GB937507A - Process for the production of iron-chromium alloys - Google Patents
Process for the production of iron-chromium alloysInfo
- Publication number
- GB937507A GB937507A GB41834/60A GB4183460A GB937507A GB 937507 A GB937507 A GB 937507A GB 41834/60 A GB41834/60 A GB 41834/60A GB 4183460 A GB4183460 A GB 4183460A GB 937507 A GB937507 A GB 937507A
- Authority
- GB
- United Kingdom
- Prior art keywords
- iron
- ferrochromium
- ore
- production
- chromium
- 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
- 238000000034 method Methods 0.000 title abstract 5
- 238000004519 manufacturing process Methods 0.000 title abstract 4
- 229910000599 Cr alloy Inorganic materials 0.000 title abstract 2
- 239000000788 chromium alloy Substances 0.000 title abstract 2
- UPHIPHFJVNKLMR-UHFFFAOYSA-N chromium iron Chemical compound [Cr].[Fe] UPHIPHFJVNKLMR-UHFFFAOYSA-N 0.000 title abstract 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract 10
- 229910052742 iron Inorganic materials 0.000 abstract 5
- 229910000604 Ferrochrome Inorganic materials 0.000 abstract 4
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 abstract 4
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 abstract 4
- 238000003723 Smelting Methods 0.000 abstract 3
- 229910052799 carbon Inorganic materials 0.000 abstract 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 abstract 2
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical group [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 abstract 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 abstract 2
- 238000001354 calcination Methods 0.000 abstract 2
- 239000003638 chemical reducing agent Substances 0.000 abstract 2
- 229910052804 chromium Chemical group 0.000 abstract 2
- 239000011651 chromium Chemical group 0.000 abstract 2
- 230000004048 modification Effects 0.000 abstract 2
- 238000012986 modification Methods 0.000 abstract 2
- 229910052759 nickel Inorganic materials 0.000 abstract 2
- 239000002893 slag Substances 0.000 abstract 2
- 229910000975 Carbon steel Inorganic materials 0.000 abstract 1
- WGLPBDUCMAPZCE-UHFFFAOYSA-N Trioxochromium Chemical compound O=[Cr](=O)=O WGLPBDUCMAPZCE-UHFFFAOYSA-N 0.000 abstract 1
- 229910045601 alloy Inorganic materials 0.000 abstract 1
- 239000000956 alloy Substances 0.000 abstract 1
- 238000005275 alloying Methods 0.000 abstract 1
- 239000010962 carbon steel Substances 0.000 abstract 1
- 229910000423 chromium oxide Inorganic materials 0.000 abstract 1
- 239000000470 constituent Substances 0.000 abstract 1
- 239000002994 raw material Substances 0.000 abstract 1
- 239000000377 silicon dioxide Substances 0.000 abstract 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B13/00—Making spongy iron or liquid steel, by direct processes
- C21B13/006—Starting from ores containing non ferrous metallic oxides
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C33/00—Making ferrous alloys
- C22C33/04—Making ferrous alloys by melting
- C22C33/06—Making ferrous alloys by melting using master alloys
-
- 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
- Y02P10/20—Recycling
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
Iron chromium alloys of controlled carbon content are obtained from ores of chromium oxide and iron oxide by a duplex process in which a part of the ore is completely reduced, preferably in an arc furnace, with carbonaceous reducing agent to yield a high carbon ferrochromium, while a further part is separately reduced using a restricted amount of carbonaceous reducing agent to produce low-carbon metallic iron and a chromium-bearing slag which is returned to the ferrochromium smelting stage. The ferrochromium and metallic iron are then mixed and refined, with the addition of other alloying constituents e.g. nickel if desired, to yield the required alloy. Prior to smelting the ore is calcined, e.g. in a rotary kiln, during which process partial reduction may be carried out; addition of fluxing components so that preferably the slags lie within the range 1.0-2.25 parts by weight of base (calculated as MgO and excluding iron oxide) to 1 part of silica is carried out either before or after calcining. In a modification of the process each smelting step may be preceded by its own calcining step the raw material for ferrochromium production being a chromium containing ore and that for the metallic iron production being an iron ore. In a further modification additional elements such as nickel may be added as oxide ores at the reduction stage. Any surplus metallic iron may be withdrawn from the process and used in the production of carbon steel. Specification 911,992 is referred to.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US85729359 US2986459A (en) | 1959-12-04 | 1959-12-04 | Metallurgical process |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB937507A true GB937507A (en) | 1963-09-25 |
Family
ID=25325660
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB41834/60A Expired GB937507A (en) | 1959-12-04 | 1960-12-05 | Process for the production of iron-chromium alloys |
Country Status (2)
| Country | Link |
|---|---|
| US (1) | US2986459A (en) |
| GB (1) | GB937507A (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3323907A (en) * | 1964-11-23 | 1967-06-06 | Air Prod & Chem | Production of chromium steels |
| US4490169A (en) * | 1980-07-21 | 1984-12-25 | Lectromelt Corporation | Method for reducing ore |
| FI64648C (en) * | 1981-01-23 | 1983-12-12 | Outokumpu Oy | FOERFARANDE FOER UTNYTTJANDE AV FATTIGA OXIDISKA OCH JAERNHALTIGA KOMPLEXMALMER ELLER -KONCENTRAT |
| PH22151A (en) * | 1983-12-31 | 1988-06-01 | Krupp Gmbh | Process for the production of ferrochromium |
| US4565574A (en) * | 1984-11-19 | 1986-01-21 | Nippon Steel Corporation | Process for production of high-chromium alloy by smelting reduction |
| RU2222629C2 (en) * | 2002-03-18 | 2004-01-27 | ОАО "ТНК "Казхром" | Refined ferrochrome smelting process |
| RU2424343C2 (en) * | 2009-05-25 | 2011-07-20 | АКЦИОНЕРНОЕ ОБЩЕСТВО "Транснациональная компания "КАЗХРОМ" (АО "ТНК "Казхром") | Procedure for melting refined ferro-chromium |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1586590A (en) * | 1923-02-05 | 1926-06-01 | Rustless Iron Corp | Manufacture of ferrochromium alloy |
| US1793153A (en) * | 1927-07-20 | 1931-02-17 | Electro Metallurg Co | Process of making rustless iron alloys |
| US1901367A (en) * | 1929-02-19 | 1933-03-14 | Gustafsson Emil Gustaf Torvald | Process for producing metals and metal alloys low in carbon |
| US2098176A (en) * | 1934-03-19 | 1937-11-02 | Marvin J Udy | Manufacture of chrome ore preparations |
| US2109122A (en) * | 1935-05-03 | 1938-02-22 | Marvin J Udy | Making ferrochromium |
| US2430117A (en) * | 1944-12-27 | 1947-11-04 | American Rolling Mill Co | Production of stainless steel |
| US2546340A (en) * | 1949-11-14 | 1951-03-27 | Union Carbide & Carbon Corp | Process for producing low-carbon chromium steels |
| US2845342A (en) * | 1953-03-12 | 1958-07-29 | Strategic Udy Metallurg & Chem | Method of recovering ferrochromium |
| US2934422A (en) * | 1958-04-30 | 1960-04-26 | Strategic Udy Metallurgical & Chemical Processes Ltd | Process for the production of ferrochromium products |
-
1959
- 1959-12-04 US US85729359 patent/US2986459A/en not_active Expired - Lifetime
-
1960
- 1960-12-05 GB GB41834/60A patent/GB937507A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| US2986459A (en) | 1961-05-30 |
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