公开(公告)号：US20040221426A1

公开(公告)日：2004-11-11

申请号：US10778344

申请日：2004-02-17

申请人： Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.)

发明人： Yasuhiko Igawa ,  Jun Jimbo ,  Hidetoshi Tanaka ,  Shoichi Kikuchi ,  Takao Harada ,  Osamu Tsuchiya ,  Shuzo Ito ,  Isao Kobayashi

IPC分类号： B01J002/00

CPC分类号： C05D9/02 ,  C05G3/0047 ,  C21B13/0046 ,  C21B13/105 ,  C22B1/2406 ,  C22B1/243 ,  C22B1/244 ,  C22B1/245 ,  C22B13/10 ,  Y02P10/212

摘要： A method for producing an iron oxide pellet including the steps of adding water to a raw material mixture comprising iron oxide which serves as a primary component, a carbonaceous material in an amount sufficient for reducing the iron oxide, an organic binder in an amount sufficient for binding the iron oxide and the carbonaceous material, and an inorganic coagulant in an amount of not less than 0.05 mass % and less than 1 mass %; pelletizing the resultant mixture to thereby obtain a green pellet; and drying the green pellet until the moisture content is reduced to equal to or less than 1.0 mass %. The thus-produced iron oxide pellet is charged in a reducing furnace for reduction to thereby obtain a reduced iron pellet.

摘要翻译： 一种氧化铁颗粒的制造方法，其特征在于，包括以下步骤：将水作为主要组分的含有氧化铁的原料混合物，足以还原氧化铁的碳质材料， 结合铁氧化物和碳质材料，无机凝结剂的量不小于0.05质量％且小于1质量％; 将所得混合物造粒，得到生球团块; 并干燥绿色颗粒，直到含水量降低至1.0质量％以下。 将由此生产的氧化铁颗粒装入还原炉中进行还原，从而获得还原铁颗粒。