FI87237C - Foerfarande foer reduktion av kromitmalm - Google Patents
Foerfarande foer reduktion av kromitmalm Download PDFInfo
- Publication number
- FI87237C FI87237C FI873420A FI873420A FI87237C FI 87237 C FI87237 C FI 87237C FI 873420 A FI873420 A FI 873420A FI 873420 A FI873420 A FI 873420A FI 87237 C FI87237 C FI 87237C
- Authority
- FI
- Finland
- Prior art keywords
- process according
- feldspar
- reduction
- chromite
- mixture
- Prior art date
Links
- 230000009467 reduction Effects 0.000 claims description 52
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 39
- 239000011651 chromium Substances 0.000 claims description 34
- 229910052804 chromium Inorganic materials 0.000 claims description 31
- 239000000203 mixture Substances 0.000 claims description 30
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims description 29
- 238000000034 method Methods 0.000 claims description 23
- 230000004907 flux Effects 0.000 claims description 22
- 239000010433 feldspar Substances 0.000 claims description 21
- 229910052742 iron Inorganic materials 0.000 claims description 20
- 230000008569 process Effects 0.000 claims description 20
- 239000003638 chemical reducing agent Substances 0.000 claims description 14
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 claims description 13
- 239000011737 fluorine Substances 0.000 claims description 13
- 229910052731 fluorine Inorganic materials 0.000 claims description 13
- 239000010453 quartz Substances 0.000 claims description 13
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 13
- 239000007787 solid Substances 0.000 claims description 11
- -1 alkali metal aluminosilicate Chemical class 0.000 claims description 10
- 229910052783 alkali metal Inorganic materials 0.000 claims description 9
- 239000010438 granite Substances 0.000 claims description 9
- 239000008188 pellet Substances 0.000 claims description 8
- 239000002893 slag Substances 0.000 claims description 8
- WUKWITHWXAAZEY-UHFFFAOYSA-L calcium difluoride Chemical compound [F-].[F-].[Ca+2] WUKWITHWXAAZEY-UHFFFAOYSA-L 0.000 claims description 7
- 229910001634 calcium fluoride Inorganic materials 0.000 claims description 7
- 238000010438 heat treatment Methods 0.000 claims description 7
- 229910000323 aluminium silicate Inorganic materials 0.000 claims description 6
- 239000003795 chemical substances by application Substances 0.000 claims description 6
- 150000001875 compounds Chemical class 0.000 claims description 5
- 239000010435 syenite Substances 0.000 claims description 5
- 230000015572 biosynthetic process Effects 0.000 claims description 4
- 239000007788 liquid Substances 0.000 claims description 4
- 239000002245 particle Substances 0.000 claims description 4
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N iron oxide Inorganic materials [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 claims description 3
- 235000013980 iron oxide Nutrition 0.000 claims description 2
- VBMVTYDPPZVILR-UHFFFAOYSA-N iron(2+);oxygen(2-) Chemical class [O-2].[Fe+2] VBMVTYDPPZVILR-UHFFFAOYSA-N 0.000 claims description 2
- 229910021332 silicide Inorganic materials 0.000 claims description 2
- 238000005755 formation reaction Methods 0.000 claims 2
- 238000003723 Smelting Methods 0.000 claims 1
- 238000001465 metallisation Methods 0.000 description 19
- 230000000694 effects Effects 0.000 description 14
- 229940124024 weight reducing agent Drugs 0.000 description 13
- 238000007792 addition Methods 0.000 description 12
- 239000000463 material Substances 0.000 description 9
- 239000000126 substance Substances 0.000 description 8
- CPLXHLVBOLITMK-UHFFFAOYSA-N Magnesium oxide Chemical compound [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 7
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 6
- 239000000654 additive Substances 0.000 description 6
- 230000000996 additive effect Effects 0.000 description 6
- 238000002844 melting Methods 0.000 description 6
- 230000008018 melting Effects 0.000 description 6
- 229910052799 carbon Inorganic materials 0.000 description 5
- 238000002474 experimental method Methods 0.000 description 4
- 239000000395 magnesium oxide Substances 0.000 description 4
- 239000012071 phase Substances 0.000 description 4
- 229910052596 spinel Inorganic materials 0.000 description 4
- 239000011029 spinel Substances 0.000 description 4
- RHZUVFJBSILHOK-UHFFFAOYSA-N anthracen-1-ylmethanolate Chemical compound C1=CC=C2C=C3C(C[O-])=CC=CC3=CC2=C1 RHZUVFJBSILHOK-UHFFFAOYSA-N 0.000 description 3
- 239000003830 anthracite Substances 0.000 description 3
- 239000000440 bentonite Substances 0.000 description 3
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 description 3
- 239000011230 binding agent Substances 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- 239000011777 magnesium Substances 0.000 description 3
- 159000000000 sodium salts Chemical class 0.000 description 3
- 235000013311 vegetables Nutrition 0.000 description 3
- 229910004298 SiO 2 Inorganic materials 0.000 description 2
- 238000005054 agglomeration Methods 0.000 description 2
- 230000002776 aggregation Effects 0.000 description 2
- 229910000278 bentonite Inorganic materials 0.000 description 2
- 229940092782 bentonite Drugs 0.000 description 2
- 210000000988 bone and bone Anatomy 0.000 description 2
- 239000011575 calcium Substances 0.000 description 2
- 239000003610 charcoal Substances 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 239000004615 ingredient Substances 0.000 description 2
- 229910052749 magnesium Inorganic materials 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 230000000704 physical effect Effects 0.000 description 2
- 238000011946 reduction process Methods 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 239000011734 sodium Substances 0.000 description 2
- 239000013589 supplement Substances 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 229910018072 Al 2 O 3 Inorganic materials 0.000 description 1
- 101100025420 Arabidopsis thaliana XI-C gene Proteins 0.000 description 1
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- 206010011416 Croup infectious Diseases 0.000 description 1
- 229910000604 Ferrochrome Inorganic materials 0.000 description 1
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- MOMWFXLCFJOAFX-UHFFFAOYSA-N OOOOOOOO Chemical compound OOOOOOOO MOMWFXLCFJOAFX-UHFFFAOYSA-N 0.000 description 1
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 1
- 239000004115 Sodium Silicate Substances 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- WGLPBDUCMAPZCE-UHFFFAOYSA-N Trioxochromium Chemical compound O=[Cr](=O)=O WGLPBDUCMAPZCE-UHFFFAOYSA-N 0.000 description 1
- NMWAJYMZGCXJQG-UHFFFAOYSA-L [F-].[F-].[Na+].[Ca+2] Chemical compound [F-].[F-].[Na+].[Ca+2] NMWAJYMZGCXJQG-UHFFFAOYSA-L 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 150000001340 alkali metals Chemical class 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 229910052791 calcium Inorganic materials 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
- 239000000919 ceramic Substances 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- UPHIPHFJVNKLMR-UHFFFAOYSA-N chromium iron Chemical compound [Cr].[Fe] UPHIPHFJVNKLMR-UHFFFAOYSA-N 0.000 description 1
- 229910000423 chromium oxide Inorganic materials 0.000 description 1
- 239000000571 coke Substances 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000010924 continuous production Methods 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 238000010218 electron microscopic analysis Methods 0.000 description 1
- 239000000284 extract Substances 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 229910052629 lepidolite Inorganic materials 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000010434 nepheline Substances 0.000 description 1
- 229910052664 nepheline Inorganic materials 0.000 description 1
- QJGQUHMNIGDVPM-UHFFFAOYSA-N nitrogen group Chemical group [N] QJGQUHMNIGDVPM-UHFFFAOYSA-N 0.000 description 1
- 230000001151 other effect Effects 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052700 potassium Inorganic materials 0.000 description 1
- 239000011591 potassium Substances 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 230000035484 reaction time Effects 0.000 description 1
- 239000010801 sewage sludge Substances 0.000 description 1
- 239000010454 slate Substances 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 229940080314 sodium bentonite Drugs 0.000 description 1
- 229910000280 sodium bentonite Inorganic materials 0.000 description 1
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 description 1
- 229910052911 sodium silicate Inorganic materials 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
- 239000013585 weight reducing agent Substances 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Landscapes
- Manufacture And Refinement Of Metals (AREA)
- Inorganic Compounds Of Heavy Metals (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ZA8605937 | 1986-08-07 | ||
| ZA865937 | 1986-08-07 |
Publications (4)
| Publication Number | Publication Date |
|---|---|
| FI873420A0 FI873420A0 (fi) | 1987-08-06 |
| FI873420L FI873420L (fi) | 1988-02-08 |
| FI87237B FI87237B (fi) | 1992-08-31 |
| FI87237C true FI87237C (fi) | 1992-12-10 |
Family
ID=25578507
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FI873420A FI87237C (fi) | 1986-08-07 | 1987-08-06 | Foerfarande foer reduktion av kromitmalm |
Country Status (5)
| Country | Link |
|---|---|
| BR (1) | BR8704022A (enrdf_load_stackoverflow) |
| FI (1) | FI87237C (enrdf_load_stackoverflow) |
| GR (1) | GR871253B (enrdf_load_stackoverflow) |
| IN (1) | IN167768B (enrdf_load_stackoverflow) |
| TR (1) | TR23786A (enrdf_load_stackoverflow) |
-
1987
- 1987-07-29 IN IN658/DEL/87A patent/IN167768B/en unknown
- 1987-08-06 GR GR871253A patent/GR871253B/el unknown
- 1987-08-06 FI FI873420A patent/FI87237C/fi not_active IP Right Cessation
- 1987-08-06 BR BR8704022A patent/BR8704022A/pt not_active IP Right Cessation
- 1987-08-10 TR TR87/0553A patent/TR23786A/xx unknown
Also Published As
| Publication number | Publication date |
|---|---|
| FI873420A0 (fi) | 1987-08-06 |
| GR871253B (en) | 1988-01-18 |
| IN167768B (enrdf_load_stackoverflow) | 1990-12-15 |
| TR23786A (tr) | 1990-09-13 |
| BR8704022A (pt) | 1988-04-05 |
| FI87237B (fi) | 1992-08-31 |
| FI873420L (fi) | 1988-02-08 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MM | Patent lapsed | ||
| MM | Patent lapsed |
Owner name: COUNCIL FOR MINERAL TECHNOLOGY |