After the using which features that it pulverizes the refractory

摘要

PROBLEM TO BE SOLVED: To provide a method for recycling a raw material from a used refractory, capable of recovering a high-purity raw material from a used refractory. ;SOLUTION: This method for recycling a raw material from a used refractory comprises coarsely grinding the used refractory, applying frictional force, pressing force and/or impact force to the ground particles and recovering the original raw material part so as to reuse a refractory raw material. Preferably, the refractory raw material is marked so as to distinguish the qualities of the refractory before use. Preferably, the used refractory contains carbon.;COPYRIGHT: (C)1997,JPO