公开(公告)号：US20150292055A1

公开(公告)日：2015-10-15

申请号：US14438303

申请日：2013-10-21

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

Inventor： Takashi Tsushima ,  Shorin O ,  Shingo Yoshida ,  Masataka Tateishi

IPC: C22B1/16 ,  C22B7/02 ,  C21B13/00 ,  C22B5/10

CPC classification number: C22B1/16 ,  C21B13/00 ,  C21B13/0046 ,  C21B13/006 ,  C21B13/008 ,  C22B1/14 ,  C22B1/245 ,  C22B5/10 ,  C22B7/02 ,  Y02P10/212

Abstract: Provided is a process for manufacturing reduced iron by heating agglomerates, said process being capable of enhancing the yield of reduced iron and thus improving the productivity thereof. A process for manufacturing reduced iron which includes a step for agglomerating a mixture that comprises an iron oxide source, a carbonaceous reducing agent and a melting point regulator and a step for heating the obtained agglomerates to reduce the iron oxide contained in the agglomerates, wherein the agglomerates contain at least 1 mass % of a silicate mineral having a solidus temperature of 1300° C. or lower.

Abstract translation: 提供通过加热附聚物制造还原铁的方法，所述方法能够提高还原铁的产率，从而提高其生产率。 一种制造还原铁的方法，其包括用于使包含氧化铁源，碳质还原剂和熔点调节剂的混合物附聚的步骤和用于加热所得附聚物以减少附聚物中所含的氧化铁的步骤，其中 附聚物含有至少1质量％的固相线温度为1300℃以下的硅酸盐矿物。