DE3310329C2 - - Google Patents
Info
- Publication number
- DE3310329C2 DE3310329C2 DE3310329A DE3310329A DE3310329C2 DE 3310329 C2 DE3310329 C2 DE 3310329C2 DE 3310329 A DE3310329 A DE 3310329A DE 3310329 A DE3310329 A DE 3310329A DE 3310329 C2 DE3310329 C2 DE 3310329C2
- Authority
- DE
- Germany
- Prior art keywords
- slag
- alkaline earth
- earth metal
- metal compound
- compound
- 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 - Fee Related
Links
- 239000002893 slag Substances 0.000 claims description 90
- 238000000034 method Methods 0.000 claims description 47
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 claims description 28
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims description 24
- UIIMBOGNXHQVGW-UHFFFAOYSA-M Sodium bicarbonate Chemical compound [Na+].OC([O-])=O UIIMBOGNXHQVGW-UHFFFAOYSA-M 0.000 claims description 24
- 150000001341 alkaline earth metal compounds Chemical class 0.000 claims description 24
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 23
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 22
- 229910052698 phosphorus Inorganic materials 0.000 claims description 22
- 239000011574 phosphorus Substances 0.000 claims description 22
- 239000010703 silicon Substances 0.000 claims description 22
- 229910052710 silicon Inorganic materials 0.000 claims description 22
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims description 18
- 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 claims description 17
- 239000011734 sodium Substances 0.000 claims description 17
- 229910052708 sodium Inorganic materials 0.000 claims description 17
- ODINCKMPIJJUCX-UHFFFAOYSA-N calcium oxide Inorganic materials [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 claims description 16
- 150000001875 compounds Chemical class 0.000 claims description 16
- 239000000292 calcium oxide Substances 0.000 claims description 15
- 239000007789 gas Substances 0.000 claims description 13
- 229910000029 sodium carbonate Inorganic materials 0.000 claims description 13
- 229910000030 sodium bicarbonate Inorganic materials 0.000 claims description 12
- 235000017557 sodium bicarbonate Nutrition 0.000 claims description 12
- 238000006477 desulfuration reaction Methods 0.000 claims description 10
- 230000023556 desulfurization Effects 0.000 claims description 10
- 239000001569 carbon dioxide Substances 0.000 claims description 9
- 229910002092 carbon dioxide Inorganic materials 0.000 claims description 9
- 239000007788 liquid Substances 0.000 claims description 8
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 7
- 229910052784 alkaline earth metal Inorganic materials 0.000 claims description 5
- -1 alkaline earth metal salt Chemical class 0.000 claims description 5
- 150000002927 oxygen compounds Chemical class 0.000 claims description 5
- 239000000126 substance Substances 0.000 claims description 4
- 238000002425 crystallisation Methods 0.000 claims description 3
- 230000008025 crystallization Effects 0.000 claims description 3
- 229910052742 iron Inorganic materials 0.000 claims description 3
- 239000012452 mother liquor Substances 0.000 claims description 3
- MEKOFIRRDATTAG-UHFFFAOYSA-N 2,2,5,8-tetramethyl-3,4-dihydrochromen-6-ol Chemical compound C1CC(C)(C)OC2=C1C(C)=C(O)C=C2C MEKOFIRRDATTAG-UHFFFAOYSA-N 0.000 claims 1
- 238000011065 in-situ storage Methods 0.000 claims 1
- 150000002736 metal compounds Chemical class 0.000 claims 1
- 238000011282 treatment Methods 0.000 description 18
- BRPQOXSCLDDYGP-UHFFFAOYSA-N calcium oxide Chemical compound [O-2].[Ca+2] BRPQOXSCLDDYGP-UHFFFAOYSA-N 0.000 description 17
- 229910001018 Cast iron Inorganic materials 0.000 description 15
- 239000000243 solution Substances 0.000 description 13
- 239000001506 calcium phosphate Substances 0.000 description 12
- 229910000389 calcium phosphate Inorganic materials 0.000 description 12
- 235000011010 calcium phosphates Nutrition 0.000 description 12
- 239000000378 calcium silicate Substances 0.000 description 9
- 229910052918 calcium silicate Inorganic materials 0.000 description 9
- OYACROKNLOSFPA-UHFFFAOYSA-N calcium;dioxido(oxo)silane Chemical compound [Ca+2].[O-][Si]([O-])=O OYACROKNLOSFPA-UHFFFAOYSA-N 0.000 description 9
- 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 9
- 238000001914 filtration Methods 0.000 description 8
- IJKVHSBPTUYDLN-UHFFFAOYSA-N dihydroxy(oxo)silane Chemical compound O[Si](O)=O IJKVHSBPTUYDLN-UHFFFAOYSA-N 0.000 description 7
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 6
- 229910052915 alkaline earth metal silicate Inorganic materials 0.000 description 5
- 238000007670 refining Methods 0.000 description 5
- 239000010959 steel Substances 0.000 description 5
- 229910000831 Steel Inorganic materials 0.000 description 4
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 4
- 229910000316 alkaline earth metal phosphate Inorganic materials 0.000 description 4
- 239000000920 calcium hydroxide Substances 0.000 description 4
- 229910001861 calcium hydroxide Inorganic materials 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 4
- 229910052751 metal Inorganic materials 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 4
- 229910052717 sulfur Inorganic materials 0.000 description 4
- 239000011593 sulfur Substances 0.000 description 4
- 229910000640 Fe alloy Inorganic materials 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 3
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 description 3
- 239000013078 crystal Substances 0.000 description 3
- 238000000227 grinding Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 239000002244 precipitate Substances 0.000 description 3
- 239000000377 silicon dioxide Substances 0.000 description 3
- 235000012239 silicon dioxide Nutrition 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- 239000000725 suspension Substances 0.000 description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 2
- 101150006573 PAN1 gene Proteins 0.000 description 2
- UIIMBOGNXHQVGW-DEQYMQKBSA-M Sodium bicarbonate-14C Chemical compound [Na+].O[14C]([O-])=O UIIMBOGNXHQVGW-DEQYMQKBSA-M 0.000 description 2
- 229910000287 alkaline earth metal oxide Inorganic materials 0.000 description 2
- 150000001342 alkaline earth metals Chemical class 0.000 description 2
- 239000007864 aqueous solution Substances 0.000 description 2
- 150000007514 bases Chemical class 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000007664 blowing Methods 0.000 description 2
- 229910052791 calcium Inorganic materials 0.000 description 2
- 239000011575 calcium Substances 0.000 description 2
- 239000000470 constituent Substances 0.000 description 2
- 239000003337 fertilizer Substances 0.000 description 2
- 238000005188 flotation Methods 0.000 description 2
- 238000002386 leaching Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- RMAQACBXLXPBSY-UHFFFAOYSA-N silicic acid Chemical compound O[Si](O)(O)O RMAQACBXLXPBSY-UHFFFAOYSA-N 0.000 description 2
- BVKZGUZCCUSVTD-UHFFFAOYSA-M Bicarbonate Chemical compound OC([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-M 0.000 description 1
- UXVMQQNJUSDDNG-UHFFFAOYSA-L Calcium chloride Chemical compound [Cl-].[Cl-].[Ca+2] UXVMQQNJUSDDNG-UHFFFAOYSA-L 0.000 description 1
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 1
- 229910001208 Crucible steel Inorganic materials 0.000 description 1
- WQZGKKKJIJFFOK-GASJEMHNSA-N Glucose Natural products OC[C@H]1OC(O)[C@H](O)[C@@H](O)[C@@H]1O WQZGKKKJIJFFOK-GASJEMHNSA-N 0.000 description 1
- KKCBUQHMOMHUOY-UHFFFAOYSA-N Na2O Inorganic materials [O-2].[Na+].[Na+] KKCBUQHMOMHUOY-UHFFFAOYSA-N 0.000 description 1
- 239000004115 Sodium Silicate Substances 0.000 description 1
- 239000012670 alkaline solution Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 239000006286 aqueous extract Substances 0.000 description 1
- 239000012736 aqueous medium Substances 0.000 description 1
- 239000007900 aqueous suspension Substances 0.000 description 1
- 239000005442 atmospheric precipitation Substances 0.000 description 1
- 239000001110 calcium chloride Substances 0.000 description 1
- 229910001628 calcium chloride Inorganic materials 0.000 description 1
- 150000004649 carbonic acid derivatives Chemical class 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 229910052681 coesite Inorganic materials 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 229910052906 cristobalite Inorganic materials 0.000 description 1
- 238000010908 decantation Methods 0.000 description 1
- 238000005261 decarburization Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 239000008121 dextrose Substances 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012851 eutrophication Methods 0.000 description 1
- 239000000706 filtrate Substances 0.000 description 1
- 239000012634 fragment Substances 0.000 description 1
- 238000013467 fragmentation Methods 0.000 description 1
- 238000006062 fragmentation reaction Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 150000004820 halides Chemical class 0.000 description 1
- 231100001261 hazardous Toxicity 0.000 description 1
- 238000005338 heat storage Methods 0.000 description 1
- 229910052595 hematite Inorganic materials 0.000 description 1
- 239000011019 hematite Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 description 1
- 150000004679 hydroxides Chemical class 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 239000002198 insoluble material Substances 0.000 description 1
- LIKBJVNGSGBSGK-UHFFFAOYSA-N iron(3+);oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[Fe+3].[Fe+3] LIKBJVNGSGBSGK-UHFFFAOYSA-N 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
- 239000002609 medium Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- DPTATFGPDCLUTF-UHFFFAOYSA-N phosphanylidyneiron Chemical compound [Fe]#P DPTATFGPDCLUTF-UHFFFAOYSA-N 0.000 description 1
- 239000010452 phosphate Substances 0.000 description 1
- 150000003018 phosphorus compounds Chemical class 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 150000003377 silicon compounds Chemical class 0.000 description 1
- 150000003388 sodium compounds Chemical class 0.000 description 1
- 239000001488 sodium phosphate Substances 0.000 description 1
- 229910000162 sodium phosphate Inorganic materials 0.000 description 1
- 229910052911 sodium silicate Inorganic materials 0.000 description 1
- 239000008247 solid mixture Substances 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 238000003892 spreading Methods 0.000 description 1
- 229910052682 stishovite Inorganic materials 0.000 description 1
- 229910052905 tridymite Inorganic materials 0.000 description 1
- RYFMWSXOAZQYPI-UHFFFAOYSA-K trisodium phosphate Chemical compound [Na+].[Na+].[Na+].[O-]P([O-])([O-])=O RYFMWSXOAZQYPI-UHFFFAOYSA-K 0.000 description 1
- 239000002966 varnish Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01D—COMPOUNDS OF ALKALI METALS, i.e. LITHIUM, SODIUM, POTASSIUM, RUBIDIUM, CAESIUM, OR FRANCIUM
- C01D7/00—Carbonates of sodium, potassium or alkali metals in general
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B3/00—General features in the manufacture of pig-iron
- C21B3/04—Recovery of by-products, e.g. slag
- C21B3/06—Treatment of liquid slag
-
- 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
- C22B7/00—Working up raw materials other than ores, e.g. scrap, to produce non-ferrous metals and compounds thereof; Methods of a general interest or applied to the winning of more than two metals
- C22B7/04—Working-up slag
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B2400/00—Treatment of slags originating from iron or steel processes
- C21B2400/02—Physical or chemical treatment of slags
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Organic Chemistry (AREA)
- Materials Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Metallurgy (AREA)
- Inorganic Chemistry (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Environmental & Geological Engineering (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Manufacture And Refinement Of Metals (AREA)
- Processing Of Solid Wastes (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR8204957A FR2523482A1 (fr) | 1982-03-22 | 1982-03-22 | Procede pour le traitement de scories siderurgiques contenant des composes oxydes du sodium et du phosphore. |
Publications (2)
Publication Number | Publication Date |
---|---|
DE3310329A1 DE3310329A1 (de) | 1983-09-22 |
DE3310329C2 true DE3310329C2 (enrdf_load_stackoverflow) | 1991-04-11 |
Family
ID=9272311
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE19833310329 Granted DE3310329A1 (de) | 1982-03-22 | 1983-03-22 | Verfahren zur behandlung von sauerstoffverbindungen des natriums und des phosphors enthaltenden eisenhuettenschlacken |
Country Status (3)
Country | Link |
---|---|
BE (1) | BE896142A (enrdf_load_stackoverflow) |
DE (1) | DE3310329A1 (enrdf_load_stackoverflow) |
FR (1) | FR2523482A1 (enrdf_load_stackoverflow) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2543975B1 (fr) * | 1983-04-07 | 1989-09-15 | Solvay | Procede pour permettre le rejet d'une scorie siderurgique contenant des composes oxydes du sodium et du phosphore, sur un terril ou un crassier |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5839894B2 (ja) * | 1976-06-08 | 1983-09-02 | 新日本製鐵株式会社 | 水溶性精錬スラグ中のリンおよびケイ素の除去方法 |
JPS538307A (en) * | 1976-07-12 | 1978-01-25 | Nippon Steel Corp | Preparation of alkaline metal carbonate using molten ferro alloy refining slag as raw material |
JPS5339297A (en) * | 1976-09-22 | 1978-04-11 | Nippon Steel Corp | Production of alkali metal carbonate from molten iron alloy refining slag as raw material |
JPS5342200A (en) * | 1976-09-29 | 1978-04-17 | Nippon Steel Corp | Production of alkaline metal carbonate from molten iron alloy refining slag as raw material |
SE426711B (sv) * | 1978-01-26 | 1983-02-07 | Tokuyama Soda Kk | Forfarande for behandling av avfallsslagg for atervinning av alkalikarbonater |
-
1982
- 1982-03-22 FR FR8204957A patent/FR2523482A1/fr active Granted
-
1983
- 1983-03-14 BE BE1/10739A patent/BE896142A/fr not_active IP Right Cessation
- 1983-03-22 DE DE19833310329 patent/DE3310329A1/de active Granted
Also Published As
Publication number | Publication date |
---|---|
DE3310329A1 (de) | 1983-09-22 |
FR2523482A1 (fr) | 1983-09-23 |
BE896142A (fr) | 1983-09-14 |
FR2523482B1 (enrdf_load_stackoverflow) | 1984-05-18 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DE2926482A1 (de) | Verfahren zur gewinnung und verwertung brauchbarer substanzen aus einer metallschmelze | |
EP0235291B1 (de) | Verfahren zur herstellung von vanadiumschlacke | |
DE2731521A1 (de) | Verfahren zur herstellung von ferromolybdaenlegierungen | |
EP0061012B1 (de) | Verfahren zur Herstellung eines Entschwefelungsmittels für Roheisen- und Stahlschmelzen | |
DE2913207C2 (de) | Kalkhaltiges Mittel zum Behandeln von Eisenschmelzen | |
DE2037758C3 (de) | Verfahren zur Herstellung von CaIciumkarbid zur Entschwefelung von Metallschmelzen | |
DE2716840A1 (de) | Behandelte basische konverterschlacke und verfahren zur behandlung von basischer konverterschlacke | |
DE3310329C2 (enrdf_load_stackoverflow) | ||
DE2554405A1 (de) | Verfahren zur gewinnung von reinem giessereisand | |
EP0031552B1 (de) | Entschwefelungsmittel und Verfahren zu seiner Herstellung | |
EP0019086A2 (de) | Verfahren zur Herstellung von Entschweflungsmitteln für Roheisen- oder Stahlschmelzen | |
EP0582970B1 (de) | Entschwefelungsmittel für Roheisen- und Gusseisenschmelzen sowie Verfahren zur Entschwefelung | |
DE60100659T2 (de) | Verfahren zur behandlung von elektroöfenschlacken | |
DE19747896B4 (de) | Verfahren zum Valorisieren und zum eventuellen hierfür Bearbeiten von Pfannenschlacken | |
DE2303668C3 (de) | Zubereitungen zur Behandlung von geschmolzenem Stahl | |
DE2346778A1 (de) | Flussmittel zum giessen von stahl | |
DD297919A5 (de) | Abgas-entschwefelungsverfahren | |
DE485007C (de) | Verfahren zur Herstellung von reinem weissen und fein verteilten Barium- oder Calciumsulfat | |
DE202014100884U1 (de) | Schlackekonditionierer für die Entschwefelung in der Sekundärmetallurgie von Stahl | |
DE2952686A1 (de) | Verfahren zur herstellung von entschwefelungsmitteln fuer roheisen- oder stahlschmelzen | |
DE2656812B2 (de) | Verfahren zum kontinuierlichen Vorfrischen einer zur Stahlherstellung bestimmten Roheisenschmelze | |
AT313020B (de) | Flußmittel zum Schweißen von hochlegierten austenitischen Stählen und Verfahren zu seiner Herstellung | |
EP0061011B1 (de) | Verfahren zur Herstellung von Entschwefelungsmitteln für Roheisen- oder Stahlschmelzen | |
EP0070912A1 (de) | Verfahren zur Verminderung des Eisengehaltes von bei der Entschwefelung von Roheisen entstehenden CaO-reichen Schlacken | |
DE3590051T (de) | Vorrichtung zum Entfernen der in einer aus einem Hochofen abgestochenen Roheisenschmelze enthaltenen Verunreinigungen |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
8110 | Request for examination paragraph 44 | ||
D2 | Grant after examination | ||
8364 | No opposition during term of opposition | ||
8339 | Ceased/non-payment of the annual fee |