FI75192C - Foerfarande foer anrikning av kromitmalmer. - Google Patents
Foerfarande foer anrikning av kromitmalmer. Download PDFInfo
- Publication number
- FI75192C FI75192C FI850749A FI850749A FI75192C FI 75192 C FI75192 C FI 75192C FI 850749 A FI850749 A FI 850749A FI 850749 A FI850749 A FI 850749A FI 75192 C FI75192 C FI 75192C
- Authority
- FI
- Finland
- Prior art keywords
- ratio
- iron
- chromite
- reduced
- temperature
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims description 10
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 52
- 229910052742 iron Inorganic materials 0.000 claims description 21
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 claims description 18
- 239000000463 material Substances 0.000 claims description 11
- 235000013980 iron oxide Nutrition 0.000 claims description 10
- 239000002245 particle Substances 0.000 claims description 8
- 239000000725 suspension Substances 0.000 claims description 8
- 239000007787 solid Substances 0.000 claims description 6
- 239000003638 chemical reducing agent Substances 0.000 claims description 5
- 230000001590 oxidative effect Effects 0.000 claims description 5
- VBMVTYDPPZVILR-UHFFFAOYSA-N iron(2+);oxygen(2-) Chemical class [O-2].[Fe+2] VBMVTYDPPZVILR-UHFFFAOYSA-N 0.000 claims description 4
- 150000001339 alkali metal compounds Chemical class 0.000 claims description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims 2
- 238000000605 extraction Methods 0.000 claims 2
- 229910002092 carbon dioxide Inorganic materials 0.000 claims 1
- 239000001569 carbon dioxide Substances 0.000 claims 1
- 239000011651 chromium Substances 0.000 description 16
- 229910052804 chromium Inorganic materials 0.000 description 15
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 14
- 239000012141 concentrate Substances 0.000 description 13
- 229910052799 carbon Inorganic materials 0.000 description 9
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 8
- UPHIPHFJVNKLMR-UHFFFAOYSA-N chromium iron Chemical compound [Cr].[Fe] UPHIPHFJVNKLMR-UHFFFAOYSA-N 0.000 description 5
- 238000002791 soaking Methods 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 230000003647 oxidation Effects 0.000 description 3
- 238000007254 oxidation reaction Methods 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 239000007864 aqueous solution Substances 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- -1 ferrous metals Chemical class 0.000 description 2
- 229910052737 gold Inorganic materials 0.000 description 2
- 239000010931 gold Substances 0.000 description 2
- YDZQQRWRVYGNER-UHFFFAOYSA-N iron;titanium;trihydrate Chemical compound O.O.O.[Ti].[Fe] YDZQQRWRVYGNER-UHFFFAOYSA-N 0.000 description 2
- 239000003077 lignite Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910052596 spinel Inorganic materials 0.000 description 2
- 239000011029 spinel Substances 0.000 description 2
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 description 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 description 1
- VVQNEPGJFQJSBK-UHFFFAOYSA-N Methyl methacrylate Chemical compound COC(=O)C(C)=C VVQNEPGJFQJSBK-UHFFFAOYSA-N 0.000 description 1
- 229910002651 NO3 Inorganic materials 0.000 description 1
- NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 description 1
- 229920005372 Plexiglas® Polymers 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 1
- 229910010413 TiO 2 Inorganic materials 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- 229910052783 alkali metal Inorganic materials 0.000 description 1
- 150000001340 alkali metals Chemical class 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 150000001450 anions Chemical class 0.000 description 1
- 230000001174 ascending effect Effects 0.000 description 1
- 239000012298 atmosphere Substances 0.000 description 1
- OKTJSMMVPCPJKN-YPZZEJLDSA-N carbon-10 atom Chemical compound [10C] OKTJSMMVPCPJKN-YPZZEJLDSA-N 0.000 description 1
- 239000003575 carbonaceous material Substances 0.000 description 1
- 150000001768 cations Chemical class 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 229910001429 cobalt ion Inorganic materials 0.000 description 1
- XLJKHNWPARRRJB-UHFFFAOYSA-N cobalt(2+) Chemical compound [Co+2] XLJKHNWPARRRJB-UHFFFAOYSA-N 0.000 description 1
- 238000010908 decantation Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 150000002632 lipids Chemical class 0.000 description 1
- 238000007885 magnetic separation Methods 0.000 description 1
- 229910052748 manganese Inorganic materials 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000012299 nitrogen atmosphere Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
- 229910052720 vanadium Inorganic materials 0.000 description 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
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B13/00—Making spongy iron or liquid steel, by direct processes
- C21B13/08—Making spongy iron or liquid steel, by direct processes in rotary furnaces
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B34/00—Obtaining refractory metals
- C22B34/30—Obtaining chromium, molybdenum or tungsten
- C22B34/32—Obtaining chromium
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Mechanical Engineering (AREA)
- Manufacture And Refinement Of Metals (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE3415105 | 1984-04-21 | ||
| DE19843415105 DE3415105A1 (de) | 1984-04-21 | 1984-04-21 | Verfahren zur aufbereitung von chromiterzen |
Publications (4)
| Publication Number | Publication Date |
|---|---|
| FI850749A0 FI850749A0 (fi) | 1985-02-22 |
| FI850749L FI850749L (fi) | 1985-10-22 |
| FI75192B FI75192B (fi) | 1988-01-29 |
| FI75192C true FI75192C (fi) | 1988-05-09 |
Family
ID=6234169
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FI850749A FI75192C (fi) | 1984-04-21 | 1985-02-22 | Foerfarande foer anrikning av kromitmalmer. |
Country Status (6)
| Country | Link |
|---|---|
| DE (1) | DE3415105A1 (enrdf_load_stackoverflow) |
| FI (1) | FI75192C (enrdf_load_stackoverflow) |
| IN (1) | IN159229B (enrdf_load_stackoverflow) |
| PH (1) | PH22595A (enrdf_load_stackoverflow) |
| ZA (1) | ZA852960B (enrdf_load_stackoverflow) |
| ZW (1) | ZW7285A1 (enrdf_load_stackoverflow) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2655864B2 (ja) * | 1988-03-14 | 1997-09-24 | 昭和電工株式会社 | 高還元クロム鉱石粉体の製造方法 |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2339793A (en) * | 1940-11-23 | 1944-01-25 | Moeklebust Olav | Method of treating ferruginous minerals containing other metal constituents |
| US2905546A (en) * | 1957-12-05 | 1959-09-22 | American Chrome Company | Chemical upgrading of chromium bearing materials |
| GB980864A (en) * | 1960-01-15 | 1965-01-20 | Laporte Titanium Ltd | Improved process for the beneficiation of ores |
| GB1040443A (en) * | 1962-05-02 | 1966-08-24 | Nat Res Dev | Treatment of chromite |
| US3508906A (en) * | 1967-08-30 | 1970-04-28 | Foote Mineral Co | Beneficiation of chromium ore to reduce the iron content |
-
1984
- 1984-04-21 DE DE19843415105 patent/DE3415105A1/de not_active Withdrawn
- 1984-07-17 IN IN515/CAL/84A patent/IN159229B/en unknown
-
1985
- 1985-02-22 FI FI850749A patent/FI75192C/fi not_active IP Right Cessation
- 1985-03-29 PH PH32073A patent/PH22595A/en unknown
- 1985-04-17 ZW ZW72/85A patent/ZW7285A1/xx unknown
- 1985-04-19 ZA ZA852960A patent/ZA852960B/xx unknown
Also Published As
| Publication number | Publication date |
|---|---|
| ZA852960B (en) | 1986-12-30 |
| DE3415105A1 (de) | 1985-10-31 |
| FI850749L (fi) | 1985-10-22 |
| PH22595A (en) | 1988-10-17 |
| ZW7285A1 (en) | 1986-11-19 |
| FI75192B (fi) | 1988-01-29 |
| IN159229B (enrdf_load_stackoverflow) | 1987-04-18 |
| FI850749A0 (fi) | 1985-02-22 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MM | Patent lapsed | ||
| MM | Patent lapsed |
Owner name: METALLGESELLSCHAFT AKTIENGESELLSCHAFT |