论文部分内容阅读
评价活性白土的质量,目前广泛采用的是脱色力、吸蓝量等参数。本文讨论了活化蒙脱石 b 轴有序度参数 H/W值及引起 H/W 值变化的八面体结构中(Fe+Mg+Al)溶出量、Si/(Fe+Mg+Al)原子比与脱色力、最佳活化酸度之间的关系。当活化蒙脱石八面体(Fe+Mg+Al)溶出量为1/3～1/2时,b 轴有序度降低幅度 a 在20%～50%之间,这时活化蒙脱石具有最大外表面积、集合体形态呈边一面接触,因而活性白土处于最佳吸附脱色状态,而且具有最大脱色能力。H/W 值对选择活性白土原料、评价和监控活性白土质量,比其它参数更快速、简便、有效。
Evaluation of the quality of activated clay, currently widely used is the bleaching power, blue absorption and other parameters. In this paper, the atomic ratio of Si / (Fe + Mg + Al) in activated octahedral montmorillonite (H / W) and the amount of (Fe + Mg + Al) And decolorization, the relationship between the best activated acidity. When the amount of activated montmorillonite octahedra (Fe + Mg + Al) is 1/3 ~ 1/2, the decreasing degree of b-axis order is between 20% ~ 50%, then activated montmorillonite has Maximum external surface area, the shape of the aggregate was side by side contact, so the active clay in the best state of adsorption and decolorization, and has the greatest decolorization. H / W Value For the selection of activated clay raw materials, the quality of activated clay is evaluated and monitored, faster, easier and more effective than the other parameters.