JPS54158313A - Chromium removing method for chromium-containing slag - Google Patents
Chromium removing method for chromium-containing slagInfo
- Publication number
- JPS54158313A JPS54158313A JP6694078A JP6694078A JPS54158313A JP S54158313 A JPS54158313 A JP S54158313A JP 6694078 A JP6694078 A JP 6694078A JP 6694078 A JP6694078 A JP 6694078A JP S54158313 A JPS54158313 A JP S54158313A
- Authority
- JP
- Japan
- Prior art keywords
- slag
- molten
- metal
- chromium
- content
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Manufacture And Refinement Of Metals (AREA)
Abstract
PURPOSE: To reduction-recover Cr2O3, in molten metal of low Cr content, contained in Cr2O3-rich molten slag by separating the slag formed in refining of high Cr molten steel and by reacting the slag with the metal.
CONSTITUTION: Cr ore, an iron material reducing agent and a slag making agent are mixed and melt-reduced in an electric furnace to manufacture high Cr molten steel contg. Cr>10%, or high carbon ferrochromium is oxidation-decarburized to lower the Cr content. At this time, Cr2O3-rich molten slag is formed. This slag is separated from the molten steel and reacted with molten metal of low Cr content satisfying the following equation: 21[Cr%]-46[Si%]-3[C%]≤18. In the equation Cr%, Si% and C% are the concn. of each component in the molten metal. The Cr2O3 in the molten slag is reduced with Si and C in the molten metal and recovered in the metal.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6694078A JPS54158313A (en) | 1978-06-03 | 1978-06-03 | Chromium removing method for chromium-containing slag |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6694078A JPS54158313A (en) | 1978-06-03 | 1978-06-03 | Chromium removing method for chromium-containing slag |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS54158313A true JPS54158313A (en) | 1979-12-14 |
Family
ID=13330498
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP6694078A Pending JPS54158313A (en) | 1978-06-03 | 1978-06-03 | Chromium removing method for chromium-containing slag |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS54158313A (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61272346A (en) * | 1985-05-29 | 1986-12-02 | Nippon Steel Corp | Melting-reducing refining method for high manganese ferrous alloy |
JP2003502504A (en) * | 1999-06-23 | 2003-01-21 | エスエムエス・デマーク・アクチエンゲゼルシャフト | Method for recovering chromium metal from slag containing chromium oxide |
US6855189B2 (en) | 2000-01-28 | 2005-02-15 | Holcim Ltd. | Method for removing chrome and/or nickel from liquid slags |
WO2011045755A1 (en) * | 2009-10-13 | 2011-04-21 | Petrus Hendrik Ferreira Bouwer | Ferrochrome alloy production |
CN104087709A (en) * | 2014-07-18 | 2014-10-08 | 承德建龙特殊钢有限公司 | Method for smelting and reducing high-chromium slag in induction furnace |
-
1978
- 1978-06-03 JP JP6694078A patent/JPS54158313A/en active Pending
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61272346A (en) * | 1985-05-29 | 1986-12-02 | Nippon Steel Corp | Melting-reducing refining method for high manganese ferrous alloy |
JP2003502504A (en) * | 1999-06-23 | 2003-01-21 | エスエムエス・デマーク・アクチエンゲゼルシャフト | Method for recovering chromium metal from slag containing chromium oxide |
US6855189B2 (en) | 2000-01-28 | 2005-02-15 | Holcim Ltd. | Method for removing chrome and/or nickel from liquid slags |
WO2011045755A1 (en) * | 2009-10-13 | 2011-04-21 | Petrus Hendrik Ferreira Bouwer | Ferrochrome alloy production |
CN104087709A (en) * | 2014-07-18 | 2014-10-08 | 承德建龙特殊钢有限公司 | Method for smelting and reducing high-chromium slag in induction furnace |
CN104087709B (en) * | 2014-07-18 | 2016-08-24 | 承德建龙特殊钢有限公司 | A kind of method of melting and reducing height chromium slag in induction furnace |
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