The coarser is the particle size,the higher is the settling velocity in the froth layers above the critical particle size,and vice versa.

• 在临界粒度以上,颗粒粒度越粗,沉降速度越快,反之亦然。对于细粒方铅矿和黄铁矿,疏水性越强,沉降速度越慢。