公开(公告)号：US20060213323A1

公开(公告)日：2006-09-28

申请号：US10548440

申请日：2004-03-11

申请人： Koji Yamada ,  Kenichi Tayama ,  Nobuyasu Ezawa ,  Hiroshi Inoue ,  Masahiko Ogino ,  Kazuma Takadate

发明人： Koji Yamada ,  Kenichi Tayama ,  Nobuyasu Ezawa ,  Hiroshi Inoue ,  Masahiko Ogino ,  Kazuma Takadate

IPC分类号： C22B11/00 ,  C22B4/04

CPC分类号： C22B5/10 ,  C22B4/00 ,  C22B11/023 ,  C22B11/026 ,  C22B15/0054 ,  C22B15/0058 ,  Y02P10/214 ,  Y02P10/22

摘要： A method for recovering platinum group elements comprises charging an oxide raw material entraining platinum group elements, copper oxide, solid carbonaceous reducing agent and flux into a closed electric furnace equipped with at least one electrode for heating material and a roof for substantially shielding material charged into the furnace from the exterior atmosphere. The charged material is melted and reduced to form a layer of molten metal under a molten slag layer and enrich platinum group elements in this molten metal. The oxide raw material, copper oxide, solid carbonaceous reducing agent and flux are prepared as powdery or particulate materials, premixed and then charged into the electric furnace. The heat-melted material in the furnace is allowed to stand at a temperature of 1200° to 1500° C. for at least 5 hours, with the molten metal containing platinum group elements then being discharged outside the furnace.

摘要翻译： 用于回收铂族元素的方法包括将装有铂族元素的氧化物原料，氧化铜，固体碳质还原剂和助熔剂装入装有至少一个用于加热材料的电极的封闭式电炉中， 炉从外部气氛。 将带电材料熔化并还原以在熔融熔渣层下形成一层熔融金属，并富集该熔融金属中的铂族元素。 制备氧化物原料，氧化铜，固体碳质还原剂和助熔剂作为粉末或颗粒材料，预混合，然后装入电炉中。 使炉中的热熔材料在1200℃至1500℃的温度下放置至少5小时，然后将含有铂族元素的熔融金属排出炉外。