硅酸盐通报2018，Vol.37Issue(1)：357-362,6.
分散剂对某膨润土矿分散行为影响研究
Effect of Dispersant on Dispersion Behavior of Bentonite
周鹏 1高惠民 1任子杰 2岑对对1
作者信息
- 1. 武汉理工大学资源与环境工程学院,武汉 430070
- 2. 矿物资源加工与环境湖北省重点实验室,武汉 430070
- 折叠
摘要
Abstract
High purity bentonite is of great value,and classifying process is largely critical to improve the purity of bentonite.In this paper,using bentonite collected from a certain area as the subject,classifying test was conducted on the basis of ore properties,to study the effect of dispersant type and amount on the yield of each classification and the content of montmorillonite, as well as the law and mechanism of dispersant influencing mineral dispersion behavior.The results show that when the dispersant dosage is 0.5%, the dispersion effect order of different reagents is: sodium polyacrylate >sodium hexametaphosphate >sodium pyrophosphate, which is estimated by the yield of -5 μm classification.With high negative charge density, the particle surface potential absolute value of sodium polyacrylate increases, and the electrostatic repulsion enhances,which inhibites the accumulation of particles and gravity sedimentation. Thus,the dispersion degree of the pulp is greatly improved.关键词
膨润土/分散/六偏磷酸钠/聚丙烯酸钠/焦磷酸钠/Zeta电位Key words
bentonite/purification/hexametaphosphate/sodium polyacrylate/sodium pyrophosphate/Zeta potential分类
矿业与冶金引用本文复制引用
周鹏,高惠民,任子杰,岑对对..分散剂对某膨润土矿分散行为影响研究[J].硅酸盐通报,2018,37(1):357-362,6.
