Optimization of the performance of the hydrodynamic parameters on the flotation performance of coarse coal particles using design expert (DX8) software

- The effects of some key hydrodynamic factors on coarse coal particles were investigated using DX8 software.
- For the first time, the effect of impeller off-bottom clearance on the flotation was investigated.
- Impeller rotational speed showed the optimum efficiency on the flotation of coarse coal flotation.