Based on the definition of floatation,a concept of sinking separation was put forward according to the existence of the sinking of the aggregation of floatation agents and dispersed solids.

• 根据浮选定义,考虑到浮选剂-浮选质集合体的表观密度比连续相的密度大,集合体就会发生向下运动,从而实现分离,提出了“沉选”这一名词;