Title:
METAL CHROME FABRICATION METHOD
Document Type and Number:
WIPO Patent Application WO/2013/187348
Kind Code:
A1
Abstract:
Provided is a metal chrome fabrication method in which the chrome recovery yield can be increased and the iron content and P content of the metal chrome that is fabricated as a product can be reduced. This metal chrome fabrication method is provided with the following: a step (S1) in which chromium oxide, aluminum, and lime are put into an electric furnace as raw materials; a step (S1) in which electricity is supplied to the electric furnace, the raw materials are melted, and the chromium oxide is reduced by the aluminum to produce a first metal containing chrome and a first slag, a step (S2) in which the first slag is tapped from the electric furnace, a step (S3) in which a base flux is added to the first metal in an electric furnace, and a step (S4) in which electricity is supplied to the electric furnace, the base flux is melted, and the aluminum remaining in the first metal is oxidized and removed to produce a second metal.
Inventors:
SUGIMORI HIROICHI (JP)
ASADA HIROKI (JP)
FUJITA YUKIHIRO (JP)
ASADA HIROKI (JP)
FUJITA YUKIHIRO (JP)
Application Number:
PCT/JP2013/065927
Publication Date:
December 19, 2013
Filing Date:
June 10, 2013
Export Citation:
Assignee:
JFE MATERIAL CO LTD (JP)
International Classes:
C22B34/32; C22B5/04; C22B9/10; C22C1/02; C22C27/06
Foreign References:
| JP2001323329A | 2001-11-22 | |||
| JPS6280236A | 1987-04-13 | |||
| JP2001316712A | 2001-11-16 | |||
| JPS52123313A | 1977-10-17 |
Attorney, Agent or Firm:
SHIOJIMA, Toshiyuki (JP)
Toshiyuki Shiojima (JP)
Toshiyuki Shiojima (JP)
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