aluminum compound, thereby producing a sprayable suspension or slurry with a pH of greater than 3.5, a solids content of at least about 15% by weight, which may be spray dried to form silica in either powder or microbead form. In a preferred embodiment, the aluminum compound added to the suspension is in the form of sodium aluminate.

    摘要翻译: 本发明提供了一种通过加入铝化合物来改善沉淀二氧化硅悬浮液的流变性能的方法,由此产生pH大于3.5的固体含量至少约15%的可喷雾悬浮液或浆料,固体含量至少约为15% 重量,其可以喷雾干燥以形成粉末或微珠形式的二氧化硅。 在优选的实施方案中,加入到悬浮液中的铝化合物是铝酸钠的形式。