Why Sodium Silicate Is The Most Common Inhibitor of Scheelite Flotation
There are many inhibitors of scheelite flotation, but the most popular and widely used is sodium silicate , which is recognized by industry as the most effective and cost effective inhibitor. Sodium silicate , commonly known as water glass , the molecular formula Na 2 SiO 3 is a water-soluble silicate, is a kind of mineral binder, non-sulfide ore, especially a typical inhibitor of silicate minerals. Sodium silicate is selected in the floating scheelite and playing two main functions: one is to make the silica gel modified by physical adsorption on mineral surface, two is the adsorption of SiO 3 2- , HSiO 3 - , OH - and H + on the surface of quartz and silicate minerals, which increases the electronegativity and hydrophilicity of the mineral surface. In scheelite flotation process, sodium silicate was inhibited in quartz, calcite and silicate, generally speaking, sodium silicate is selective when used in low dosage, but using too much will lose the selecti...