论文部分内容阅读
通过流变参数、电泳淌度和ｐＨ值的测定，研究了无机盐（ＣａＣｌ_２、ＫＣｌ、ＮａＣｌ）和ｐＨ值对铝镁混合金属氢氧化物与钠土悬浮体间相互作用的影响．发现随着混合金属氢氧化物含量的增加，钠土体系的ｐＨ值逐渐降低，而动切力（ＹＰ）先上升，经最大值后逐渐下降；当钠土体系为ＮａＣｌ所饱和时，相同混合金属氢氧化物加量下ＹＰ的上升幅度明显减小，在实验混合金属氢氧化物浓度范围内，ＹＰ未出现峰值。混合金属氢氧化物／钠土体系的ＹＰ随ｐＨ值的变化曲线呈抛物线形，加入相同浓度的无机盐，△ＹＰ、△ｐＨ（绝对值）按ＣａＣｌ_２＞ＫＣｌ～ＮａＣｌ次序递减。
The effects of inorganic salts (CaCl 2, KCl, NaCl) and pH on the interaction between Al-Mg mixed metal hydroxides and sodium-suspended solids were studied by rheological parameters, electrophoretic mobility and pH. It was found that with the increase of the content of mixed metal hydroxide, the pH value of sodium-earth system gradually decreased while the dynamic shear force (YP) first increased and then decreased gradually after reaching the maximum value. When sodium and sodium was saturated with NaCl, the same mixing The increase of YP in the amount of metal hydroxide decreased obviously, but there was no peak of YP in the experimental mixed metal hydroxide concentration range. The curve of YP in mixed metal-hydroxide / sodium-earth system with pH was parabolic, adding the same concentration of inorganic salt, △ YP, △ pH (absolute value) decreasing order of CaCl_2> KCl ~ NaCl.