| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a method for efficiently separating and recovering metal iron present in clinker. <P>SOLUTION: In the metal iron recovery method for separating and recovering metal iron in by-product clinker after recovery of zinc etc. from electric furnace dust, the clinker is pulverized and the resultant clinker powder is subjected to gravity separation to undergo separation into heavy clinker power and light clinker powder. Subsequently, the heavy clinker powder is subjected to magnetic separation to undergo separation into magnetized clinker capable of being attracted to a magnet and non-magnetized clinker free from attraction to the magnet, and then the magnetized clinker powder is recovered. <P>COPYRIGHT: (C)2008,JPO&INPIT</p> |
