lime is ball mill gold mines

When a certain amount of lime is present in the slurry, Ca2+ reacts with CO2 in the air entering the slurry to form a CaCO3 precipitate, which inhibits theflotationof naturalgoldparticles. The addition of lime in theflotationoperation is usually carried out by adding the lime powder to the ore belt of the ball mill or adding lime milk or lime powder to the stirring tank before theflotation.