gravity separation this process also characterised by simple reagents ...The grade of crystalline graphite ore in China varies greatly. The ore grade of most deposits is 3-15% coarse crushing technical staff of Xinhai made the conclusion that the graphite had great wash ability usually including three stages of crushing and flotation. The specific process is as follows: 1. Graphite ore crushing stage The crushing stage of graphite ore usually adopts a two-stage closed-circuit crushing method.The process of graphite beneficiation is mainly: crushing-grinding-separation-middling treatment-tailings treatment. 1. Crushing The hardness of graphite ore is generally medium-hard or medium-hard to soft. The grade of the raw ore is between 2-10%
