发明名称 Method of reduction processing of steel-making slag
摘要 The method of reduction processing of steel-making slag, includes: a hot steel-making slag inflow process of continuously or intermittently charging, from a slag supplying container, hot steel-making slag to a molten slag layer on a molten iron contained in an electric furnace while adjusting an amount of inflow with the slag supplying container; a reducing agent supplying process of supplying a reducing agent to the molten slag layer; an electrifying and heating process of heating the molten iron and the molten slag layer through application of electric power; and a reduction process of continuing reduction processing of the hot steel-making slag in a non-oxidizing atmosphere while intermittently discharging either one or both of the molten iron or molten slag of the molten slag layer.
申请公布号 US9217185(B2) 申请公布日期 2015.12.22
申请号 US201314352529 申请日期 2013.06.27
申请人 NIPPON STEEL & SUMITOMO METAL CORPORATION 发明人 Harada Toshiya;Arai Takashi;Hirata Hiroshi
分类号 C21C5/52;C21C7/00;C04B5/06;F27D15/00;F27D3/14;F27B3/18;F27B19/04 主分类号 C21C5/52
代理机构 Birch, Stewart, Kolasch & Birch, LLP 代理人 Birch, Stewart, Kolasch & Birch, LLP
主权项 1. A method of reduction processing of steel-making slag, including: a hot steel-making slag inflow process of continuously or intermittently charging, from a slag supplying container, hot steel-making slag to a molten slag layer on a molten iron contained in an electric furnace while adjusting an amount of inflow with the slag supplying container; a reducing agent supplying process of supplying a reducing agent to the molten slag layer; an electrifying and heating process of heating the molten iron and the molten slag layer through application of electric power; and a reduction process of continuing reduction processing of the hot steel-making slag in a non-oxidizing atmosphere while intermittently discharging the molten slag of the molten slag layer or the molten iron.
地址 Tokyo JP