phosphate particles to the collector. The higher collector dosage at
lowsodium silicatecompensate for excess consumption of collector
by slimes whichincrease phosphate recovery as expected.However,
separation efficiency, concentrate grade results indicate that even
though higher sodium silicate dosage increases the recovery it also
increases the recovery of gangue (silica) to the concentrate. This
may be explained by the increase of fine silica particles dispersed
by sodium silicate entrainment to the concentrate