Title:
製鋼スラグ還元処理方法
Document Type and Number:
Japanese Patent JP5522320
Kind Code:
B1
Abstract:
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.
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Inventors:
Toshiya Harada
Takashi Arai
Hiroshi Hirata
Takashi Arai
Hiroshi Hirata
Application Number:
JP2013547433A
Publication Date:
June 18, 2014
Filing Date:
June 27, 2013
Export Citation:
Assignee:
Nippon Steel & Sumitomo Metal Corporation
International Classes:
C21C5/28; C04B5/06; C22B7/04; F27D15/00
Domestic Patent References:
| JP2006528732A | 2006-12-21 | |||
| JP2002069526A | 2002-03-08 | |||
| JP2002069520A | 2002-03-08 | |||
| JPS57177911A | 1982-11-01 | |||
| JPS5233897A | 1977-03-15 |
Attorney, Agent or Firm:
Masatake Shiga
Tadashi Takahashi
Sumio Tanai
Hiroshi Masui
Tomoo Katsumata
Tadashi Takahashi
Sumio Tanai
Hiroshi Masui
Tomoo Katsumata