METHOD OF PROCESSING WASTE REFRACTORY BRICK FROM COPPER SMELTING FURNACE

摘要

PPROBLEM TO BE SOLVED: To provide a method of efficiently disposing, when recovering copper from waste refractory bricks used in a smelting furnace, the waste refractory bricks at a low cost while obviating the necessity of special equipment, such as an autoclave, and preventing the occurrence of biting to a crushing machine such as a crusher. PSOLUTION: The waste refractory bricks are crushed to 50 to 200 mm maximum diameter to separate or expose copper metal impregnated into the inner part, and the copper metal and the resultant crushed matter containing the copper metal are recovered by picking and fed into a converter to undergo recovery of copper. The remaining crushed waste refractory bricks are fed to a slag beneficiation step to undergo further recovery of copper. Moreover, the whole of the crushed waste refractory bricks is fed into the converter to undergo recovery of copper, and then an unmelted portion of the crushed waste refractory bricks in the converter is fed together with converter slag to the slag beneficiation step to undergo further recovery of copper. PCOPYRIGHT: (C)2005,JPO&NCIPI