DE455182C - Process for the production of pure iron oxide, preferably for iron and steel manufacture - Google Patents
Process for the production of pure iron oxide, preferably for iron and steel manufactureInfo
- Publication number
- DE455182C DE455182C DEM79472D DEM0079472D DE455182C DE 455182 C DE455182 C DE 455182C DE M79472 D DEM79472 D DE M79472D DE M0079472 D DEM0079472 D DE M0079472D DE 455182 C DE455182 C DE 455182C
- Authority
- DE
- Germany
- Prior art keywords
- iron
- iron oxide
- production
- pure
- steel manufacture
- 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
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 title claims description 30
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 title claims description 28
- 229910052742 iron Inorganic materials 0.000 title claims description 15
- 238000000034 method Methods 0.000 title claims description 9
- 229910000831 Steel Inorganic materials 0.000 title claims description 8
- 238000004519 manufacturing process Methods 0.000 title claims description 8
- 239000010959 steel Substances 0.000 title claims description 8
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims description 6
- 229910044991 metal oxide Inorganic materials 0.000 claims description 3
- 150000004706 metal oxides Chemical class 0.000 claims description 3
- 239000003513 alkali Substances 0.000 claims description 2
- 229910000358 iron sulfate Inorganic materials 0.000 claims description 2
- BAUYGSIQEAFULO-UHFFFAOYSA-L iron(2+) sulfate (anhydrous) Chemical compound [Fe+2].[O-]S([O-])(=O)=O BAUYGSIQEAFULO-UHFFFAOYSA-L 0.000 claims description 2
- 150000003839 salts Chemical class 0.000 claims description 2
- 239000000126 substance Substances 0.000 claims description 2
- RMAQACBXLXPBSY-UHFFFAOYSA-N silicic acid Chemical compound O[Si](O)(O)O RMAQACBXLXPBSY-UHFFFAOYSA-N 0.000 claims 2
- 235000012239 silicon dioxide Nutrition 0.000 claims 2
- 238000001556 precipitation Methods 0.000 claims 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 8
- 238000000605 extraction Methods 0.000 description 4
- 239000000377 silicon dioxide Substances 0.000 description 4
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- WNROFYMDJYEPJX-UHFFFAOYSA-K aluminium hydroxide Chemical compound [OH-].[OH-].[OH-].[Al+3] WNROFYMDJYEPJX-UHFFFAOYSA-K 0.000 description 2
- ANBBXQWFNXMHLD-UHFFFAOYSA-N aluminum;sodium;oxygen(2-) Chemical compound [O-2].[O-2].[Na+].[Al+3] ANBBXQWFNXMHLD-UHFFFAOYSA-N 0.000 description 2
- 239000006227 byproduct Substances 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 229910001388 sodium aluminate Inorganic materials 0.000 description 2
- CMZUMMUJMWNLFH-UHFFFAOYSA-N sodium metavanadate Chemical compound [Na+].[O-][V](=O)=O CMZUMMUJMWNLFH-UHFFFAOYSA-N 0.000 description 2
- 239000001488 sodium phosphate Substances 0.000 description 2
- 229910000162 sodium phosphate Inorganic materials 0.000 description 2
- RYFMWSXOAZQYPI-UHFFFAOYSA-K trisodium phosphate Chemical compound [Na+].[Na+].[Na+].[O-]P([O-])([O-])=O RYFMWSXOAZQYPI-UHFFFAOYSA-K 0.000 description 2
- 229910000166 zirconium phosphate Inorganic materials 0.000 description 2
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 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
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 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
- 239000007864 aqueous solution Substances 0.000 description 1
- 238000001354 calcination Methods 0.000 description 1
- 235000011089 carbon dioxide Nutrition 0.000 description 1
- 238000001311 chemical methods and process Methods 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000001143 conditioned effect Effects 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 229910052748 manganese Inorganic materials 0.000 description 1
- 239000011572 manganese Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000010309 melting process Methods 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 229940072033 potash Drugs 0.000 description 1
- BWHMMNNQKKPAPP-UHFFFAOYSA-L potassium carbonate Substances [K+].[K+].[O-]C([O-])=O BWHMMNNQKKPAPP-UHFFFAOYSA-L 0.000 description 1
- 235000015320 potassium carbonate Nutrition 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000000376 reactant Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 229910000029 sodium carbonate Inorganic materials 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 229910052720 vanadium Inorganic materials 0.000 description 1
- LEONUFNNVUYDNQ-UHFFFAOYSA-N vanadium atom Chemical compound [V] LEONUFNNVUYDNQ-UHFFFAOYSA-N 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- 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
- C22B1/00—Preliminary treatment of ores or scrap
- C22B1/14—Agglomerating; Briquetting; Binding; Granulating
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
- C01G49/00—Compounds of iron
- C01G49/02—Oxides; Hydroxides
- C01G49/06—Ferric oxide [Fe2O3]
-
- 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
- C22B1/00—Preliminary treatment of ores or scrap
- C22B1/02—Roasting processes
-
- 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
- C22B1/00—Preliminary treatment of ores or scrap
- C22B1/11—Removing sulfur, phosphorus or arsenic other than by roasting
-
- 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
- C22B3/00—Extraction of metal compounds from ores or concentrates by wet processes
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Organic Chemistry (AREA)
- Manufacturing & Machinery (AREA)
- Geology (AREA)
- Geochemistry & Mineralogy (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Environmental & Geological Engineering (AREA)
- Inorganic Chemistry (AREA)
- Manufacture And Refinement Of Metals (AREA)
Description
Verfahren zur Erzeugung von reinem Eisenoxyd, vorzugsweise für die Eisen- und Stahlherstellung. Die Erfindung betrifft die Erzeugung von Eisen aus Eisenerzen und besonders solchen, die so viel Kieselsäure und andere N ichteisenbestandteile haben, daß sie nach den bekannten Verfahren nicht mit Nutzen auf Eisen und Stahl verarbeitbar sind. Nach dem neuen Verfahren aber können diese in großen Mengen vorkommenden Erze auf Eisen und Stahl von großer Reinheit verarbeitet werden unter gleichzeitiger Gewinnung wertvoller reiner Nebenerzeugnisse wie Tonerde, Pottasche, Phosphor, Vanadium, Nickel, Mangan und selbst Kieselsäure. Die Einzelheiten des Verfahrens unterscheiden sich etwas je nach den Nichteisenbestandteilen, die im Erz in genügender Menge vorhanden sind, um ihre Gewinnung erwünscht erscheinen zu lassen.Process for the production of pure iron oxide, preferably for the Iron and steel manufacture. The invention relates to the production of iron from Iron ores and especially those that contain so much silica and other non-ferrous components have that by the known methods they are not useful on iron and steel are processable. According to the new process, however, these can occur in large quantities Ores on iron and steel of great purity are processed at the same time Extraction of valuable pure by-products such as clay, potash, phosphorus, vanadium, Nickel, manganese and even silica. The details of the procedure differ depending on the non-ferrous constituents that are present in sufficient quantities in the ore are to make their extraction appear desirable.
Es besteht ein dauernd wachsender Bedarf nach sehr reinem Eisen 'und Stahl. Die reineren Eisenerze werden jedoch immer seltener. Das neue Verfahren trägt dem Rechnung, indem es die Reinigung des Eisens vor dem Schmelzen durchführt, und zwar durch einen chemischen Prozeß, der in großem Maßstabe durchführbar ist, weil die Reaktionsstoffe zu erneuter Benutzung oder zum Verkauf wiedergewonnen werden. Außerdem verringern sich durch Gewinnung anderer metallischer Bestandteile als Nebenerzeugnisse die Herstellungskosten des Eisens.There is an ever increasing need for very pure iron and iron Stole. However, the purer iron ores are becoming increasingly rare. The new procedure bears the account by performing the cleaning of the iron before melting, and through a chemical process that can be carried out on a large scale, because the reactants are recovered for reuse or sale. In addition, the extraction of metallic components other than by-products decreases the manufacturing cost of iron.
Es ist nun bereits vorgeschlagen worden, zur Erzeugung von reinem Eisenoxyd die Erze mit Schwefelsäure zu behandeln, die Kieselsäure abzuscheiden und das in Lösung gehende Eisensulfat zu entwässern und zu zersetzen.It has now been proposed to produce pure Iron oxide to treat the ores with sulfuric acid, to separate out the silica and to dehydrate and decompose the iron sulfate going into solution.
Hiervon ausgehend- bezweckt das neue Verfahren die Trennung des Eisenoxydes von den anderen durch die Schwefelsäure gelösten Metalloxyden. Dies geschieht dadurch, daß das von Kieselsäure befreite Eisenoxyd mit einem Alkali wie N a2 Co, kalziniert und darauf mit Wasser ausgelaugt wird, wobei die anderen Metalloxyde von dem unlöslichen Eisenoxyd in Form wasserlöslicher Salze geschieden werden.Based on this, the new process aims to separate the iron oxide of the other metal oxides dissolved by the sulfuric acid. This is done by that the iron oxide freed from silica is calcined with an alkali such as N a2 Co and then leached with water, the other metal oxides from being insoluble Iron oxide can be separated in the form of water-soluble salts.
Die nach dem Kalzinieren sich ergebende wässerige Lösung wird zwecks Trennung der metallischen Bestandteile digeriert, das Eisenoxyd setzt sich in fester Form zu Boden, während Natriumaluminat, Natriumphosphat und Natriumvanadat in Lösung bleiben.The resulting aqueous solution after calcination is used for the purpose of Separation of the metallic components digests, the iron oxide settles in solid Form to soil while sodium aluminate, sodium phosphate and sodium vanadate are in solution stay.
Das so erhaltene Eisenoxyd ist frei von allen Verunreinigungen, so daß daraus mittels Reduktion durch die üblichen Schmelzverfahren Eisen oder Stahl gewinnen kann, die wegen ihrer hohen Reinheit dem handelsüblichen Eisen überlegen sind.The iron oxide obtained in this way is free of all impurities, see above that from it by means of reduction by the usual melting process iron or steel, which, because of its high purity, is comparable to commercially available iron are superior.
Dieses Eisenoxyd hat eine äußerst feine Form. Es kann auch in gesintertem Zustande oder in Form halbgeschmolzener Klumpen von beträchtlicher Größe j e nach Arbeitstemperatur anfallen. Vorzugsweise gewinnt man es in fein verteiltem Zustande als Pulver von solcher Feinheit, daß der größere Teil durch ein Leinentuch hindurchgeht. Dieses Eisenoxyd wird unmittelbar im elektrischen Ofen zu Stahl verarbeitet, da in Gebläseöfen oder sonstigen Ofen, in denen ein starker Zug herrscht, ein Teil des Gutes verlorengehen würde. Die Reduktion des Eisenoxyds kann auch in einem Drehofen erfolgen, an den sich ein elektrischer Ofen zum Schmelzen des reduzierten Gutes anschließt, oder es kann in einem elektrischen Ofen reduziert und geschmolzen werden.This iron oxide has an extremely fine shape. It can also be sintered Conditioned or in the form of semi-molten lumps of considerable size, depending on Working temperature. It is preferably obtained in a finely divided state as a powder of such fineness that the greater part passes through a linen cloth. This iron oxide is processed into steel directly in the electric furnace, since in fan ovens or other ovens where there is a strong draft, a part of the good would be lost. The iron oxide can also be reduced in a rotary kiln take place, to which an electric furnace for melting the reduced material or it can be reduced and melted in an electric furnace.
Das erzielte Ferrioxy d kann aber auch in den bisherigen Eisen- und Stahlwerken als Ersatz der gegenwärtig verarbeiteten armen Erze bzw. als Zusatz verwendet werden. Alsdann ist es besser, das Oxyd bei der Gewinnung sintern zu lassen.The achieved Ferrioxy d can also be used in the previous iron and Steel works as a replacement for the poor ores currently being processed or as an additive be used. Then it is better to let the oxide sinter during extraction.
Die Lösung, die hauptsächlich Natriumaluminat, N atriumphosphat und Natriumvanadat enthält, wird auf diese Stoffe verarbeitet. Durch Einleiten von Kohlensäuregas wird das Aluminium als Aluminiumhydroxyd gefällt, wobei das Co.gas sich mit dem Natrium zu Natriumkarbonat verbindet. So wird der größte Teil der Soda zur erneuten Benutzung wiedergewonnen. Das Aluminiumhydroxyd kann durch Erhitzung in einem Drehrohrofen in reine Tonerde verwandelt werden, die in der üblichen Weise elektrolytisch zu reinem Aluminium reduzierbar ist.The solution that mainly contains sodium aluminate, sodium phosphate and Containing sodium vanadate is processed onto these substances. By introducing carbonic acid gas the aluminum is precipitated as aluminum hydroxide, whereby the co.gas mixes with the Sodium combines to form sodium carbonate. So most of the soda is used again Usage regained. The aluminum hydroxide can be heated in a rotary kiln can be transformed into pure alumina, which is electrolytically too in the usual way pure aluminum is reducible.
Claims (1)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US455182XA | 1922-03-03 | 1922-03-03 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE455182C true DE455182C (en) | 1928-01-25 |
Family
ID=21938355
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DEM79472D Expired DE455182C (en) | 1922-03-03 | 1922-11-02 | Process for the production of pure iron oxide, preferably for iron and steel manufacture |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE455182C (en) |
-
1922
- 1922-11-02 DE DEM79472D patent/DE455182C/en not_active Expired
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