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 |