摘要
针对微细粒萤石和石英异相凝聚问题,采用沉降抽液法研究了4种分散剂对萤石、石英纯矿物及1∶1人工混合矿分散行为的影响.结果表明:4种分散剂对混合矿分散能力的强弱顺序为:六偏磷酸钠>碳酸钠>硅酸钠>氟硅酸钠.六偏磷酸钠主要通过空间位阻效应、碳酸钠主要通过降低表面电位值、硅酸钠通过降低萤石表面电位值以及H2SiO3分子的亲水性、氟硅酸钠主要通过H2SiO3分子的亲水性来实现微细粒萤石和石英的分散.
Aiming at the problem of heterogeneous agglomeration of fine-grained fluorite and quartz,the effects of four dispersants on the dispersion behavior of fluorite,pure quartz minerals and 1∶1 artificial mixed ore were studied by using the sedimentation pumping method.The results show that the dispersing ability of the four dispersants for the mixed ore is as follows:sodium hexametaphosphate>sodium carbonate>sodium silicate>sodium fluorosilicate.Sodium hexametaphosphate realizes the dispersion of fine fluorite and quartz mainly through steric hindrance effect,and sodium carbonate does it mainly by reducing the surface potential;Sodium silicate realizes the dispersion through reducing the surface potential of fluorite and the hydrophilicity of H2SiO3 molecule,while sodium fluorosilicate achieves it mainly through the hydrophilicity of H2SiO3 molecule.
作者
张静茹
汤家焰
任建辉
王志芳
ZHANG Jingru;TANG Jiayan;REN Jianhui;WANG Zhifang(Mining Research Institute,Inner Mongolia University of Science and Technology, Baotou 014010, China;Mining and Coal School, Inner Mongolia University of Science and Technology, Baotou 014010, China)
出处
《内蒙古科技大学学报》
CAS
2020年第3期217-221,共5页
Journal of Inner Mongolia University of Science and Technology
基金
内蒙古自治区高等学校科学研究基金资助项目(NJZY19131)
内蒙古自治区自然科学基金资助项目(2019BS05019)。
关键词
微细粒
石英
萤石
分散剂
the microgranular
quartz
fluorite
dispersant
