THE SiOi H20 INTERFACE AND EFFECTS ON QUARTZ ACTIVATION IN FLOTATION SYSTEM
来源期刊：中国有色金属学报(英文版)1992年第2期
论文作者：Sun, Zhongxi Willis, Forsling Chen, Jin
文章页码：16 - 22
Key words：surface complexation ； SiO2-H2O interfac；e quartz flotation
Abstract: The correlation between surface complexation at the SiO2-H2O interface and quartz flotation behavior was studied. Computer assisted calculations, using the programs SOLGASWATER, were adapted in order to construct distribution diagrams of surface speciation in the SiO2-metal ion-H+ system in aqueous solutions. Equilibrium constants far both surface and solution reactions were introduced in the composition matrix. Surface complexation, surface charge as well as flotation results were compared and a good agreement was obtained.Furthermore, flotation mechanisms of quartz activation by common metal ions like Ca2+,Mg2+,Fe3+ are quantitatively discussed based on the surface reaction equilibrium constants.
