发明名称 LEAD SLAG REDUCTION
摘要 A process for lead slag reduction subjects the slag to top-submerged lance injection of oxygen containing gas and fuel, via a vertically suspended lance having its lower tip end submerged in the slag. The injection generates a combustion zone in the slag in which fuel is combusted and generates turbulent conditions forming a slag coating on the lower extent of the lance which is solidified by the cooling effect of the injected gas. The injection is conducted under reducing conditions, using a sulphidic material as a reductant, to reduce lead in the slag to metallic lead and thereby form a molten lead phase which is able to be tapped as lead bullion.
申请公布号 WO2008014538(A1) 申请公布日期 2008.02.07
申请号 WO2007AU01053 申请日期 2007.07.30
申请人 AUSMELT LIMITED;LIGHTFOOT, BRIAN, WILLIAM;MATUSEWICZ, ROBERT, WALTER 发明人 LIGHTFOOT, BRIAN, WILLIAM;MATUSEWICZ, ROBERT, WALTER
分类号 C22B7/04;C22B5/08;C22B13/02 主分类号 C22B7/04
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