JPS6250544B2 - - Google Patents
Info
- Publication number
- JPS6250544B2 JPS6250544B2 JP11782483A JP11782483A JPS6250544B2 JP S6250544 B2 JPS6250544 B2 JP S6250544B2 JP 11782483 A JP11782483 A JP 11782483A JP 11782483 A JP11782483 A JP 11782483A JP S6250544 B2 JPS6250544 B2 JP S6250544B2
- Authority
- JP
- Japan
- Prior art keywords
- slag
- chromium
- reduction
- amount
- smelting
- 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
- 239000002893 slag Substances 0.000 claims description 91
- 230000009467 reduction Effects 0.000 claims description 89
- 239000011651 chromium Substances 0.000 claims description 70
- 238000003723 Smelting Methods 0.000 claims description 65
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims description 63
- 229910052751 metal Inorganic materials 0.000 claims description 63
- 239000002184 metal Substances 0.000 claims description 63
- 239000003575 carbonaceous material Substances 0.000 claims description 56
- 229910052804 chromium Inorganic materials 0.000 claims description 45
- 238000007664 blowing Methods 0.000 claims description 39
- 238000000034 method Methods 0.000 claims description 22
- 239000000203 mixture Substances 0.000 claims description 22
- 229910052799 carbon Inorganic materials 0.000 claims description 21
- 238000006243 chemical reaction Methods 0.000 claims description 21
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 20
- 239000002994 raw material Substances 0.000 claims description 17
- 230000004907 flux Effects 0.000 claims description 15
- 229910018072 Al 2 O 3 Inorganic materials 0.000 claims description 13
- 229910000423 chromium oxide Inorganic materials 0.000 claims description 12
- 229910004298 SiO 2 Inorganic materials 0.000 claims description 11
- 238000004519 manufacturing process Methods 0.000 claims description 11
- WGLPBDUCMAPZCE-UHFFFAOYSA-N Trioxochromium Chemical compound O=[Cr](=O)=O WGLPBDUCMAPZCE-UHFFFAOYSA-N 0.000 claims description 10
- 239000000463 material Substances 0.000 claims description 8
- 229910000599 Cr alloy Inorganic materials 0.000 claims description 7
- 239000000788 chromium alloy Substances 0.000 claims description 7
- 230000008569 process Effects 0.000 claims description 7
- 230000001590 oxidative effect Effects 0.000 claims description 3
- 229910052720 vanadium Inorganic materials 0.000 claims description 3
- 238000006722 reduction reaction Methods 0.000 description 99
- 239000007789 gas Substances 0.000 description 42
- CPLXHLVBOLITMK-UHFFFAOYSA-N Magnesium oxide Chemical compound [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 32
- 239000008188 pellet Substances 0.000 description 28
- ODINCKMPIJJUCX-UHFFFAOYSA-N Calcium oxide Chemical compound [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 description 22
- 238000003756 stirring Methods 0.000 description 20
- 239000002253 acid Substances 0.000 description 17
- 238000002844 melting Methods 0.000 description 17
- 230000008018 melting Effects 0.000 description 17
- 239000000395 magnesium oxide Substances 0.000 description 16
- 239000001301 oxygen Substances 0.000 description 15
- 229910052760 oxygen Inorganic materials 0.000 description 15
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 14
- 230000000694 effects Effects 0.000 description 13
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 11
- 239000000292 calcium oxide Substances 0.000 description 11
- 235000012255 calcium oxide Nutrition 0.000 description 11
- 239000000571 coke Substances 0.000 description 11
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 10
- 229910000604 Ferrochrome Inorganic materials 0.000 description 9
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 9
- 238000002474 experimental method Methods 0.000 description 9
- 238000010438 heat treatment Methods 0.000 description 7
- 239000011819 refractory material Substances 0.000 description 7
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 6
- 235000011941 Tilia x europaea Nutrition 0.000 description 6
- 229910002091 carbon monoxide Inorganic materials 0.000 description 6
- 229910052742 iron Inorganic materials 0.000 description 6
- 239000004571 lime Substances 0.000 description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 5
- 239000011449 brick Substances 0.000 description 5
- 229910052593 corundum Inorganic materials 0.000 description 5
- 238000010586 diagram Methods 0.000 description 5
- 230000005611 electricity Effects 0.000 description 5
- 239000000377 silicon dioxide Substances 0.000 description 5
- 229910001845 yogo sapphire Inorganic materials 0.000 description 5
- 239000003610 charcoal Substances 0.000 description 4
- 239000003245 coal Substances 0.000 description 4
- 229910052681 coesite Inorganic materials 0.000 description 4
- 238000002485 combustion reaction Methods 0.000 description 4
- 229910052906 cristobalite Inorganic materials 0.000 description 4
- 235000013980 iron oxide Nutrition 0.000 description 4
- 239000002923 metal particle Substances 0.000 description 4
- 230000003647 oxidation Effects 0.000 description 4
- 238000007254 oxidation reaction Methods 0.000 description 4
- 238000011946 reduction process Methods 0.000 description 4
- 235000012239 silicon dioxide Nutrition 0.000 description 4
- 238000007711 solidification Methods 0.000 description 4
- 230000008023 solidification Effects 0.000 description 4
- 229910052682 stishovite Inorganic materials 0.000 description 4
- 238000003860 storage Methods 0.000 description 4
- 229910052905 tridymite Inorganic materials 0.000 description 4
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 3
- 235000019738 Limestone Nutrition 0.000 description 3
- 230000007797 corrosion Effects 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 3
- 230000007423 decrease Effects 0.000 description 3
- 239000000446 fuel Substances 0.000 description 3
- 239000006028 limestone Substances 0.000 description 3
- 238000010079 rubber tapping Methods 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- 238000009628 steelmaking Methods 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 239000004215 Carbon black (E152) Substances 0.000 description 2
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- ATUOYWHBWRKTHZ-UHFFFAOYSA-N Propane Chemical compound CCC ATUOYWHBWRKTHZ-UHFFFAOYSA-N 0.000 description 2
- 239000003638 chemical reducing agent Substances 0.000 description 2
- UPHIPHFJVNKLMR-UHFFFAOYSA-N chromium iron Chemical compound [Cr].[Fe] UPHIPHFJVNKLMR-UHFFFAOYSA-N 0.000 description 2
- -1 coke Chemical compound 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 2
- 229910001882 dioxygen Inorganic materials 0.000 description 2
- 230000020169 heat generation Effects 0.000 description 2
- 229930195733 hydrocarbon Natural products 0.000 description 2
- 150000002430 hydrocarbons Chemical class 0.000 description 2
- 230000006698 induction Effects 0.000 description 2
- 238000010298 pulverizing process Methods 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 229920006395 saturated elastomer Polymers 0.000 description 2
- 229910052596 spinel Inorganic materials 0.000 description 2
- 239000011029 spinel Substances 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 229910000640 Fe alloy Inorganic materials 0.000 description 1
- 229910017112 Fe—C Inorganic materials 0.000 description 1
- 229910000805 Pig iron Inorganic materials 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910000905 alloy phase Inorganic materials 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000011203 carbon fibre reinforced carbon Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- UOUJSJZBMCDAEU-UHFFFAOYSA-N chromium(3+);oxygen(2-) Chemical class [O-2].[O-2].[O-2].[Cr+3].[Cr+3] UOUJSJZBMCDAEU-UHFFFAOYSA-N 0.000 description 1
- 239000000112 cooling gas Substances 0.000 description 1
- 230000001186 cumulative effect Effects 0.000 description 1
- 238000005261 decarburization Methods 0.000 description 1
- 239000010459 dolomite Substances 0.000 description 1
- 229910000514 dolomite Inorganic materials 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- VBMVTYDPPZVILR-UHFFFAOYSA-N iron(2+);oxygen(2-) Chemical class [O-2].[Fe+2] VBMVTYDPPZVILR-UHFFFAOYSA-N 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000007885 magnetic separation Methods 0.000 description 1
- 235000013372 meat Nutrition 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 239000012768 molten material Substances 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 238000011017 operating method Methods 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 230000002250 progressing effect Effects 0.000 description 1
- 239000001294 propane Substances 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000010405 reoxidation reaction Methods 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 239000003516 soil conditioner Substances 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 239000000126 substance Substances 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
- C21C5/00—Manufacture of carbon-steel, e.g. plain mild steel, medium carbon steel or cast steel or stainless steel
- C21C5/28—Manufacture of steel in the converter
- C21C5/30—Regulating or controlling the blowing
- C21C5/35—Blowing from above and through the bath
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Refinement Of Pig-Iron, Manufacture Of Cast Iron, And Steel Manufacture Other Than In Revolving Furnaces (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11782483A JPS609815A (ja) | 1983-06-29 | 1983-06-29 | 溶融還元による高クロム合金製造方法 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11782483A JPS609815A (ja) | 1983-06-29 | 1983-06-29 | 溶融還元による高クロム合金製造方法 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS609815A JPS609815A (ja) | 1985-01-18 |
| JPS6250544B2 true JPS6250544B2 (fr) | 1987-10-26 |
Family
ID=14721152
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11782483A Granted JPS609815A (ja) | 1983-06-29 | 1983-06-29 | 溶融還元による高クロム合金製造方法 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS609815A (fr) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61291947A (ja) * | 1985-06-18 | 1986-12-22 | Kawasaki Steel Corp | 中炭素または低炭素フェロマンガンの製造方法 |
| JPS6377098U (fr) * | 1986-11-11 | 1988-05-21 | ||
| JPH0511920Y2 (fr) * | 1986-11-18 | 1993-03-25 | ||
| JPH07100807B2 (ja) * | 1988-02-24 | 1995-11-01 | 川崎製鉄株式会社 | 低ｓ含クロム溶鉄の製造方法 |
| JPH0382704A (ja) * | 1989-08-25 | 1991-04-08 | Isao Tanabe | 原料フェロクロム製造に電気炉を使用しない製錬電力不要のステンレス鋼製錬法 |
| AT412481B (de) * | 2003-06-30 | 2005-03-25 | Patco Engineering Gmbh | Verfahren zum aufbereiten von schlacken und stäuben aus der edelstahlherstellung |
-
1983
- 1983-06-29 JP JP11782483A patent/JPS609815A/ja active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS609815A (ja) | 1985-01-18 |
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