Effect of sodium silicate on the flotation of calcite, scheelite and fluorite by sodium oleate in the Hallimond tube was examined. Sodium silicate used are three kinds: the molar ratio of SiO_2 to Na_2O is 1:1, 2:1 and 3:1 respectively.
The higher th...
Effect of sodium silicate on the flotation of calcite, scheelite and fluorite by sodium oleate in the Hallimond tube was examined. Sodium silicate used are three kinds: the molar ratio of SiO_2 to Na_2O is 1:1, 2:1 and 3:1 respectively.
The higher the modar ratio of sodium silicate, the stronger the depression of the minerals, indicating that the depressing action is due to SiO(OH)_3^- ion evolved from the sodium silicate.