Separation of discolorants from clay
    53.
    发明授权
    Separation of discolorants from clay 失效
    粘土分离物

    公开(公告)号:US3659708A

    公开(公告)日:1972-05-02

    申请号:US3659708D

    申请日:1968-11-04

    IPC分类号: B03B1/00 B03B1/04 C01B35/00

    CPC分类号: B03B1/00

    摘要: A process for beneficiating a dispersed kaolin clay mass by removing from a dispersed clay mass the contaminant which causes the formation of a thin, dull layer of yellow or brownish-yellow material, commonly referred to as ''''scum,'''' on surfaces of dried material containing the dispersed clay. The process comprises raising the pH of an aqueous dispersion of the clay to at least 12 and at that pH separating the insoluble clay from the solubilized discoloring contaminant.

    摘要翻译: 通过从分散的粘土质量中除去导致在干燥材料的表面上形成通常称为“浮渣”的薄而沉闷的黄色或棕黄色材料层的污染物的方法,该方法包括 分散的粘土。 该方法包括将粘土的水性分散体的pH提高至至少12,并将该不溶性粘土与溶解的变色污染物分离。