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2. 发明申请

WO0050649A3 METHOD AND APPARATUS FOR REMOVING UNDESIRABLE METALS FROM IRON-CONTAINING MATERIALS 审中-公开
标题翻译：从含铁材料中去除不可燃金属的方法和装置
公开(公告)号：WO0050649A3
公开(公告)日：2001-02-08
申请号：PCT/IB0000379
申请日：2000-02-23
申请人： HYLSA SA
发明人： SALINAS-FERNANDEZ MARIO A , GUERRA-REYES MARIA T , APARICIO-ARRANZ JOSE M , VILLARREAL-TREVINO JUAN A , PEDROZA-CONTRERAS MIGUEL ANGEL
IPC分类号： C21B13/00 , C21B13/04 , C22B1/24 , C22B5/12 , C22B7/02 , C22B19/30 , C22B1/20 , C22B1/216 , C22B1/22 , C22B13/02 , C22B17/02 , C22B19/00
CPC分类号： C22B1/2406 , C21B13/0046 , C21B13/04 , C22B5/12 , C22B7/02 , C22B19/30 , Y02P10/122 , Y02P10/136 , Y02P10/216
摘要： The present invention relates to a method and apparatus for separating undesired toxic metals, such as Zn, Pb and Cd, from iron-containing materials by: sintering a mixture of such materials (typically including EAF dust and mill scale) with carbonaceous particles to form sturdy sinter lumps; preheating such lumps in a non-reducing atmosphere, if needed, to achieve an elevated temperature generally above the vaporization temperature of the undesired metals, but below the sticking temperature of said iron-containing lumps (which is typically below the vaporization temperatures of such undesired metals in their oxide form), feeding the lumps at such elevated temperature into a reduction reactor; flowing hot reducing gas through said lumps to volatilize said undesired reduced metals and carry the volatilized metals out of said reduction reactor leaving the iron-containing lumps largely stripped of the undesired metals and ready for discharge and safe and/or useful disposal or re-use, and finally cooling the off gas from the reactor to separate out the resulting solidified unwanted metals (typically in their oxide form resulting from a water quench cooling).
摘要翻译：本发明涉及通过以下方法从铁含量分离不需要的有毒金属如Zn，Pb和Cd的方法和装置：将这种材料（通常包括EAF粉尘和磨尺）的混合物与碳质颗粒烧结以形成坚固的烧结块; 如果需要，在非还原性气氛中预热这样的块，以达到通常高于不需要的金属的蒸发温度但低于所述含铁块的粘附温度的升高温度（其通常低于这种不希望的金属的汽化温度以其氧化物形式的金属），将这些升高的温度的块体送入还原反应器中; 流过热还原气体通过所述块状物以挥发所述不期望的还原金属并将挥发的金属从所述还原反应器中排出，留下含铁块大部分剥离不需要的金属并准备排出，并且安全和/或有用的处理或再利用，并最终冷却来自反应器的废气以分离所得到的固化的不需要的金属（通常以由水淬火冷却得到的氧化物形式）。

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