GB827162A - Process for the production of ferromanganese products from managanese-bearing materials - Google Patents
Process for the production of ferromanganese products from managanese-bearing materialsInfo
- Publication number
- GB827162A GB827162A GB2120856A GB2120856A GB827162A GB 827162 A GB827162 A GB 827162A GB 2120856 A GB2120856 A GB 2120856A GB 2120856 A GB2120856 A GB 2120856A GB 827162 A GB827162 A GB 827162A
- Authority
- GB
- United Kingdom
- Prior art keywords
- furnace
- slag
- ferromanganese
- phosphorus
- charge
- 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.)
- Expired
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B11/00—Making pig-iron other than in blast furnaces
- C21B11/10—Making pig-iron other than in blast furnaces in electric furnaces
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
- C21C7/00—Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/10—Reduction of greenhouse gas [GHG] emissions
- Y02P10/134—Reduction of greenhouse gas [GHG] emissions by avoiding CO2, e.g. using hydrogen
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Manufacturing & Machinery (AREA)
- Refinement Of Pig-Iron, Manufacture Of Cast Iron, And Steel Manufacture Other Than In Revolving Furnaces (AREA)
Abstract
Material low in manganese content and high in phosphorus and iron is calcined to form a substantially constant composition charge and is fed into a covered electric furnace on to the surface of a molten slag bath maintained therein, where it is subjected to the action of a relatively low-phosphorus content ferromanganese or ferromanganese-silicon alloy and added basic or acidic fluxing agent sufficient to produce a molten slag having a base (including manganous oxide) to acid ratio in the range of 0.8-1.5 to 1.0 on a molecular basis. The reaction takes place at a temperature in the range 1300-1500 DEG C. to produce a molten metallic iron product containing phosphorus and other impurities present in the original charge and a low-phosphorus, manganese-enriched slag, the latter being passed to a second covered electric furnace on to the surface of a molten slag and subjected to the action of a reducing agent and added fluxing material at a temperature in the range 1300-1500 DEG C. to produce a ferromanganese alloy. Iron may be added to the charge in the first furnace to provide sufficient metal product to function as a collector for the phosphorus. The metal and slag may be passed to a holding furnace to effect a more complete separation. In the operation of both furnaces the control of temperature is effected by maintaining the arcing tips of the electrodes within the range from 1/2 inch above the upper slag surface to 3 inches below it, by controlling the depth of slag in the furnace and by feeding the charge at such a rate and in such a way as to avoid submergence of the arcing tips in the raw charge material. The reducing agent in the second furnace may be carbonaceous or non-carbonaceous depending on the carbon content required in the product. A ferromanganese-silicon may be produced in this furnace which may be returned to the furnace for use as the reducing agent or used with manganese-containing slag from the first stage to produce a required ferromanganese product in a third operation. Specifications 762,469 and 827,161 are referred to.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US827162XA | 1955-07-22 | 1955-07-22 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB827162A true GB827162A (en) | 1960-02-03 |
Family
ID=22172972
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2120856A Expired GB827162A (en) | 1955-07-22 | 1956-07-09 | Process for the production of ferromanganese products from managanese-bearing materials |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB827162A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1508109B1 (en) * | 1965-05-04 | 1970-02-26 | African Metals Corp Ltd | Process for the production of ferromanganese with up to 1.5% silicon and up to 3% carbon |
-
1956
- 1956-07-09 GB GB2120856A patent/GB827162A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1508109B1 (en) * | 1965-05-04 | 1970-02-26 | African Metals Corp Ltd | Process for the production of ferromanganese with up to 1.5% silicon and up to 3% carbon |
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