GB454165A - Improvements in and relating to processes for the production of ferro-manganese - Google Patents
Improvements in and relating to processes for the production of ferro-manganeseInfo
- Publication number
- GB454165A GB454165A GB9725/35A GB972535A GB454165A GB 454165 A GB454165 A GB 454165A GB 9725/35 A GB9725/35 A GB 9725/35A GB 972535 A GB972535 A GB 972535A GB 454165 A GB454165 A GB 454165A
- Authority
- GB
- United Kingdom
- Prior art keywords
- manganese
- iron
- per cent
- reduced
- ferro
- 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
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
Manganese ores or slags containing too large a proportion of iron to permit of being worked up to ferro-manganese in one stage are melted, after the addition if necessary of fluxes, e.g. limestone, fluorspar, or sand, to form a neutral or slightly acid and low-melting manganous oxide slag, and so much iron is reduced, as by means of charcoal, at a temperature below the reduction temperature of the manganese, as to form an intermediate product possessing an iron-manganese ratio required for producing the ferro-manganese desired. The basicity of this product is then increased by the addition of lime and on increase of temperature it is reduced to ferro-manganese. The two stages may be effected in one or separate furnaces. The iron reduced from the manganous oxide slag may be continuously or intermittently removed. In an example an ore containing 31,1 per cent of iron and 17,8 per cent of manganese are melted with a flux and by the addition of reducing charcoal so much iron is reduced at 1300-1400 DEG C. as to leave a manganous oxide slag containing 5,2 per cent of iron and 25,9 per cent of manganese. Lime and reducing charcoal are added to this slag which is reduced at about 1600 DEG C. to ferromanganese containing 11,4 per cent of iron and 79,1 per cent of manganese.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE454165X | 1934-07-23 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB454165A true GB454165A (en) | 1936-09-25 |
Family
ID=6538877
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB9725/35A Expired GB454165A (en) | 1934-07-23 | 1935-03-28 | Improvements in and relating to processes for the production of ferro-manganese |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB454165A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2634204A (en) * | 1951-01-25 | 1953-04-07 | Sylvester & Company | Recovery of manganese |
-
1935
- 1935-03-28 GB GB9725/35A patent/GB454165A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2634204A (en) * | 1951-01-25 | 1953-04-07 | Sylvester & Company | Recovery of manganese |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
GB454165A (en) | Improvements in and relating to processes for the production of ferro-manganese | |
GB1025230A (en) | Improvements in the production of alloy steel | |
GB598600A (en) | Improvements in or relating to the de-ironing and reduction of chromium or manganeseores | |
US2128615A (en) | Process for the production of ferromanganese | |
GB1003724A (en) | Consumable electrode production of metal ingots | |
US2127074A (en) | Improving chrome ores | |
US1927240A (en) | Process for metallurgical concentration of raw material | |
US1825463A (en) | Method of reclaiming stainless steel scrap | |
US1979753A (en) | Open-hearth slag utilization | |
GB513915A (en) | Improvements in and relating to the production of carbon-poor chromium iron alloys | |
US4101316A (en) | Conversion of molybdenite concentrate to ferro-molybdenum and simultaneous removal of impurities by direct reduction with sulfide forming reducing agents | |
US2135466A (en) | Treatment of titanium bearing iron ores or spongy iron obtained therefrom | |
SU56105A1 (en) | Method of extracting vanadium from thomas cast iron | |
US1428057A (en) | Production of low-carbon ferro alloys | |
DE633254C (en) | Process for producing ferromanganese in a blast furnace | |
GB174923A (en) | Improvements in process for the manufacture of manganese or of manganese alloys poorin carbon and silicon | |
US2162437A (en) | Method of making steel | |
SU77328A1 (en) | The method of producing manganese, ferromanganese and other alloys containing manganese | |
US1833125A (en) | Smelting process for eliminating phosphorus | |
GB514428A (en) | Improvements in or relating to the manufacture of steel | |
DE920967C (en) | Process for the production of ferromanganese | |
GB467378A (en) | Improvements in or relating to a process for the manufacture of basic steel | |
GB451263A (en) | Process for the deoxidation of ferrous metals with cyclic utilisation and regeneration of slags | |
GB437008A (en) | Improvements in the treatment of chrome-iron ores | |
GB656396A (en) | Improvements in and relating to the refining of oxidised steels and the manufacture of alloy steels |