RECOVERING METHOD FOR METAL FROM DEPHOSPHORIZATION SLAG

PURPOSE:To recover by separation a high-quality metal efficiently with superior workability by throwing crushed lime-type dephosphorization slag into water, slaking CaO in the slag, pulverizing the slaked CaO and then allowing a metal to be attracted by a magnet. CONSTITUTION:Dephosphorization of molten iron is carried out by the use of a lime-type flux. The resulting dephosphorization slag is crushed and, if necessary, the metal in the above crushed slag is attracted by a magnet and recovered by separation and then the resulting crushed slag is thrown into water and agitated, by which CaO in the above slag is slaked and the slag is pulverized. Subsequently, the metal in the pulverized slag is attracted by the magnet and recovered by separation. Moreover, it is preferable that the metal magnetically separated from the above crushed slag is thrown into water and agitated to pulverize the sticking slag and the pulverized slag is further subjected to magnetic separation so as to recover the metal therein perfectly.