| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a method for obtaining excellent copper refining slag exhibiting less elution of arsenic, cadmium, lead or the like. <P>SOLUTION: In a treating method for the copper refining slag capable of obtaining a slag particle having less elution of arsenic, an inorganic flocculating agent and an organic flocculating agent are added to a circulating granulation water and pH is adjusted to 5-10 at a step of water-granulating and granulating the copper refining slag, and suspended matter is removed at a sedimentation tank, then the water is reused as the granulation water. <P>COPYRIGHT: (C)2007,JPO&INPIT</p> |
