JPS623204B2 - - Google Patents
Info
- Publication number
- JPS623204B2 JPS623204B2 JP55029790A JP2979080A JPS623204B2 JP S623204 B2 JPS623204 B2 JP S623204B2 JP 55029790 A JP55029790 A JP 55029790A JP 2979080 A JP2979080 A JP 2979080A JP S623204 B2 JPS623204 B2 JP S623204B2
- Authority
- JP
- Japan
- Prior art keywords
- slag
- phosphoric acid
- weight
- cao
- hot metal
- 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 84
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 claims description 82
- 229910000147 aluminium phosphate Inorganic materials 0.000 claims description 42
- 229910052751 metal Inorganic materials 0.000 claims description 32
- 239000002184 metal Substances 0.000 claims description 32
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 claims description 25
- 239000003337 fertilizer Substances 0.000 claims description 25
- 239000003795 chemical substances by application Substances 0.000 claims description 24
- 229910004261 CaF 2 Inorganic materials 0.000 claims description 16
- 238000001816 cooling Methods 0.000 claims description 12
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 10
- 229910052742 iron Inorganic materials 0.000 claims description 6
- 229910000831 Steel Inorganic materials 0.000 claims description 5
- 239000010959 steel Substances 0.000 claims description 5
- 238000004519 manufacturing process Methods 0.000 claims description 4
- 230000003009 desulfurizing effect Effects 0.000 claims description 2
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 description 48
- 238000011282 treatment Methods 0.000 description 33
- 238000000034 method Methods 0.000 description 27
- 238000006477 desulfuration reaction Methods 0.000 description 25
- 230000023556 desulfurization Effects 0.000 description 25
- WUKWITHWXAAZEY-UHFFFAOYSA-L calcium difluoride Chemical compound [F-].[F-].[Ca+2] WUKWITHWXAAZEY-UHFFFAOYSA-L 0.000 description 13
- 239000010436 fluorite Substances 0.000 description 13
- 239000000460 chlorine Substances 0.000 description 12
- 229910052731 fluorine Inorganic materials 0.000 description 10
- 238000010438 heat treatment Methods 0.000 description 10
- 230000000694 effects Effects 0.000 description 9
- 229910052710 silicon Inorganic materials 0.000 description 9
- UXVMQQNJUSDDNG-UHFFFAOYSA-L Calcium chloride Chemical compound [Cl-].[Cl-].[Ca+2] UXVMQQNJUSDDNG-UHFFFAOYSA-L 0.000 description 8
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 8
- 239000011737 fluorine Substances 0.000 description 8
- 239000001110 calcium chloride Substances 0.000 description 7
- 229910001628 calcium chloride Inorganic materials 0.000 description 7
- 239000002686 phosphate fertilizer Substances 0.000 description 7
- 229910052698 phosphorus Inorganic materials 0.000 description 7
- 229910004298 SiO 2 Inorganic materials 0.000 description 6
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 6
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 6
- 230000000052 comparative effect Effects 0.000 description 6
- 238000005261 decarburization Methods 0.000 description 6
- 238000002844 melting Methods 0.000 description 6
- 230000008018 melting Effects 0.000 description 6
- 239000010703 silicon Substances 0.000 description 6
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 5
- 239000011574 phosphorus Substances 0.000 description 5
- 229910052717 sulfur Inorganic materials 0.000 description 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 4
- 229910052799 carbon Inorganic materials 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 4
- 229910052801 chlorine Inorganic materials 0.000 description 4
- 230000007423 decrease Effects 0.000 description 4
- 230000000994 depressogenic effect Effects 0.000 description 4
- 238000010828 elution Methods 0.000 description 4
- 238000007670 refining Methods 0.000 description 4
- 238000003756 stirring Methods 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 3
- 229910001634 calcium fluoride Inorganic materials 0.000 description 3
- 239000013078 crystal Substances 0.000 description 3
- 229910001882 dioxygen Inorganic materials 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 238000010791 quenching Methods 0.000 description 3
- 230000000171 quenching effect Effects 0.000 description 3
- 239000000377 silicon dioxide Substances 0.000 description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 229910052589 chlorapatite Inorganic materials 0.000 description 2
- 229910052681 coesite Inorganic materials 0.000 description 2
- 229910052906 cristobalite Inorganic materials 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- PROQIPRRNZUXQM-ZXXIGWHRSA-N estriol Chemical compound OC1=CC=C2[C@H]3CC[C@](C)([C@H]([C@H](O)C4)O)[C@@H]4[C@@H]3CCC2=C1 PROQIPRRNZUXQM-ZXXIGWHRSA-N 0.000 description 2
- 229910052587 fluorapatite Inorganic materials 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- -1 phosphoric acid compound Chemical class 0.000 description 2
- 238000005070 sampling Methods 0.000 description 2
- 235000012239 silicon dioxide Nutrition 0.000 description 2
- 230000000087 stabilizing effect Effects 0.000 description 2
- 229910052682 stishovite Inorganic materials 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 229910052905 tridymite Inorganic materials 0.000 description 2
- ODINCKMPIJJUCX-UHFFFAOYSA-N Calcium oxide Chemical compound [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 description 1
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 1
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 1
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 description 1
- 229910019142 PO4 Inorganic materials 0.000 description 1
- 238000003723 Smelting Methods 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 235000011941 Tilia x europaea Nutrition 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 229910052785 arsenic Inorganic materials 0.000 description 1
- 230000005587 bubbling Effects 0.000 description 1
- 239000001506 calcium phosphate Substances 0.000 description 1
- 229910000389 calcium phosphate Inorganic materials 0.000 description 1
- 235000011010 calcium phosphates Nutrition 0.000 description 1
- 230000000881 depressing effect Effects 0.000 description 1
- 239000010419 fine particle Substances 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000004571 lime Substances 0.000 description 1
- 239000002075 main ingredient Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 229910052748 manganese Inorganic materials 0.000 description 1
- 239000011572 manganese Substances 0.000 description 1
- WPBNNNQJVZRUHP-UHFFFAOYSA-L manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate Chemical compound [Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WPBNNNQJVZRUHP-UHFFFAOYSA-L 0.000 description 1
- 239000007800 oxidant agent Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 1
- 239000010452 phosphate Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000010583 slow cooling Methods 0.000 description 1
- 238000009628 steelmaking Methods 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- QORWJWZARLRLPR-UHFFFAOYSA-H tricalcium bis(phosphate) Chemical compound [Ca+2].[Ca+2].[Ca+2].[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O QORWJWZARLRLPR-UHFFFAOYSA-H 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
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Fertilizers (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 |
|---|---|---|---|
| JP2979080A JPS56127717A (en) | 1980-03-11 | 1980-03-11 | Steel making process discharging slag suited as phosphatic fertilizer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2979080A JPS56127717A (en) | 1980-03-11 | 1980-03-11 | Steel making process discharging slag suited as phosphatic fertilizer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS56127717A JPS56127717A (en) | 1981-10-06 |
| JPS623204B2 true JPS623204B2 (fr) | 1987-01-23 |
Family
ID=12285785
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2979080A Granted JPS56127717A (en) | 1980-03-11 | 1980-03-11 | Steel making process discharging slag suited as phosphatic fertilizer |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS56127717A (fr) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20040010645A (ko) * | 2001-05-17 | 2004-01-31 | 제이에프이 스틸 가부시키가이샤 | 인산비료용 원료 및 그 제조방법 |
| JP2003048793A (ja) * | 2001-08-02 | 2003-02-21 | Nkk Corp | 緩効性カリ肥料の製造方法 |
| CN1481346A (zh) * | 2001-10-31 | 2004-03-10 | 杰富意钢铁株式会社 | 硅酸磷酸肥料用原料及其制造方法 |
| JP4622800B2 (ja) * | 2005-10-19 | 2011-02-02 | 住友金属工業株式会社 | 機械攪拌方式による溶銑の脱燐方法 |
| JP5888720B2 (ja) * | 2011-04-28 | 2016-03-22 | 株式会社クボタ | 肥料の製造方法、及び肥料の製造方法に用いられる回転式表面溶融炉 |
| JP6303696B2 (ja) * | 2014-03-27 | 2018-04-04 | 新日鐵住金株式会社 | リン酸肥料原料及びその製造方法 |
| US11254992B2 (en) * | 2017-10-20 | 2022-02-22 | Nippon Steel Corporation | Method of dechromizing molten iron and method of manufacturing phosphate fertilizer raw material |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS54152611A (en) * | 1978-05-22 | 1979-12-01 | Kobe Steel Ltd | Removing method for sodium in aluminum or aluminum alloy |
-
1980
- 1980-03-11 JP JP2979080A patent/JPS56127717A/ja active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS54152611A (en) * | 1978-05-22 | 1979-12-01 | Kobe Steel Ltd | Removing method for sodium in aluminum or aluminum alloy |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS56127717A (en) | 1981-10-06 |
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