The best quality graphite product is coarse-grained (larger than 300 μm) and has 98% carbon or higher. It is considered that graphite mineral is easy to float. However, the treatment flow sheets can be relatively complex and depends on the type of ore to be treated. The conventional technology for upgrading graphite ore involves milling followed by flotation, regrinding, and multiple cleaning. In spite of that, graphite floats easily with the middling particles adhering to the graphite flakes are reported to the concentrate. Regrinding of the concentrate also breaks coarse particles of graphite, which represent a problem of producing coarse high-grade graphite.