FR2501238A1 - PROCESS FOR THE PREPARATION OF A FUSION METAL CONSISTING OF MANGANESE AND IRON - Google Patents
PROCESS FOR THE PREPARATION OF A FUSION METAL CONSISTING OF MANGANESE AND IRON Download PDFInfo
- Publication number
- FR2501238A1 FR2501238A1 FR8121825A FR8121825A FR2501238A1 FR 2501238 A1 FR2501238 A1 FR 2501238A1 FR 8121825 A FR8121825 A FR 8121825A FR 8121825 A FR8121825 A FR 8121825A FR 2501238 A1 FR2501238 A1 FR 2501238A1
- Authority
- FR
- France
- Prior art keywords
- manganese
- iron
- metal
- zone
- thermal energy
- 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.)
- Granted
Links
- 229910052751 metal Inorganic materials 0.000 title claims abstract description 22
- 239000002184 metal Substances 0.000 title claims abstract description 22
- 229910052748 manganese Inorganic materials 0.000 title claims abstract description 20
- 239000011572 manganese Substances 0.000 title claims abstract description 20
- 238000000034 method Methods 0.000 title claims abstract description 17
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 title claims abstract description 16
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 title claims abstract description 12
- 229910052742 iron Inorganic materials 0.000 title claims abstract description 6
- 230000004927 fusion Effects 0.000 title abstract description 5
- AMWRITDGCCNYAT-UHFFFAOYSA-L hydroxy(oxo)manganese;manganese Chemical compound [Mn].O[Mn]=O.O[Mn]=O AMWRITDGCCNYAT-UHFFFAOYSA-L 0.000 claims abstract description 10
- 239000003638 chemical reducing agent Substances 0.000 claims abstract description 8
- 239000000463 material Substances 0.000 claims abstract description 8
- 239000003245 coal Substances 0.000 claims abstract description 7
- 229930195733 hydrocarbon Natural products 0.000 claims abstract description 3
- 150000002430 hydrocarbons Chemical class 0.000 claims abstract description 3
- 239000007787 solid Substances 0.000 claims abstract description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 6
- 229910052710 silicon Inorganic materials 0.000 claims description 5
- 239000010703 silicon Substances 0.000 claims description 4
- 238000002844 melting Methods 0.000 claims description 3
- 230000008018 melting Effects 0.000 claims description 3
- 235000012239 silicon dioxide Nutrition 0.000 claims description 3
- 239000000377 silicon dioxide Substances 0.000 claims description 2
- 230000002829 reductive effect Effects 0.000 claims 1
- 239000002002 slurry Substances 0.000 claims 1
- 229910000616 Ferromanganese Inorganic materials 0.000 abstract description 4
- DALUDRGQOYMVLD-UHFFFAOYSA-N iron manganese Chemical compound [Mn].[Fe] DALUDRGQOYMVLD-UHFFFAOYSA-N 0.000 abstract description 4
- 238000004519 manufacturing process Methods 0.000 abstract 1
- 238000005272 metallurgy Methods 0.000 abstract 1
- 239000002893 slag Substances 0.000 description 7
- 239000002994 raw material Substances 0.000 description 5
- 239000000571 coke Substances 0.000 description 4
- 239000007789 gas Substances 0.000 description 4
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 229910002091 carbon monoxide Inorganic materials 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- PPNAOCWZXJOHFK-UHFFFAOYSA-N manganese(2+);oxygen(2-) Chemical class [O-2].[Mn+2] PPNAOCWZXJOHFK-UHFFFAOYSA-N 0.000 description 2
- 150000002739 metals Chemical class 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 1
- 229910015136 FeMn Inorganic materials 0.000 description 1
- 229910000519 Ferrosilicon Inorganic materials 0.000 description 1
- 235000011941 Tilia x europaea Nutrition 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 229910052681 coesite Inorganic materials 0.000 description 1
- 238000010924 continuous production Methods 0.000 description 1
- 229910052906 cristobalite Inorganic materials 0.000 description 1
- 235000005911 diet Nutrition 0.000 description 1
- 230000000378 dietary effect Effects 0.000 description 1
- 239000003546 flue gas Substances 0.000 description 1
- 239000012634 fragment Substances 0.000 description 1
- 239000004571 lime Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 235000011837 pasties Nutrition 0.000 description 1
- 239000010453 quartz Substances 0.000 description 1
- 229910052814 silicon oxide Inorganic materials 0.000 description 1
- 239000007790 solid phase Substances 0.000 description 1
- 229910052682 stishovite Inorganic materials 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 229910052905 tridymite Inorganic materials 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B13/00—Making spongy iron or liquid steel, by direct processes
- C21B13/12—Making spongy iron or liquid steel, by direct processes in electric furnaces
- C21B13/125—By using plasma
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C22/00—Alloys based on manganese
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B13/00—Making spongy iron or liquid steel, by direct processes
- C21B13/0006—Making spongy iron or liquid steel, by direct processes obtaining iron or steel in a molten state
- C21B13/0013—Making spongy iron or liquid steel, by direct processes obtaining iron or steel in a molten state introduction of iron oxide into a bath of molten iron containing a carbon reductant
- C21B13/002—Reduction of iron ores by passing through a heated column of carbon
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B13/00—Making spongy iron or liquid steel, by direct processes
- C21B13/006—Starting from ores containing non ferrous metallic oxides
-
- 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
- C22B4/00—Electrothermal treatment of ores or metallurgical products for obtaining metals or alloys
- C22B4/005—Electrothermal treatment of ores or metallurgical products for obtaining metals or alloys using plasma jets
-
- 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
- C22B5/00—General methods of reducing to metals
- C22B5/02—Dry methods smelting of sulfides or formation of mattes
- C22B5/10—Dry methods smelting of sulfides or formation of mattes by solid carbonaceous reducing agents
-
- 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
- Y02P10/10—Reduction of greenhouse gas [GHG] emissions
- Y02P10/134—Reduction of greenhouse gas [GHG] emissions by avoiding CO2, e.g. using hydrogen
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Plasma & Fusion (AREA)
- Environmental & Geological Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Manufacture And Refinement Of Metals (AREA)
- Manufacture Of Metal Powder And Suspensions Thereof (AREA)
- Carbon Steel Or Casting Steel Manufacturing (AREA)
- Treatment Of Steel In Its Molten State (AREA)
- Refinement Of Pig-Iron, Manufacture Of Cast Iron, And Steel Manufacture Other Than In Revolving Furnaces (AREA)
- Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)
Abstract
L'INVENTION CONCERNE LA METALLURGIE. ELLE A POUR OBJET UN PROCEDE POUR ELABORER UN METAL EN FUSION CONSISTANT PRINCIPALEMENT EN MANGANESE ET EN FER. LE PROCEDE CONSISTE A INJECTER UNE MATIERE PULVERULENTE CONTENANT L'OXYDE DE MANGANESE DIRECTEMENT DANS UNE ZONE DE FUSION REDUCTRICE EN MEME TEMPS QUE DU CHARBON ETOU DES HYDROCARBURES SOUS FORME PULVERULENTE. LA ZONE FUSION REDUCTRICE EST ENTRETENUE DE MANIERE CONTINUE PAR L'APPORT D'ENERGIE THERMIQUE DANS UNE CUVE REMPLIE D'UN REDUCTEUR SOLIDE. CE PROCEDE EST PREFERE POUR ELABORER LE FERROMANGANESE ET LE FERROSILICIUM AU MANGANESE.THE INVENTION CONCERNS METALLURGY. ITS OBJECT A PROCESS FOR PREPARING A FUSION METAL CONSISTING MAINLY OF MANGANESE AND IRON. THE PROCESS CONSISTS OF INJECTING A PULVERULENT MATERIAL CONTAINING MANGANESE OXIDE DIRECTLY INTO A REDUCING FUSION ZONE AT THE SAME TIME WITH COAL AND OR HYDROCARBONS IN PULVERULENT FORM. THE REDUCING FUSION ZONE IS CONTINUOUSLY MAINTAINED BY THE SUPPLY OF THERMAL ENERGY IN A TANK FILLED WITH A SOLID REDUCER. THIS PROCESS IS PREFERRED FOR PREPARING FERROMANGANESE AND FERROSILICIUM WITH MANGANESE.
Description
250123 250123
La présente invention concerne un procédé The present invention relates to a method for
d'élaboration un métal en fusion consistant principa- a molten metal consisting mainly of
lement en manganèse et en fer, bien que le métal en in manganese and iron, although the metal
fusion puisse contenir du silicium.fusion may contain silicon.
Dans certains procédés continus pour éla- borer par exemple,du ferromanganèse dans un four Thysland-Mohle, l'alimentation en matière première est rendue difficile parce que tant la source de manganèse que le réducteur doivent se présenter en fragments. Les fours utilisés dans ces procédés connus sont également difficiles à rendre étanches au gaz et exposent ainsi In certain continuous processes for developing, for example, ferromanganese in a Thysland-Mohle furnace, the supply of raw material is made difficult because both the manganese source and the reducing agent must be in fragments. The furnaces used in these known processes are also difficult to render gas-tight and thus expose
à d'appréciables difficultés pour ce qui est de l'uti- appreciable difficulties with regard to the use of
lisation rationnelle de l'énergie véhiculée par les gaz brûlés et de plus la conduite des procédés connus est rendue difficile par la nécessité des adaptations rationalization of the energy conveyed by the flue gases and furthermore the conduct of the known processes is made difficult by the necessity of adaptations
requises pour qu'ils satisfassent aux règlements éco- required to comply with the economic regulations
logiques en vigueur.in force.
Suivant un autre procédé connu,à savoir le procédé PLASMASMELTO, qui est appliqué à l'élaboration de According to another known process, namely the PLASMASMELTO process, which is applied to the elaboration of
métaux à partir de leurs oxydes, la réduction est exé- metals from their oxides, the reduction is
cutée en deux stades,c'est-à-dire par réduction pré- cut in two stages, that is to say by reduction
liminaire en phase solide, puis par réduction finale threshold in solid phase, then by final reduction
conjointement avec la fusion.together with the merger.
Il est toutefois apparu que ce procédé connu, lorsqu'il est appliqué à une matière première contenant de l'oxyde de manganèse, ne procure aucune économie d'énergie appréciable en conséquence de l'exécution However, it has been found that this known method, when applied to a raw material containing manganese oxide, provides no appreciable energy savings as a result of the execution.
du stade de réduction préliminaire;tandis que des dif- stage of preliminary reduction, while differences
ficultés notables résultent de la tendance des oxydes de manganèse à devenir pâteux aux températures qui conviennent pour la réduction préliminaire. En outre, de nombreuses matières qui contiennent des oxydes de manganèse ont une dimension particulaire qui est trop fine pour permettre le traitement de ces matières au Significant ficulty results from the tendency of manganese oxides to become pasty at suitable temperatures for preliminary reduction. In addition, many materials which contain manganese oxides have a particle size which is too fine to allow the treatment of these materials at
cours des stades de réduction préliminaires connus. during the preliminary stages of reduction known.
La Demanderesse a découvert à présent avec The Applicant has now discovered with
surprise que les inconvénients et les difficultés ci- surprise that the disadvantages and difficulties
dessus peuvent être résolus en appliquant un procédé above can be solved by applying a method
conforme à l'invention.according to the invention.
L'invention a pour objet un procédé d'éla- The subject of the invention is a process for
boration d'un métal en fusion qui consiste principale- melting metal which consists mainly of
ment en manganèse et en fer, suivant lequel, par stades, on injecte une matière pulvérulente contenant l'oxyde de manganèse directement dans une zone de fusion réductrice, en même temps que du charbon et/ou des hydrocarbures, sous forme pulvérulente, cette zone étant entretenue de manière continue, avec l'apport in manganese and iron, in which, in stages, a pulverulent material containing the manganese oxide is injected directly into a reducing melting zone, together with coal and / or hydrocarbons, in pulverulent form, this zone being maintained on a continuous basis, with
d 'énergie thermique, dans une cuve remplie de réduc- of thermal energy, in a tank filled with
teur solide. Le métal produit peut contenir du sili- solid carrier. The metal produced may contain silicon
cium. Dans une forme de réalisation avantageuse de l'invention pour l'élaboration de métaux en fusion contenant du manganèse ayant des teneurs en silicium cium. In an advantageous embodiment of the invention for the preparation of molten metals containing manganese having silicon contents
de plus de 5%, une matière pulvérulente riche en di- more than 5%, a powdery substance rich in di-
oxyde de silicium est ajoutée à la matière pulvérulen- silicon oxide is added to the pulverulent material
te contenant les oxydes de manganèse. containing the oxides of manganese.
L'apportcontinu d'énergie thermique à 'la zone de réduction peut avantageusement être réalisé The continuous supply of thermal energy to the reduction zone can advantageously be realized
à l'aide d'un générateur de plasma. using a plasma generator.
L'invention est décrite plus en détail ci- The invention is described in more detail below.
après avec référence aux exemples suivants. after with reference to the following examples.
EXEMPLE 1 -EXAMPLE 1
Elaboration du ferromanganèse Au cours de cette expérience, on utilise un Development of ferromanganese During this experiment, we use a
mélange pulvérulent comprenant du minerai de manga- powder mixture comprising manganese ore
nèse et des formateurs de laitier,constituant une ma- nese and slag trainers, constituting a
tière première qui contient environ 48% de manganèse first, which contains about 48% of manganese
et 7% de fer. On injecte cette matière première di- and 7% iron. This dietary raw material is injected
rectement dans une zone de réaction constituée à la partie inférieure d'une cuve remplie de coke montée devant un générateur de plasma alimentant cette zone in a reaction zone formed at the bottom of a tank filled with coke mounted in front of a plasma generator supplying this zone
de réaction en énergie thermique.reaction in thermal energy.
On injecte dans la cuve, avec la matière première ci-dessus, un réducteur qui est constitué par environ 400 kg de charbon pulvérisé par tonne de FeMn, cette quantité de réducteur correspondant largement A reducing agent is injected into the tank, with the above raw material, which consists of about 400 kg of pulverized coal per tonne of FeMn, this quantity of reducing agent corresponding largely to
aux deux tiers de la quantité totale de réducteur né- two-thirds of the total quantity of reducing agent
cessaire. Le reste du réducteur consiste en la colonne de coke dans la cuve. On obtient au sortir de la cuve un métal qui necessary. The rest of the reducer consists of the coke column in the tank. We get out of the tank a metal that
contient 79,1% de Mn et 6,0% de C, ce qui corres- contains 79.1% Mn and 6.0% C, which corresponds to
pond à un rendement en Mn d'environ 87%. Le laitier a une alcalinité de 1, 3 à 1,6 et contient 12 à 14% de Mn. La quantité de laitier est de juste 500 kg at a yield of about 87%. The slag has an alkalinity of 1.3 to 1.6 and contains 12 to 14% Mn. The quantity of slag is just 500 kg
par tonne de métal.per ton of metal.
Le procédé donne aussi environ 1000 m3 de gaz par tonne de métal (aux conditions normales de température et de pression) et dont la composition est The process also yields about 1000 m3 of gas per tonne of metal (under normal temperature and pressure conditions) and whose composition is
d'environ 25% de H2 et 75% de CO.about 25% H2 and 75% CO.
La consommation d'énergie thermique est de 3000 kWh par tonne, la température du gaz à la sortie est d'environ 12000C et le métal et le laitier soutirés The thermal energy consumption is 3000 kWh per ton, the temperature of the gas at the outlet is about 12000C and the metal and the slag drawn off
ont une température d'environ 1430'C. have a temperature of about 1430 ° C.
Il ressort de manière évidente de l'exemple ci-dessus que du ferromanganèse peut être produit It is evident from the above example that ferromanganese can be produced
sans difficulté par un procédé de l'invention. without difficulty by a method of the invention.
EXEMPLE 2 -EXAMPLE 2
Elaboration d'un ferrosilicium au manganèse Elaboration of a manganese ferrosilicon
Pour la présente expérience, la matière pre- For the present experiment, the subject matter
mière pulvérulente consiste en un mélange de minerai de manganèse, de quartz et de chaux contenant environ powder is a mixture of manganese ore, quartz and lime containing approximately
% de Mn et 38% de SiO2.% Mn and 38% SiO2.
On injecte la matière première,sans réduc- The raw material is injected, without reduction
tion préliminaire, directement dans la zone de réac- preliminary assessment, directly in the reaction zone
tion de la même façon que dans l'exemple l,en même in the same way as in example 1, at the same time
temps que du charbon pulvérisé.only pulverized coal.
Le charbon pulvérisé est le réducteur prin- The pulverized coal is the main reductant
cipal. On effectue une réduction partielle et une carburation peu importantes du métal par le coke de cipal. A slight partial reduction and carburization of the metal by the coke of
la colonne de coke dans la cuve. Au cours de l'expé- the column of coke in the tank. During the experience
rience, on consomme environ 550 kg de charbon par tonne In fact, about 550 kg of coal per tonne is consumed
de métal,ce qui correspond à plus de 80% de la quanti- of metal, which corresponds to more than 80% of the
té totale nécessaire.total head needed.
Le métal soutiré de la cuve contient 65% de Mn, 18% de Si et 1,5% de C. Le rendement en manganèse est donc d'environ 85%. La quantité de laitier est de 560 kg par tonne de métal et le laitier contient environ 18% de MnO. Simultanément, on obtient aussi 1300 m3 de gaz par tonne demétal (aux conditions normales de température et de pression) et dont la composition est The metal withdrawn from the tank contains 65% Mn, 18% Si and 1.5% C. The yield of manganese is therefore about 85%. The quantity of slag is 560 kg per tonne of metal and the slag contains about 18% MnO. At the same time, 1300 m3 of gas per tonne of metal (under normal conditions of temperature and pressure) is also obtained.
d'environ 30% de H2 et 70% de CO.about 30% H2 and 70% CO.
La consommation d'énergie est de 4500 kWh. The energy consumption is 4500 kWh.
La température du gaz produit est d'environ 1300 C. The temperature of the product gas is about 1300 C.
Le métal et le laitier soutirés ont une température The metal and the slag drawn off have a temperature
d'environ 1550 C.about 1550 C.
-5--5-
Claims (4)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ZA00811540A ZA811540B (en) | 1981-03-09 | 1981-03-09 | Method of producing molten metal consisting mainly of manganese and iron |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2501238A1 true FR2501238A1 (en) | 1982-09-10 |
| FR2501238B1 FR2501238B1 (en) | 1986-04-18 |
Family
ID=25575250
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR8121825A Expired FR2501238B1 (en) | 1981-03-09 | 1981-11-20 | PROCESS FOR THE PREPARATION OF A FUSED METAL CONSISTING Mainly OF MANGANESE AND IRON |
Country Status (24)
| Country | Link |
|---|---|
| JP (1) | JPS57149438A (en) |
| KR (1) | KR830007865A (en) |
| AT (1) | AT385518B (en) |
| AU (1) | AU541839B2 (en) |
| BE (1) | BE891176A (en) |
| BR (1) | BR8200425A (en) |
| CA (1) | CA1174855A (en) |
| CS (1) | CS226043B2 (en) |
| DD (1) | DD202185A5 (en) |
| DE (1) | DE3141926C2 (en) |
| ES (1) | ES506883A0 (en) |
| FI (1) | FI71351C (en) |
| FR (1) | FR2501238B1 (en) |
| GB (1) | GB2094354B (en) |
| IN (1) | IN155076B (en) |
| IT (1) | IT1140286B (en) |
| MX (1) | MX157301A (en) |
| OA (1) | OA06996A (en) |
| PH (1) | PH19400A (en) |
| PL (1) | PL234266A1 (en) |
| SE (1) | SE8105120L (en) |
| SU (1) | SU1069632A3 (en) |
| ZA (1) | ZA811540B (en) |
| ZW (1) | ZW27981A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2158782C1 (en) * | 2000-03-10 | 2000-11-10 | ЗАО "Шунгитовые технологии" | Charge for smelting of ferromagnese |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SE436124B (en) * | 1982-09-08 | 1984-11-12 | Skf Steel Eng Ab | SET TO MAKE PROCESS |
| SE453304B (en) * | 1984-10-19 | 1988-01-25 | Skf Steel Eng Ab | KIT FOR MANUFACTURE OF METALS AND / OR GENERATION OF BATTLE FROM OXIDE ORE |
| GB9108778D0 (en) * | 1991-04-24 | 1991-06-12 | British Steel Plc | Production of ferromanganese |
| RU2044088C1 (en) * | 1994-04-15 | 1995-09-20 | Акционерное общество закрытого типа "ККИП" | Method to extract manganese from manganese-containing ore |
| RU2449038C1 (en) * | 2010-09-23 | 2012-04-27 | УЧРЕЖДЕНИЕ РОССИЙСКОЙ АКАДЕМИИ НАУК ИНСТИТУТ МЕТАЛЛУРГИИ УРАЛЬСКОГО ОТДЕЛЕНИЯ РАН (ИМЕТ УрО РАН) | Charge for smelting ferrosilicomanganese |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE295549C (en) * | ||||
| FR2215478A1 (en) * | 1973-01-26 | 1974-08-23 | Stiftelsen Metallurg Forskni |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1452850A (en) * | 1965-08-04 | 1966-04-15 | Siderurgie Fse Inst Rech | Electric furnace ore reduction process |
| US4072504A (en) * | 1973-01-26 | 1978-02-07 | Aktiebolaget Svenska Kullagerfabriken | Method of producing metal from metal oxides |
-
1981
- 1981-03-09 ZA ZA00811540A patent/ZA811540B/en unknown
- 1981-05-11 IN IN491/CAL/81A patent/IN155076B/en unknown
- 1981-06-02 PH PH25707A patent/PH19400A/en unknown
- 1981-08-31 SE SE8105120A patent/SE8105120L/en not_active Application Discontinuation
- 1981-10-19 GB GB8131411A patent/GB2094354B/en not_active Expired
- 1981-10-22 DE DE3141926A patent/DE3141926C2/en not_active Expired
- 1981-11-05 ES ES506883A patent/ES506883A0/en active Granted
- 1981-11-17 AU AU77563/81A patent/AU541839B2/en not_active Ceased
- 1981-11-17 CA CA000390264A patent/CA1174855A/en not_active Expired
- 1981-11-17 ZW ZW279/81A patent/ZW27981A1/en unknown
- 1981-11-18 BE BE0/206590A patent/BE891176A/en not_active IP Right Cessation
- 1981-11-20 FR FR8121825A patent/FR2501238B1/en not_active Expired
- 1981-11-20 IT IT25206/81A patent/IT1140286B/en active
- 1981-11-23 AT AT0502781A patent/AT385518B/en not_active IP Right Cessation
- 1981-11-24 FI FI813737A patent/FI71351C/en not_active IP Right Cessation
- 1981-11-30 KR KR1019810004651A patent/KR830007865A/en not_active Withdrawn
- 1981-11-30 MX MX190331A patent/MX157301A/en unknown
- 1981-12-03 CS CS818953A patent/CS226043B2/en unknown
- 1981-12-07 DD DD81235493A patent/DD202185A5/en not_active IP Right Cessation
- 1981-12-14 SU SU813366706A patent/SU1069632A3/en active
- 1981-12-16 PL PL23426681A patent/PL234266A1/xx unknown
-
1982
- 1982-01-14 OA OA57593A patent/OA06996A/en unknown
- 1982-01-20 JP JP57006181A patent/JPS57149438A/en active Pending
- 1982-01-26 BR BR8200425A patent/BR8200425A/en unknown
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE295549C (en) * | ||||
| FR2215478A1 (en) * | 1973-01-26 | 1974-08-23 | Stiftelsen Metallurg Forskni | |
| GB1460852A (en) * | 1973-01-26 | 1977-01-06 | Skf Svenska Kullagerfab Ab | Method of producing metal from metal oxides |
Non-Patent Citations (1)
| Title |
|---|
| EXBK/81 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2158782C1 (en) * | 2000-03-10 | 2000-11-10 | ЗАО "Шунгитовые технологии" | Charge for smelting of ferromagnese |
Also Published As
| Publication number | Publication date |
|---|---|
| ATA502781A (en) | 1987-09-15 |
| DE3141926A1 (en) | 1982-10-28 |
| FI71351C (en) | 1986-12-19 |
| OA06996A (en) | 1983-08-31 |
| PH19400A (en) | 1986-04-10 |
| GB2094354B (en) | 1984-10-31 |
| CS226043B2 (en) | 1984-03-19 |
| AU7756381A (en) | 1982-09-16 |
| ZW27981A1 (en) | 1982-02-10 |
| FI813737L (en) | 1982-09-10 |
| AT385518B (en) | 1988-04-11 |
| GB2094354A (en) | 1982-09-15 |
| BR8200425A (en) | 1982-11-30 |
| KR830007865A (en) | 1983-11-07 |
| FI71351B (en) | 1986-09-09 |
| SU1069632A3 (en) | 1984-01-23 |
| CA1174855A (en) | 1984-09-25 |
| AU541839B2 (en) | 1985-01-24 |
| SE8105120L (en) | 1982-09-10 |
| BE891176A (en) | 1982-03-16 |
| IT1140286B (en) | 1986-09-24 |
| PL234266A1 (en) | 1982-09-27 |
| ES8206639A1 (en) | 1982-09-01 |
| ES506883A0 (en) | 1982-09-01 |
| FR2501238B1 (en) | 1986-04-18 |
| JPS57149438A (en) | 1982-09-16 |
| DD202185A5 (en) | 1983-08-31 |
| DE3141926C2 (en) | 1985-06-13 |
| ZA811540B (en) | 1981-11-25 |
| MX157301A (en) | 1988-11-14 |
| IT8125206A0 (en) | 1981-11-20 |
| IN155076B (en) | 1984-12-29 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| ST | Notification of lapse |