An SFG spectroscopy study of the interfacial water structure and the adsorption of sodium silicate at the fluorite and silica surfaces
发布时间：2020-04-01
点击次数：
发表刊物：MINERALS ENGINEERING
关键字：VIBRATIONAL SUM-FREQUENCY; SELECTIVE FLOTATION; GENERATION; CALCITE; ACID; SCHEELITE; KINETICS; SPEC
摘要：Sodium silicate (SS) is often used as a depressant or a dispersant to improve the selectivity of froth flotation. The depressing ability of SS changes with its concentration and the solution pH. However, the depressing mechanism is unclear. In this paper, sum frequency generation spectroscopy was used to investigate the water structure at the mineral-water interface to provide a molecular understanding of SS adsorption and its role in flotation. Our study shows that a significant amount of silicate species adsorbs at the fluorite-water and silica-water interfaces in a wide range of pH, indepen
合写作者：Sun Wei, V, Anh, Nguyen, Hu Yuehua, Peng Mengsong, Han haisheng
论文类型：基础研究
论文编号：6
学科门类：矿业工程
文献类型：J
卷号：138
页面范围：178-187
ISSN号：0892-6875
是否译文：否
发表时间：2019-06-01