The flotation of gold minerals generally adopts the “grinding + flotation” process, and the staged grinding and flotation process can be adopted for ores with uneven particle size.
Gold ore grinding fineness requirements. Generally speaking, for gold wrapped in sulfide minerals, only sulfide monomer dissociation is required, but for gold associated with gangue, the grinding fineness needs to reach gold monomer dissociation. At the same time, the grinding fineness of a mineral is determined by test.
The principle of gold flotation is: Flotation of minerals with high density and coarse particle size often uses thicker pulp; On the contrary, when flotation of small density, fine particle size and slime, the thinner pulp is used, and the thicker pulp is used for roughing, which can ensure a higher recovery rate. The thinner concentration is used for cleaning, which is beneficial to improve the quality of the concentrate.