Journal:MINERALS ENGINEERING
Key Words:VIBRATIONAL SUM-FREQUENCY; SELECTIVE FLOTATION; GENERATION; CALCITE; ACID; SCHEELITE; KINETICS; SPEC
Abstract: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
Co-author:Sun Wei, V, Anh, Nguyen, Hu Yuehua, Peng Mengsong, Han haisheng
Indexed by:Unit Twenty Basic Research
Document Code:6
Discipline:矿业工程
Document Type:J
Volume:138
Page Number:178-187
ISSN No.:0892-6875
Translation or Not:no