DE3024308C2 - Verfahren zur Entphosphorung und Entstickung von chromhaltigem Roheisen - Google Patents
Verfahren zur Entphosphorung und Entstickung von chromhaltigem RoheisenInfo
- Publication number
- DE3024308C2 DE3024308C2 DE3024308A DE3024308A DE3024308C2 DE 3024308 C2 DE3024308 C2 DE 3024308C2 DE 3024308 A DE3024308 A DE 3024308A DE 3024308 A DE3024308 A DE 3024308A DE 3024308 C2 DE3024308 C2 DE 3024308C2
- Authority
- DE
- Germany
- Prior art keywords
- slag
- dephosphorization
- pig iron
- treatment
- bath
- 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
- 239000011651 chromium Substances 0.000 title claims description 86
- 229910000805 Pig iron Inorganic materials 0.000 title claims description 72
- 229910052804 chromium Inorganic materials 0.000 title claims description 25
- 238000000034 method Methods 0.000 title claims description 25
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 title claims description 6
- 239000002893 slag Substances 0.000 claims description 103
- 150000001875 compounds Chemical class 0.000 claims description 44
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N iron oxide Inorganic materials [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 claims description 38
- 238000007254 oxidation reaction Methods 0.000 claims description 28
- 230000003647 oxidation Effects 0.000 claims description 25
- 150000004649 carbonic acid derivatives Chemical class 0.000 claims description 9
- 229910000287 alkaline earth metal oxide Inorganic materials 0.000 claims description 8
- 235000013980 iron oxide Nutrition 0.000 claims description 8
- 229910000480 nickel oxide Inorganic materials 0.000 claims description 8
- GNRSAWUEBMWBQH-UHFFFAOYSA-N oxonickel Chemical compound [Ni]=O GNRSAWUEBMWBQH-UHFFFAOYSA-N 0.000 claims description 8
- VBMVTYDPPZVILR-UHFFFAOYSA-N iron(2+);oxygen(2-) Chemical class [O-2].[Fe+2] VBMVTYDPPZVILR-UHFFFAOYSA-N 0.000 claims description 6
- 229910001617 alkaline earth metal chloride Inorganic materials 0.000 claims description 4
- 229910001618 alkaline earth metal fluoride Inorganic materials 0.000 claims description 4
- 229910052808 lithium carbonate Inorganic materials 0.000 claims description 4
- FUJCRWPEOMXPAD-UHFFFAOYSA-N lithium oxide Chemical compound [Li+].[Li+].[O-2] FUJCRWPEOMXPAD-UHFFFAOYSA-N 0.000 claims description 4
- 229910001947 lithium oxide Inorganic materials 0.000 claims description 4
- XGZVUEUWXADBQD-UHFFFAOYSA-L lithium carbonate Chemical compound [Li+].[Li+].[O-]C([O-])=O XGZVUEUWXADBQD-UHFFFAOYSA-L 0.000 claims description 2
- 150000001805 chlorine compounds Chemical class 0.000 claims 1
- 239000012768 molten material Substances 0.000 claims 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 42
- ODINCKMPIJJUCX-UHFFFAOYSA-N calcium oxide Inorganic materials [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 description 25
- 239000000292 calcium oxide Substances 0.000 description 24
- BRPQOXSCLDDYGP-UHFFFAOYSA-N calcium oxide Chemical compound [O-2].[Ca+2] BRPQOXSCLDDYGP-UHFFFAOYSA-N 0.000 description 24
- 239000000203 mixture Substances 0.000 description 22
- 230000000052 comparative effect Effects 0.000 description 18
- 229910052751 metal Inorganic materials 0.000 description 18
- 239000002184 metal Substances 0.000 description 18
- 229910052742 iron Inorganic materials 0.000 description 16
- 229910004261 CaF 2 Inorganic materials 0.000 description 14
- 229910052698 phosphorus Inorganic materials 0.000 description 14
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 13
- 229910052744 lithium Inorganic materials 0.000 description 12
- 239000011574 phosphorus Substances 0.000 description 12
- 229910052799 carbon Inorganic materials 0.000 description 10
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 9
- 229910052710 silicon Inorganic materials 0.000 description 9
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 8
- CPLXHLVBOLITMK-UHFFFAOYSA-N Magnesium oxide Chemical compound [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 8
- 229910004298 SiO 2 Inorganic materials 0.000 description 8
- 150000001339 alkali metal compounds Chemical class 0.000 description 8
- 239000007788 liquid Substances 0.000 description 7
- 229910018068 Li 2 O Inorganic materials 0.000 description 6
- 150000003841 chloride salts Chemical class 0.000 description 6
- 230000008020 evaporation Effects 0.000 description 6
- 238000001704 evaporation Methods 0.000 description 6
- 239000000395 magnesium oxide Substances 0.000 description 6
- 230000001590 oxidative effect Effects 0.000 description 6
- 229910052760 oxygen Inorganic materials 0.000 description 6
- 239000000126 substance Substances 0.000 description 6
- 229910052786 argon Inorganic materials 0.000 description 5
- 239000007789 gas Substances 0.000 description 5
- 230000006698 induction Effects 0.000 description 5
- 238000002844 melting Methods 0.000 description 5
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 description 4
- 229910000272 alkali metal oxide Inorganic materials 0.000 description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 3
- WUKWITHWXAAZEY-UHFFFAOYSA-L calcium difluoride Chemical compound [F-].[F-].[Ca+2] WUKWITHWXAAZEY-UHFFFAOYSA-L 0.000 description 3
- 239000003795 chemical substances by application Substances 0.000 description 3
- 238000006477 desulfuration reaction Methods 0.000 description 3
- 230000023556 desulfurization Effects 0.000 description 3
- 239000010439 graphite Substances 0.000 description 3
- 229910002804 graphite Inorganic materials 0.000 description 3
- 230000001771 impaired effect Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 230000008018 melting Effects 0.000 description 3
- 239000001301 oxygen Substances 0.000 description 3
- 238000007670 refining Methods 0.000 description 3
- 239000010703 silicon Substances 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- WCUXLLCKKVVCTQ-UHFFFAOYSA-M Potassium chloride Chemical compound [Cl-].[K+] WCUXLLCKKVVCTQ-UHFFFAOYSA-M 0.000 description 2
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 2
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 2
- 230000002378 acidificating effect Effects 0.000 description 2
- 230000002411 adverse Effects 0.000 description 2
- 229910000288 alkali metal carbonate Inorganic materials 0.000 description 2
- 229910001514 alkali metal chloride Inorganic materials 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 229910001634 calcium fluoride Inorganic materials 0.000 description 2
- 210000003608 fece Anatomy 0.000 description 2
- 239000011261 inert gas Substances 0.000 description 2
- KWGKDLIKAYFUFQ-UHFFFAOYSA-M lithium chloride Chemical compound [Li+].[Cl-] KWGKDLIKAYFUFQ-UHFFFAOYSA-M 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- BTBUEUYNUDRHOZ-UHFFFAOYSA-N Borate Chemical compound [O-]B([O-])[O-] BTBUEUYNUDRHOZ-UHFFFAOYSA-N 0.000 description 1
- 229910000975 Carbon steel Inorganic materials 0.000 description 1
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 1
- PMVSDNDAUGGCCE-TYYBGVCCSA-L Ferrous fumarate Chemical compound [Fe+2].[O-]C(=O)\C=C\C([O-])=O PMVSDNDAUGGCCE-TYYBGVCCSA-L 0.000 description 1
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 235000011941 Tilia x europaea Nutrition 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 229910052783 alkali metal Inorganic materials 0.000 description 1
- 229910001515 alkali metal fluoride Inorganic materials 0.000 description 1
- 150000001340 alkali metals Chemical class 0.000 description 1
- 229910052784 alkaline earth metal Inorganic materials 0.000 description 1
- 150000001342 alkaline earth metals Chemical class 0.000 description 1
- 239000002585 base Substances 0.000 description 1
- 239000011822 basic refractory Substances 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- WETINTNJFLGREW-UHFFFAOYSA-N calcium;iron;tetrahydrate Chemical compound O.O.O.O.[Ca].[Fe].[Fe] WETINTNJFLGREW-UHFFFAOYSA-N 0.000 description 1
- 239000010962 carbon steel Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- QDOXWKRWXJOMAK-UHFFFAOYSA-N dichromium trioxide Chemical compound O=[Cr]O[Cr]=O QDOXWKRWXJOMAK-UHFFFAOYSA-N 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000010436 fluorite Substances 0.000 description 1
- 239000004571 lime Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 229910052700 potassium Inorganic materials 0.000 description 1
- 239000011819 refractory material Substances 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 229910000029 sodium carbonate Inorganic materials 0.000 description 1
- 235000017550 sodium carbonate Nutrition 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 230000009747 swallowing Effects 0.000 description 1
- 230000008719 thickening Effects 0.000 description 1
- 238000012982 x-ray structure analysis Methods 0.000 description 1
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
- C21C1/00—Refining of pig-iron; Cast iron
- C21C1/02—Dephosphorising or desulfurising
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B5/00—Making pig-iron in the blast furnace
- C21B5/02—Making special pig-iron, e.g. by applying additives, e.g. oxides of other metals
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)
- Treatment Of Steel In Its Molten State (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8128579A JPS565910A (en) | 1979-06-29 | 1979-06-29 | Dephosphorizing method of pig iron containing chromium |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| DE3024308A1 DE3024308A1 (de) | 1981-02-26 |
| DE3024308C2 true DE3024308C2 (de) | 1983-08-11 |
Family
ID=13742095
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE3024308A Expired DE3024308C2 (de) | 1979-06-29 | 1980-06-27 | Verfahren zur Entphosphorung und Entstickung von chromhaltigem Roheisen |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US4290803A (enExample) |
| JP (1) | JPS565910A (enExample) |
| DE (1) | DE3024308C2 (enExample) |
| FR (1) | FR2460336A1 (enExample) |
| GB (1) | GB2057015B (enExample) |
| SE (1) | SE437273B (enExample) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58151416A (ja) * | 1982-03-03 | 1983-09-08 | Sumitomo Metal Ind Ltd | クロムを含む溶融鉄合金の脱燐・脱硫方法 |
| JPS5947349A (ja) * | 1982-09-09 | 1984-03-17 | Sumitomo Metal Ind Ltd | クロムを含む溶融鉄合金の脱燐・脱硫方法 |
| JPS59211519A (ja) * | 1983-05-18 | 1984-11-30 | Nisshin Steel Co Ltd | 低ｐ含クロム鋼の製造法 |
| IT1234939B (it) * | 1985-12-06 | 1992-06-02 | Centro Speriment Metallurg | Procedimento per la riduzione del contenuto di impurezze nella ghisa |
| CA2035886C (en) * | 1989-07-08 | 2000-10-17 | Yoshio Nakajima | Method for dephosphorization of chromium-containing molten pig iron with reduced oxidation loss of chromium |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3172756A (en) * | 1965-03-09 | Process of dephosphorizing pig iron | ||
| US2333741A (en) * | 1942-09-29 | 1943-11-09 | Electro Metallurg Co | Manufacture of cast iron |
| US2504802A (en) * | 1944-09-27 | 1950-04-18 | Westinghouse Electric Corp | Brazing flux |
| FR1062328A (fr) * | 1951-08-30 | 1954-04-21 | Procédé pour la déphosphoration de métaux, par exemple de la fonte et ins?ons pour la mise en oeuvre de ce procédé | |
| US3179540A (en) * | 1963-05-21 | 1965-04-20 | Asinovskaja Gnesja Abramovna | Flux for soldering and low-temperature soldering-welding of cast iron by brass solders |
| FR2096985A7 (en) * | 1970-07-23 | 1972-03-03 | Eurossid | Desulphurisation and dephosphorisation of ferrous metal - - by direct addn to melt in casting ladle |
| US3942977A (en) * | 1975-03-24 | 1976-03-09 | Foote Mineral Company | Process for making iron or steel utilizing lithium containing material as auxiliary slag formers |
| US3998624A (en) * | 1975-10-06 | 1976-12-21 | Mercier Corporation | Slag fluidizing agent and method of using same for iron and steel-making processes |
| JPS5910974B2 (ja) * | 1976-03-03 | 1984-03-13 | 新日本製鐵株式会社 | 溶銑の脱燐方法 |
| FR2366365A1 (fr) * | 1976-09-30 | 1978-04-28 | Sumitomo Metal Ind | Procede de dephosphoration de la fonte liquide |
-
1979
- 1979-06-29 JP JP8128579A patent/JPS565910A/ja active Pending
-
1980
- 1980-06-13 US US06/159,097 patent/US4290803A/en not_active Expired - Lifetime
- 1980-06-20 GB GB8020243A patent/GB2057015B/en not_active Expired
- 1980-06-23 SE SE8004627A patent/SE437273B/sv not_active IP Right Cessation
- 1980-06-25 FR FR8014091A patent/FR2460336A1/fr active Granted
- 1980-06-27 DE DE3024308A patent/DE3024308C2/de not_active Expired
Non-Patent Citations (1)
| Title |
|---|
| NICHTS-ERMITTELT |
Also Published As
| Publication number | Publication date |
|---|---|
| FR2460336A1 (fr) | 1981-01-23 |
| US4290803A (en) | 1981-09-22 |
| SE437273B (sv) | 1985-02-18 |
| DE3024308A1 (de) | 1981-02-26 |
| JPS565910A (en) | 1981-01-22 |
| GB2057015A (en) | 1981-03-25 |
| GB2057015B (en) | 1983-01-12 |
| FR2460336B1 (enExample) | 1984-05-04 |
| SE8004627L (sv) | 1980-12-30 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| OAM | Search report available | ||
| OC | Search report available | ||
| OD | Request for examination | ||
| 8128 | New person/name/address of the agent |
Representative=s name: VON FUENER, A., DIPL.-CHEM. DR.RER.NAT. EBBINGHAUS |
|
| 8181 | Inventor (new situation) |
Free format text: SHIGEAKI, MARUHASHI MORIHIRO, HASEGAWA TAKASHI, YAMAUCHI, SHIN-NANYO, YAMAGUCHI, JP |
|
| D2 | Grant after examination | ||
| 8364 | No opposition during term of opposition | ||
| 8339 | Ceased/non-payment of the annual fee |