Polymeric aluminum silicate-sulphate and process for producing same
    1.
    发明授权
    Polymeric aluminum silicate-sulphate and process for producing same 失效
    聚合硅酸铝硅酸盐及其制备方法

    公开(公告)号:US5296213A

    公开(公告)日:1994-03-22

    申请号:US929023

    申请日:1992-08-13

    摘要: The invention relates to basic polynucleate aluminum hydroxy silicate sulfate compounds and to a process for their preparation. The process involves first mixing an alkali metal silicate and an alkali metal aluminate solution and optionally a third component under continuous stirring to form an alkaline intermediate mixture and slowly adding the resulting alkaline intermediate mixture to an acidic aluminum sulfate solution under high shear mixing conditions. Compared to processes of the prior art, the present invention leads directly to solution products having higher Al.sub.2 O.sub.3 concentrations. Moreover, the products prepared through this invention exhibit enhanced stability over time, and improved performance in flocculation-coagulation application.

    摘要翻译: 本发明涉及碱性多孔铝羟基硅酸盐硫酸盐化合物及其制备方法。 该方法包括在连续搅拌下首先混合碱金属硅酸盐和碱金属铝酸盐溶液和任选的第三组分以形成碱性中间体混合物,并在高剪切混合条件下将所得碱性中间体混合物缓慢加入到酸性硫酸铝溶液中。 与现有技术的方法相比,本发明直接导致具有较高Al 2 O 3浓度的溶液产物。 此外,通过本发明制备的产品随着时间的推移表现出增强的稳定性,并且在絮凝 - 凝结应用中表现出改进的性能。