JPS6452013A - Production of low carbon ferro-chromium - Google Patents
Production of low carbon ferro-chromiumInfo
- Publication number
- JPS6452013A JPS6452013A JP20712787A JP20712787A JPS6452013A JP S6452013 A JPS6452013 A JP S6452013A JP 20712787 A JP20712787 A JP 20712787A JP 20712787 A JP20712787 A JP 20712787A JP S6452013 A JPS6452013 A JP S6452013A
- Authority
- JP
- Japan
- Prior art keywords
- molten slag
- chromium
- low carbon
- carbon ferro
- lime
- 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.)
- Granted
Links
Landscapes
- Manufacture Of Iron (AREA)
Abstract
PURPOSE:To produce a low carbon ferro-chromium having good quality at good thermal efficiency by melting chromium ore and lime in a stationary electric furnace by conducting electric power through electrodes and reacting primary slag tapped on the way of smelting and Si-Cr while always covering surface of the primary molten slag with non-melting raw material. CONSTITUTION:The Cr ore and lime are charged into the stationary type electric furnace 1 from a raw material chute 6 and melted by conducting the power through the graphite electrodes 13 to generate the molten slag 7 having Cr2O3, FeO, CaO as main composition. In this case, the surface of the molten slag 7 is always covered with mixing material 6 of the Cr ore and the lime for the raw material, to prevent heat radiation from the surface of the molten slag 7 and also to prevent Cr2O3 and FeO from becoming further high order oxides. In case quantity of the molten slag 7 increases, the tapping hole 3 is opened and the molten metal is flowed into a ladle 8 to produce the low carbon ferro-chromium by adding the Si-Cr. In this case, by holding the ratio of the quantity of the molten slag 4 remaining at furnace bottom part 2 below the tapping hole 3 and the tapped quantity into the ladle 8 to the range of 0.5-4.0, the low carbon ferro-chromium is stably and continuously produced.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20712787A JPS6452013A (en) | 1987-08-20 | 1987-08-20 | Production of low carbon ferro-chromium |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20712787A JPS6452013A (en) | 1987-08-20 | 1987-08-20 | Production of low carbon ferro-chromium |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6452013A true JPS6452013A (en) | 1989-02-28 |
| JPH0437125B2 JPH0437125B2 (en) | 1992-06-18 |
Family
ID=16534644
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP20712787A Granted JPS6452013A (en) | 1987-08-20 | 1987-08-20 | Production of low carbon ferro-chromium |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6452013A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2015175043A (en) * | 2014-03-17 | 2015-10-05 | Ｊｆｅマテリアル株式会社 | Manufacturing method of silicochromium and manufacturing method of ferrochromium |
| WO2021045174A1 (en) * | 2019-09-06 | 2021-03-11 | Ｊｆｅマテリアル株式会社 | Method for producing low-carbon ferrochromium |
| WO2021045173A1 (en) * | 2019-09-06 | 2021-03-11 | Ｊｆｅマテリアル株式会社 | Self-baking electrode and electrode paste for self-baking electrode |
| WO2021241538A1 (en) * | 2020-05-29 | 2021-12-02 | Ｊｆｅマテリアル株式会社 | Operation method of stationary electric furnace |
-
1987
- 1987-08-20 JP JP20712787A patent/JPS6452013A/en active Granted
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2015175043A (en) * | 2014-03-17 | 2015-10-05 | Ｊｆｅマテリアル株式会社 | Manufacturing method of silicochromium and manufacturing method of ferrochromium |
| WO2021045174A1 (en) * | 2019-09-06 | 2021-03-11 | Ｊｆｅマテリアル株式会社 | Method for producing low-carbon ferrochromium |
| WO2021045173A1 (en) * | 2019-09-06 | 2021-03-11 | Ｊｆｅマテリアル株式会社 | Self-baking electrode and electrode paste for self-baking electrode |
| JPWO2021045173A1 (en) * | 2019-09-06 | 2021-10-21 | Ｊｆｅマテリアル株式会社 | Self-firing electrode and electrode paste for self-firing electrode |
| JPWO2021045174A1 (en) * | 2019-09-06 | 2021-11-18 | Ｊｆｅマテリアル株式会社 | Manufacturing method of low carbon ferrochrome |
| WO2021241538A1 (en) * | 2020-05-29 | 2021-12-02 | Ｊｆｅマテリアル株式会社 | Operation method of stationary electric furnace |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0437125B2 (en) | 1992-06-18 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4089677A (en) | Metal refining method and apparatus | |
| US6685761B1 (en) | Method for producing beneficiated titanium oxides | |
| EP1073773B1 (en) | An improved process for making steel | |
| US5654976A (en) | Method for melting ferrous scrap metal and chromite in a submerged arc furnace to produce a chromium containing iron | |
| AU575145B2 (en) | Induction furnace with discardable lining | |
| GB1188715A (en) | Melting Metallic Scrap | |
| GB1467948A (en) | Continuous production of steel | |
| JPS6452013A (en) | Production of low carbon ferro-chromium | |
| CA1043575A (en) | Method and device for melting metals | |
| CN1071703A (en) | High-effective foam slag submerged-arc steel melting method of electric arc furnace | |
| JPH04107206A (en) | Production process of chromium-incorporated molten steel | |
| JPS57198205A (en) | Production of molten metal from powder and granular ore | |
| SE8601450D0 (en) | METHOD FOR PRODUCING FERRO-ALLOYS | |
| Meraikib | Effects of sponge iron on the electric arc furnace operation | |
| CA1199498A (en) | Production and treatment of ferrochromium | |
| NL2034821B1 (en) | Novel process for the smelting of a blend of hot and cold metalliferous feedstock material yielding reduced carbon emissions | |
| Brun | DEVELOPMENT OF REFRACTORY LININGS FOR ELECTRIC REDUCTION FURNACES PRODUCING MN ALLOYS AT ELKEM A/S, PEA PLANT IN PORSGRUNN, NORWAY | |
| US2109122A (en) | Making ferrochromium | |
| SU1008250A1 (en) | Method for smelting steel in electric arc furnaces | |
| SU1157107A1 (en) | Method of melting carbon ferromanganese from poor ores | |
| Dachlan et al. | Utilisation of DRI in Iron & Steelmaking | |
| JPH06287621A (en) | Melting process for iron scrap with low consumption of energy | |
| JPS62167808A (en) | Production of molten chromium iron | |
| SU1235922A1 (en) | Method of melting steel and alloys | |
| JPS5579817A (en) | Refining method for stainless steel using semi-reduced chromium pellet |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |