研磨
聚丙烯酸钠
分散性
泥浆
分散剂
六偏磷酸钠
碳酸钙
化学
中和
碳酸钠
化学工程
碳酸盐
吸附
矿物学
钠
材料科学
冶金
高分子化学
色散(光学)
有机化学
复合材料
原材料
物理
免疫学
抗体
光学
生物
工程类
标识
DOI:10.1002/ceat.202100388
摘要
Abstract The most commonly used additive in wet grinding of calcium carbonate is a low‐polydispersity‐index sodium polyacrylate with an optimized molecular weight. A similar polyacrylate was tested under different Na‐Ca and Na‐Mg neutralization states. Results of the grinding experiments revealed logarithmic relations between the weight percentage of fine particles and specific energy consumption (SEC). Power‐law functions were established between the median size and SEC. A steady increase of SEC occurred with r = M 2+ /CO 2 − . This energy increment with r is greater when the grinding aid is a Na‐Ca‐neutralized polyacrylate. Moreover, the quantities of non‐adsorbed dispersant in the ground calcium carbonate suspensions after grinding decline with r and are not dependent on the nature of M 2+ .
科研通智能强力驱动
Strongly Powered by AbleSci AI