EP2235461A1 - Device and method for obtaining metals or metal compounds - Google Patents
Device and method for obtaining metals or metal compoundsInfo
- Publication number
- EP2235461A1 EP2235461A1 EP08862095A EP08862095A EP2235461A1 EP 2235461 A1 EP2235461 A1 EP 2235461A1 EP 08862095 A EP08862095 A EP 08862095A EP 08862095 A EP08862095 A EP 08862095A EP 2235461 A1 EP2235461 A1 EP 2235461A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- housing
- slag
- metal
- electrode
- heating
- 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
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
- C21C5/52—Manufacture of steel in electric furnaces
- C21C5/5229—Manufacture of steel in electric furnaces in a direct current [DC] electric arc furnace
-
- 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
- C21C5/52—Manufacture of steel in electric furnaces
- C21C5/5241—Manufacture of steel in electric furnaces in an inductively heated furnace
- C21C5/5247—Manufacture of steel in electric furnaces in an inductively heated furnace processing a moving metal stream while exposed to an electromagnetic field, e.g. in an electromagnetic counter current channel
-
- 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
- C21C5/52—Manufacture of steel in electric furnaces
- C21C5/5252—Manufacture of steel in electric furnaces in an electrically heated multi-chamber furnace, a combination of electric furnaces or an electric furnace arranged for associated working with a non electric furnace
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B3/00—Hearth-type furnaces, e.g. of reverberatory type; Tank furnaces
- F27B3/08—Hearth-type furnaces, e.g. of reverberatory type; Tank furnaces heated electrically, with or without any other source of heat
- F27B3/085—Arc furnaces
Definitions
- the invention relates to an apparatus and a method for recovering metals or metal compounds, in particular from a solid containing the metal or the metal compound.
- the invention therefore relates in particular to a device according to claim 1 and furthermore to a method according to claim 11.
- metals or metal compounds coexist with solids, so it is technically complicated to separate the metal or metal compound from the solid for other purposes and processing. Therefore, the metals or metal compounds are separated from the solids by means of obtaining such metals or metal compounds.
- Such devices and methods for recovering metals or metal compounds from a solid containing the metal or metal compound are known in the art.
- WO 2006/131372 discloses a device in which a liquefied metal-containing slag is heated in an electric arc furnace, wherein the metal-containing slag is heated in a first AC or DC furnace and then the melt from the first furnace to a second Furnace, which is designed as a DC electric furnace, is spent.
- EP 0714 860 B1 has become known, in which a method for the treatment of solid residues from waste incineration plants is disclosed in which slag is melted in a plurality of heating chambers, wherein in a first heating chamber, the slag is oxidized in a second heating chamber reduces the metal and the metal is sedimented in a third heating chamber, and then fed into a preceding heating chamber, where it is collected and from which it is taken.
- the devices known in the prior art show a lack of efficiency, wherein the proportion of the recovered metal or the metal compound fertilg is still too low and the proportion of the remaining unrecovered metal or the metal compound is still much too high.
- the storage of these slags or materials is associated with high costs, such as the storage of slags from the ferro-alloy industry or the non-ferrous industry, in which in the manufacture or handling of platinum, copper, nickel, lead, etc. typically large Obtain quantities of slags, which therefore leads to high costs.
- the object is achieved with respect to the device with the features of claim 1.
- the object is achieved with a device for obtaining metals or metal compounds, in particular from a material containing the metal or the metal compound, with a housing having a first inlet for the supply of the material and a a first outlet for the escape of exhaust gas, further provided in the housing, a first electrode as an anode and a second electrode as a cathode for e- lectric heating of the material provided in the housing, a tap for removing molten metal or metal compound and an overflow for the slag.
- a supply of slag is provided, by means of which slag can be supplied to the interior of the housing. It can thereby be achieved that, for example, metal-containing slag can be supplied to the device for depletion.
- the first electrode advantageously projects from above into the housing and extends into a layer of the electrically conductive material.
- the second electrode is arranged on the housing bottom or is integrated in the housing bottom.
- a layer structure results in the housing which has a layer of electrically conductive material, a layer of slag and a layer of molten metal or metal compound.
- an electrode or a heating rod is provided in the housing, by means of which a resistance heating of the material provided in the housing, the slag and / or the melt can be carried out.
- an electrode or a heating rod is provided in the housing, by means of which heating of the material provided in the housing, the slag and / or the melt can be carried out in the arc mode.
- a supply of reducing agent is provided in the housing.
- At least one electromagnet or a coil of an electromagnet is provided in the housing, wherein the electromagnet or the coil is preferably provided at the level of the slag in order to achieve a movement or a stirring of the material in the vessel ,
- the material containing the metal or the metal compound is a solid, such as, for example, a bulk material.
- the object with respect to the method is achieved with the features of claim 11.
- the method relates to a method for obtaining metals or metal compounds, in particular from a material containing the metal or the metal compound with a housing having a first inlet for the supply of the material and a first outlet for the escape of exhaust gas, further in the Housing a first electrode as an anode and a second electrode is provided as a cathode for electrically heating the material provided in the housing, a tap for removing molten metal or metal compound and an overflow for the slag, wherein the material is introduced into the apparatus and is melted there, in which electrical energy is introduced by resistance heating or arc operation.
- FIG. 1 is a schematic representation of an embodiment of a device according to the invention
- FIG. 2 is a schematic representation of an embodiment of a device according to the invention.
- Fig. 3 is a schematic representation of an embodiment of a device according to the invention.
- Fig. 4 is a schematic representation of an embodiment of an inventive device.
- FIG. 1 shows schematically a representation of an exemplary embodiment of a device 1 according to the invention for recovering metal or metal compounds, such as alloys, for example, from solids bonded or mixed with these or containing them.
- the device 1 has a housing 2, which is preferably formed well insulating heat, so that in the interior of the housing of the solid and / or the metal or the metal compound can be melted and the energy to be expended is not increased too much by heat losses , Therefore, the housing is also double-walled from an inner housing 3 and an outer housing 4 constructed.
- a first connecting piece 5 is provided, which is designed in the manner of a supply channel or pipe.
- connection piece such as inlet 5
- the solid containing the metal for example as bulk material
- a further connecting piece, such as outlet, 6 is provided, which is also designed in the manner of a disposal channel or pipe.
- the port 6 is used for the disposal or the escape of exhaust gas from the device.
- the device 1 has an optional feed 7 for slag, which is arranged laterally of the housing and, for example, as a groove o- pipe penetrates the wall of the housing 2.
- the anode 8 projects rod-shaped through the upper housing wall into the interior of the housing 2, wherein for performing the anode through the housing a passage 10 is provided, which the anode 8 leads and holds in the housing 2.
- the cathode 9 is recessed in the lower bottom of the housing 2 or arranged at the bottom of the housing. It is preferably flat.
- the tapping 11 is provided, by means of which the molten metal or the molten metal compound 12, which collects at the bottom of the housing 2 can be removed.
- the heavy metal or heavy metal compound 12 collects at the bottom of the housing 2.
- the slag accumulates in a layer 13 at.
- a layer 14 of the conductive bulk material of the solid Above the slag layer 13 is a layer 14 of the conductive bulk material of the solid.
- an overflow 16 is provided for the slag 13, which ensures that the level of slag 13 is limited upwards and does not rise further upwards. As a result, the position of the layer 14 is substantially fixed, in which the anode protrudes.
- an electromagnet 15 is arranged, which ensures that the slag 13 and the layer 12 of the metal or the metal compound is set in its respective plane in motion, such as in circular motion.
- FIG. 2 shows an exemplary embodiment of a device 20 according to the invention, in which further features are realized in addition to the features explained in FIG. In Figure 2, the features already shown in Figure 1 are provided with the same reference numerals.
- the device 20 of FIG. 2 has a supply means 21 for solid and / or liquid and / or gaseous reducing agents.
- This supply means 21 is formed in FIG. 21 as a tube which protrudes into the housing 2 from outside the housing 2 and projects into the region of the slag 13, so that the reducing agent passed through the tube is introduced into the slag.
- reducing agents for example coke, coal, charcoal, petroleum coke, calcium carbide and / or gases, which are also made of carbon or hydrogen, the targeted reaction in the housing can be controlled.
- an electrode or heating element 22 for heating the media or slag for the resistance operation in the housing 2.
- an electrode or heating element 23 for the heating of the media or slag for the arc operation in the housing. 2
- FIGS. 3 and 4 show devices 30, 40 according to the invention which essentially correspond to devices 1 and 20 of FIGS. 1 and 2, the two devices 30, 40 differing in that there are no magnetic fields for moving and stirring the melt or slag available. It can therefore be carried out in these devices, a pure DC operation with coke bed.
- the devices 1, 20, 30, 40 it is advantageously possible to carry out a process for obtaining metal or metal compounds from a metal or metal compound-containing solids, in which the solid is placed in an electric furnace and by means of the electric furnace, preferably by means of a DC electric furnace, is melted.
- This is achieved in a DC electric furnace in that an entry of electrical energy is effected by an electric arc furnace or a resistance heating of the slag in the furnace.
- a chemical reduction can be performed and removal of inclusions can be performed.
- the melt is also preferably stirred by means of one or more externally impressed magnetic fields and, for example, a DC field in the furnace, which is generated by an electrically conductive bulk material and the metal or metal compound phase at the furnace bottom.
- the degree of extraction of metals or metal compounds of slags and rock phases can advantageously be increased, which arise, for example, in the production of non-ferrous metals and ferroalloys. It can also be used to treat contaminated old deposits. Overall, it is possible to carry out a arm melting of solids, so that the resulting slags are less stressful.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Metallurgy (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Electromagnetism (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Manufacture And Refinement Of Metals (AREA)
- Furnace Details (AREA)
- Vertical, Hearth, Or Arc Furnaces (AREA)
- Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
- Refinement Of Pig-Iron, Manufacture Of Cast Iron, And Steel Manufacture Other Than In Revolving Furnaces (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102007061025 | 2007-12-18 | ||
DE102008021886 | 2008-05-02 | ||
PCT/EP2008/010490 WO2009077114A1 (en) | 2007-12-18 | 2008-12-11 | Device and method for obtaining metals or metal compounds |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2235461A1 true EP2235461A1 (en) | 2010-10-06 |
EP2235461B1 EP2235461B1 (en) | 2017-05-31 |
Family
ID=40404857
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP08862095.0A Not-in-force EP2235461B1 (en) | 2007-12-18 | 2008-12-11 | Device and method for obtaining metals or metal compounds |
EP08861906.9A Not-in-force EP2225520B1 (en) | 2007-12-18 | 2008-12-17 | Device for extracting metals or metal compounds from a material containing the metal or the metal compound |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP08861906.9A Not-in-force EP2225520B1 (en) | 2007-12-18 | 2008-12-17 | Device for extracting metals or metal compounds from a material containing the metal or the metal compound |
Country Status (9)
Country | Link |
---|---|
EP (2) | EP2235461B1 (en) |
CN (2) | CN101903730B (en) |
BR (2) | BRPI0820788B1 (en) |
CL (2) | CL2008003748A1 (en) |
DE (1) | DE102008058605A1 (en) |
PE (2) | PE20091616A1 (en) |
RU (2) | RU2455599C2 (en) |
WO (2) | WO2009077114A1 (en) |
ZA (2) | ZA201003734B (en) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102679718A (en) * | 2011-03-15 | 2012-09-19 | 孙晓冰 | Novel transferred arc plasma furnace structural design |
DE102011090072A1 (en) * | 2011-12-29 | 2013-07-04 | Sms Siemag Ag | A method for recovering a metal from a slag containing the metal and apparatus for recovering the metal |
DE102014015302A1 (en) | 2014-10-13 | 2016-04-14 | Sms Group Gmbh | Apparatus and method for cleaning slags |
RU2624880C2 (en) * | 2015-10-12 | 2017-07-07 | Сергей Федорович Павлов | Method of processing oxidised of nickel ores |
DE102016207798A1 (en) * | 2015-11-19 | 2017-05-24 | Sms Group Gmbh | Settling furnace and method of its operation |
CN106082342B (en) * | 2016-08-16 | 2017-12-08 | 浙江海鸿工业产品设计有限公司 | Molybdenum trisulfide production reaction unit |
CN107218800B (en) * | 2017-06-20 | 2019-07-19 | 青岛大学 | A kind of direct current electric arc furnace |
Family Cites Families (17)
Publication number | Priority date | Publication date | Assignee | Title |
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FR1422830A (en) * | 1963-09-24 | 1966-01-03 | Union Carbide Corp | Melting apparatus and method with electrode holder |
JPS495691B1 (en) * | 1965-03-23 | 1974-02-08 | ||
SE396531B (en) * | 1975-11-06 | 1977-09-19 | Asea Ab | DEVICE FOR DIRECTION-FEED LIGHT BACK OVEN |
JPS53146202A (en) * | 1977-05-26 | 1978-12-20 | Kawasaki Heavy Ind Ltd | Method and apparatus for melting and refining steel material |
SU1130074A1 (en) * | 1983-09-29 | 1999-07-27 | Всесоюзный научно-исследовательский горно-металлургический институт цветных металлов | FURNACE FOR OXYGEN MELTING POLYMETALLIC MATERIALS |
SU1617284A1 (en) * | 1987-09-24 | 1990-12-30 | И. X. Левин | Electric furnace for processing oxidized and sulphide materials |
CN1020953C (en) * | 1989-07-11 | 1993-05-26 | 太原重型机器厂 | Dc electric-arc furnace with arc-controlling megnetic mirror |
DE4322448A1 (en) * | 1993-07-06 | 1995-01-12 | Abb Research Ltd | Melting furnace for thermal treatment of heavy metal and / or dioxin-containing special waste |
CH688325A5 (en) * | 1994-11-25 | 1997-07-31 | Holderbank Financ Glarus | Process for the treatment of solid residues from waste incineration plants and apparatus for Drchfuehrung the process. |
CN1154411A (en) * | 1995-07-24 | 1997-07-16 | 亚瑞亚·勃朗勃威力有限公司 | Melting equipment |
AUPP554098A0 (en) * | 1998-08-28 | 1998-09-17 | Technological Resources Pty Limited | A process and an apparatus for producing metals and metal alloys |
EP1375628A3 (en) * | 2000-01-21 | 2004-12-08 | Integrated Environmental Technologies, Llc. | Methods and apparatus for treating waste |
JP2001279313A (en) * | 2000-03-30 | 2001-10-10 | Midrex Internatl Bv | Method for producing molten metallic iron |
RU2207476C2 (en) * | 2001-05-14 | 2003-06-27 | Коршунов Евгений Алексеевич | Melting unit |
US6689182B2 (en) * | 2001-10-01 | 2004-02-10 | Kobe Steel, Ltd. | Method and device for producing molten iron |
RU2235258C1 (en) * | 2003-02-28 | 2004-08-27 | Федеральное государственное унитарное предприятие "Институт Гинцветмет" | Technogenious material processing electric furnace |
DE102006022779A1 (en) | 2005-06-08 | 2006-12-21 | Sms Demag Ag | Method and apparatus for recovering a metal from a slag containing the metal |
-
2008
- 2008-11-19 DE DE102008058605A patent/DE102008058605A1/en not_active Withdrawn
- 2008-12-11 CN CN2008801215573A patent/CN101903730B/en not_active Expired - Fee Related
- 2008-12-11 EP EP08862095.0A patent/EP2235461B1/en not_active Not-in-force
- 2008-12-11 WO PCT/EP2008/010490 patent/WO2009077114A1/en active Application Filing
- 2008-12-11 BR BRPI0820788-7A patent/BRPI0820788B1/en not_active IP Right Cessation
- 2008-12-11 RU RU2010129916/02A patent/RU2455599C2/en not_active IP Right Cessation
- 2008-12-16 CL CL2008003748A patent/CL2008003748A1/en unknown
- 2008-12-17 RU RU2010129525/02A patent/RU2455600C2/en not_active IP Right Cessation
- 2008-12-17 EP EP08861906.9A patent/EP2225520B1/en not_active Not-in-force
- 2008-12-17 CN CN2008801211642A patent/CN101903729B/en not_active Expired - Fee Related
- 2008-12-17 PE PE2008002085A patent/PE20091616A1/en not_active Application Discontinuation
- 2008-12-17 WO PCT/DE2008/002125 patent/WO2009076945A1/en active Application Filing
- 2008-12-17 BR BRPI0821164-7A patent/BRPI0821164B1/en not_active IP Right Cessation
- 2008-12-18 PE PE2008002113A patent/PE20091533A1/en not_active Application Discontinuation
- 2008-12-18 CL CL2008003801A patent/CL2008003801A1/en unknown
-
2010
- 2010-05-26 ZA ZA2010/03734A patent/ZA201003734B/en unknown
- 2010-06-10 ZA ZA2010/04163A patent/ZA201004163B/en unknown
Non-Patent Citations (1)
Title |
---|
See references of WO2009077114A1 * |
Also Published As
Publication number | Publication date |
---|---|
EP2225520A1 (en) | 2010-09-08 |
BRPI0820788B1 (en) | 2017-06-13 |
CN101903730A (en) | 2010-12-01 |
RU2010129525A (en) | 2012-01-27 |
RU2010129916A (en) | 2012-01-27 |
WO2009076945A1 (en) | 2009-06-25 |
WO2009077114A1 (en) | 2009-06-25 |
RU2455599C2 (en) | 2012-07-10 |
CL2008003801A1 (en) | 2009-10-16 |
CN101903729A (en) | 2010-12-01 |
CN101903730B (en) | 2013-12-25 |
ZA201003734B (en) | 2011-03-30 |
EP2235461B1 (en) | 2017-05-31 |
BRPI0820788A2 (en) | 2015-06-16 |
DE102008058605A1 (en) | 2009-07-02 |
BRPI0821164A2 (en) | 2015-06-16 |
BRPI0820788A8 (en) | 2016-10-11 |
RU2455600C2 (en) | 2012-07-10 |
PE20091533A1 (en) | 2009-10-03 |
ZA201004163B (en) | 2011-02-23 |
CN101903729B (en) | 2013-07-17 |
EP2225520B1 (en) | 2017-07-12 |
BRPI0821164B1 (en) | 2018-01-02 |
CL2008003748A1 (en) | 2009-05-15 |
PE20091616A1 (en) | 2009-11-07 |
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