EP2235461B1 - Device and method for obtaining metals or metal compounds - Google Patents

Device and method for obtaining metals or metal compounds Download PDF

Info

Publication number
EP2235461B1
EP2235461B1 EP08862095.0A EP08862095A EP2235461B1 EP 2235461 B1 EP2235461 B1 EP 2235461B1 EP 08862095 A EP08862095 A EP 08862095A EP 2235461 B1 EP2235461 B1 EP 2235461B1
Authority
EP
European Patent Office
Prior art keywords
housing
slag
metal
layer
electrode
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.)
Not-in-force
Application number
EP08862095.0A
Other languages
German (de)
French (fr)
Other versions
EP2235461A1 (en
Inventor
Rolf Degel
Harmen Johannes Oterdoom
Jürgen Kunze
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SMS Group GmbH
Original Assignee
SMS Group GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by SMS Group GmbH filed Critical SMS Group GmbH
Publication of EP2235461A1 publication Critical patent/EP2235461A1/en
Application granted granted Critical
Publication of EP2235461B1 publication Critical patent/EP2235461B1/en
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

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 9.
  • 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 into a second furnace, which is designed as a DC electric furnace , is spent.
  • EP 0714 860 B1 and EP 1375628 A2 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, the metal is reduced and in a third heating chamber the Metal is sedimented to then feed it into a previous heating chamber, where it is collected and from which it is removed.
  • the devices known in the prior art show a lack of efficiency, wherein the proportion of the recovered metal or the metal compound 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 exhaust gas leakage, further comprising in the housing a first electrode as an anode and a second electrode 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.
  • 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 operation.
  • 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 a bulk material.
  • the method relates to a method for obtaining metals or metal compounds, in particular from a material containing the metal or 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 an anode and a second electrode as a cathode for electrically heating the material provided in the housing, a tapping for removing molten metal or metal compound and an overflow for the slag, wherein the material is introduced into the device and is melted there, in which electrical energy is introduced by resistance heating or arc operation.
  • a stirring of the melt and / or slag by means of one or more externally imprinted magnetic fields and, for example, a DC field.
  • the FIG. 1 1 schematically shows a representation of an exemplary embodiment of a device 1 according to the invention for obtaining metal or metal compounds, such as alloys, from solids bonded, mixed 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 supply 7 for slag, which is arranged laterally of the housing and, for example, as a groove or pipe, the wall of the housing 2 passes through.
  • 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 embedded 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 inventive embodiment of a device 20, in which in addition to the in FIG. 1 explained features further features are realized.
  • FIG. 2 are already in FIG. 1 features provided with the same reference numerals.
  • the device 20 of the FIG. 2 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 in the housing interior such as 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.
  • a plurality of magnetic field coils 15 which generate a magnetic field in the interior of the housing for stirring the material in the housing.
  • 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. 1 and 2 show devices 30,40 according to the invention, the devices 1 and 20 of the FIGS. 1 and 2 correspond substantially, wherein the two devices 30, 40 differ in that no magnetic fields for moving and stirring the melt or slag are present. It can therefore be carried out in these devices, a pure DC operation with coke bed.
  • the devices 1, 20, 30, 40 according to the invention 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 takes place by an electric arc furnace or a resistance heating of the slag in the furnace.
  • the melt is preferably also 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)

Description

Technisches GebietTechnical area

Die Erfindung betrifft eine Vorrichtung und ein Verfahren zur Gewinnung von Metallen oder Metallverbindungen insbesondere aus einem das Metall oder die Metallverbindung enthaltenden Feststoff. Die Erfindung betrifft daher insbesondere eine Vorrichtung gemäß Anspruch 1 und weiterhin ein Verfahren gemäß Anspruch 9.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 9.

Stand der TechnikState of the art

Häufig liegen Metalle oder Metallverbindungen mit Feststoffen gemeinsam vor, so dass es technisch aufwändig ist, das Metall oder die Metallverbindung von dem Feststoff zu trennen um es anderen Zwecken und Verarbeitungen zuzuführen. Daher werden die Metalle bzw. Metallverbindungen von den Feststoffen mittels Vorrichtungen zur Gewinnung solcher Metalle bzw. Metallverbindungen getrennt. Solche Vorrichtungen und Verfahren zur Gewinnung von Metallen oder Metallverbindungen aus einem das Metall oder die Metallverbindung enthaltenden Feststoff sind im Stand der Technik bekannt.Frequently, 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.

So ist beispielsweise durch die WO 2006/131372 eine Vorrichtung bekannt geworden, bei welcher in einem Lichtbogenofen eine verflüssigte metallhaltige Schlacke erhitzt wird, wobei die metallhaltige Schlacke in einem ersten Wechselstrom- oder Gleichstromofen erhitzt wird und die Schmelze dann von dem ersten Ofen in einen zweiten Ofen, der als Gleichstrom-Elektroofen ausgebildet ist, verbracht wird.For example, by the 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 into a second furnace, which is designed as a DC electric furnace , is spent.

Weiterhin sind die EP 0714 860 B1 und EP 1375628 A2 bekannt geworden, bei welcher ein Verfahren zur Aufbereitung von festen Rückständen aus Müllverbrennungsanlagen offenbart ist, bei welchem Schlacke in mehreren Heizkammern geschmolzen wird, wobei in einer ersten Heizkammer die Schlacke oxidiert wird, in einer zweiten Heizkammer das Metall reduziert wird und in einer dritten Heizkammer das Metall sedimentiert wird, um es anschließend in eine vorangehende Heizkammer zuzuführen, wo es gesammelt wird und woraus es entnommen wird.Furthermore, the EP 0714 860 B1 and EP 1375628 A2 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, the metal is reduced and in a third heating chamber the Metal is sedimented to then feed it into a previous heating chamber, where it is collected and from which it is removed.

Die im Stand der Technik bekannten Vorrichtungen zeigen eine mangelnde Effizienz aus, wobei der Anteil des gewonnenen Metalls bzw. der Metallverbindung noch zu gering ist und der Anteil des verbleibenden nicht gewonnenen Metalls bzw. der Metallverbindung noch deutlich zu hoch ist. Darüber hinaus ist die Lagerung dieser Schlacken oder Stoffe mit hohen Kosten verbunden, wie beispielsweise die Lagerung von Schlacken aus der Ferro-Legierungsindustrie oder der Nichteisenindustrie, bei welcher bei der Herstellung oder dem Umgang mit Platin, Kupfer, Nickel, Blei etc. typischer Weise große Mengen an Schlacken anfallen, was daher zu hohen Kosten führt.The devices known in the prior art show a lack of efficiency, wherein the proportion of the recovered metal or the metal compound is still too low and the proportion of the remaining unrecovered metal or the metal compound is still much too high. In addition, 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.

Darstellung der Erfindung, Aufgabe, Lösung, VorteilePresentation of the invention, object, solution, advantages

Daher ist es die Aufgabe der Erfindung, eine Vorrichtung und ein Verfahren zu schaffen, mittels welcher bzw. mittels welchem der Anteil des aus Feststoffen gewonnenen Metalls erhöht werden kann bzw. der Anteil des im Feststoff enthaltenen Metalls bzw. der Metallverbindung auf ein geringeres Niveau reduziert werden kann.Therefore, it is the object of the invention to provide an apparatus and a method by means of which or by means of which the proportion of the metal obtained from solids can be increased or the proportion of the metal or metal compound contained in the solid reduced to a lower level can be.

Erfindungsgemäß wird die Aufgabe bezüglich der Vorrichtung mit den Merkmalen von Anspruch 1 gelöst. Dabei wird die Aufgabe erreicht mit einer Vorrichtung zur Gewinnung von Metallen oder Metallverbindungen, insbesondere aus einem das Metall oder die Metallverbindung enthaltenden Material, mit einem Gehäuse mit einem ersten Einlass für die Zuführung des Materials und einem ersten Auslass zum Entweichen von Abgas, wobei weiterhin in dem Gehäuse eine erste Elektrode als Anode und eine zweite Elektrode als Kathode zum elektrischen Heizen des in dem Gehäuse vorgesehenen Materials vorgesehen ist, weiterhin ein Abstich zur Entnahme von geschmolzenem Metall oder Metallverbindung und ein Überlauf für die Schlacke.According to the invention 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 exhaust gas leakage, further comprising in the housing a first electrode as an anode and a second electrode 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.

Dabei ist es vorteilhaft, wenn weiterhin eine Zuführung von Schlacke vorgesehen ist, mittels welcher Schlacke dem Inneren des Gehäuses zugeführt werden kann. Dadurch kann erreicht werden, dass beispielsweise metallhaltige Schlacke der Vorrichtung zur Entreicherung zugeführt werden kann.It is advantageous if, furthermore, 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.

Zum Heizen des Inhalts der Vorrichtung ist es vorteilhaft, wenn die erste Elektrode vorteilhaft von oben in das Gehäuse ragt und bis in eine Schicht des elektrisch leitenden Materials reicht.For heating the content of the device, it is advantageous if the first electrode advantageously projects from above into the housing and extends into a layer of the electrically conductive material.

Auch ist es dazu vorteilhaft, wenn die zweite Elektrode am Gehäuseboden angeordnet ist oder im Gehäuseboden integriert ist.It is also advantageous if the second electrode is arranged on the housing bottom or is integrated in the housing bottom.

Besonders vorteilhaft ist es, wenn sich im Betrieb der Vorrichtung eine Schichtstruktur in dem Gehäuse ergibt, die eine Schicht elektrisch leitenden Materials, einer Schicht Schlacke und eine Schicht geschmolzenem Metall oder Metallverbindung aufweist.It is particularly advantageous if, during operation of the device, 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.

Weiterhin ist es vorteilhaft, wenn eine Elektrode oder ein Heizstab in dem Gehäuse vorgesehen ist, mittels welchem ein Widerstandsheizen des im Gehäuse vorgesehenen Materials, der Schlacke und/oder der Schmelze durchgeführt werden kann.Furthermore, it is advantageous if 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.

Auch ist es zweckmäßig, wenn weiterhin eine Elektrode oder ein Heizstab in dem Gehäuse vorgesehen ist, mittels welchem im Lichtbogenbetrieb ein Heizen des im Gehäuse vorgesehenen Materials, der Schlacke und/oder der Schmelze durchgeführt werden kann.It is also expedient if, furthermore, 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 operation.

Bei einem weiteren Ausführungsbeispiel der Erfindung ist es zweckmäßig, wenn eine Zuführung von Reduktionsmittel in das Gehäuse vorgesehen ist.In a further embodiment of the invention, it is expedient if a supply of reducing agent is provided in the housing.

Vorteilhaft ist es, wenn zumindest ein Elektromagnet oder eine Spule eines Elektromagneten in dem Gehäuse vorgesehen ist, wobei der Elektromagnet bzw. die Spule vorzugsweise auf Höhe der Schlacke vorgesehen ist, um eine Bewegung bzw. ein Umrühren des Materials in dem Gefäß zu erreichen.It is advantageous if 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.

Weiterhin ist es vorteilhaft, wenn das Metall oder die Metallverbindung enthaltende Material ein Feststoff, wie beispielsweise ein Schüttgut, ist.Furthermore, it is advantageous if the material containing the metal or the metal compound is a solid, such as a bulk material.

Die Aufgabe bezüglich des Verfahrens wird mit den Merkmalen von Anspruch 9 gelöst. Dabei betrifft das Verfahren ein Verfahren zur Gewinnung von Metallen oder Metallverbindungen insbesondere aus einem das Metall oder die Metallverbindung enthaltenden Materials mit einem Gehäuse mit einem ersten Einlass für die Zuführung des Materials und einem ersten Auslass zum Entweichen von Abgas, weiterhin in dem Gehäuse eine erste Elektrode als Anode und eine zweite Elektrode als Kathode zum elektrischen Heizen des in dem Gehäuse vorgesehenen Materials vorgesehen ist, weiterhin ein Abstich zur Entnahme von geschmolzenem Metall oder Metallverbindung und ein Überlauf für die Schlacke, wobei das Material in die Vorrichtung verbracht wird und dort aufgeschmolzen wird, in dem elektrische Energie durch Widerstandsheizen oder Lichtbogenbetrieb eingebracht wird.The object with respect to the method is achieved with the features of claim 9. In this case, the method relates to a method for obtaining metals or metal compounds, in particular from a material containing the metal or 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 an anode and a second electrode as a cathode for electrically heating the material provided in the housing, a tapping for removing molten metal or metal compound and an overflow for the slag, wherein the material is introduced into the device and is melted there, in which electrical energy is introduced by resistance heating or arc operation.

Vorteilhaft ist es, wenn eine chemische Reduktion durchgeführt wird, wobei dazu Reduktionsmittel zugeführt werden.It is advantageous if a chemical reduction is carried out, to which reducing agents are supplied.

Auch ist es zweckmäßig, wenn eine Entfernung von Einschlüssen durchgeführt wird.It is also expedient if a removal of inclusions is carried out.

Weiterhin ist es vorteilhaft, wenn in der Vorrichtung eine Rührung der Schmelze und/oder der Schlacke mittels eines oder mehrerer von außen eingeprägter Magnetfelder und beispielsweise einem Gleichstromfeld erfolgt.Furthermore, it is advantageous if in the device, a stirring of the melt and / or slag by means of one or more externally imprinted magnetic fields and, for example, a DC field.

Auch ist es zweckmäßig, wenn eine elektrolytische Abscheidung der zu gewinnenden Metalle oder Metallverbindungen durchgeführt wird.It is also expedient if an electrolytic deposition of the metals or metal compounds to be obtained is carried out.

Vorteilhafte Weiterbildungen sind in den Unteransprüchen beschrieben.Advantageous developments are described in the subclaims.

Kurze Beschreibung der ZeichnungenBrief description of the drawings

Nachstehend wird die Erfindung auf der Grundlage eines Ausführungsbeispiels anhand der Zeichnungen näher erläutert.The invention will be explained in more detail on the basis of an embodiment with reference to the drawings.

Es zeigen:

Fig. 1
eine schematische Darstellung eines Ausführungsbeispiels einer erfindungsgemäße Vorrichtung,
Fig. 2
eine schematische Darstellung eines Ausführungsbeispiels einer erfindungsgemäße Vorrichtung,
Fig. 3
eine schematische Darstellung eines Ausführungsbeispiels einer erfindungsgemäße Vorrichtung und
Fig. 4
eine schematische Darstellung eines Ausführungsbeispiels einer erfindungsgemäße Vorrichtung.
Show it:
Fig. 1
a schematic representation of an embodiment of a device according to the invention,
Fig. 2
a schematic representation of an embodiment of a device according to the invention,
Fig. 3
a schematic representation of an embodiment of an inventive device and
Fig. 4
a schematic representation of an embodiment of a device according to the invention.

Bevorzugte Ausführung der ErfindungPreferred embodiment of the invention

Die Figur 1 zeigt schematisch eine Darstellung eines Ausführungsbeispiels einer erfindungsgemäße Vorrichtung 1 zur Gewinnung von Metall oder Metallverbindungen, wie beispielsweise Legierungen, aus mit diesen verbundenen oder vermischten oder diese enthaltenden Feststoffen. Die Vorrichtung 1 weist ein Gehäuse 2 auf, welches vorzugsweise gut Wärme isolierend ausgebildet ist, so dass im Inneren des Gehäuses der Feststoff und/oder das enthaltende Metall bzw. die Metallverbindung aufgeschmolzen werden kann und die dazu aufzuwendende Energie nicht allzu stark durch Wärmeverluste erhöht wird. Daher ist das Gehäuse auch doppelwandig aus einer inneren Gehäusewandung 3 und einer äußeren Gehäusewandung 4 aufgebaut. Auf der Oberseite des Gehäuses 2 ist ein erster Anschlussstutzen 5 vorgesehen, der nach Art eines Versorgungskanals oder -rohrs ausgebildet ist. Durch diesen Anschlussstutzen, wie Einlass, 5 kann der das Metall enthaltende Feststoff, beispielsweise als Schüttgut, in die Vorrichtung 1 eingebracht werden. Weiterhin ist an der Oberseite des Gehäuses 2 ein weiterer Anschlussstutzen, wie Auslass, 6 vorgesehen, welcher ebenfalls nach Art eines Entsorgungskanals oder -rohrs ausgebildet ist. Der Anschluss 6 dient der Entsorgung oder dem Entweichen von Abgas aus der Vorrichtung.The FIG. 1 1 schematically shows a representation of an exemplary embodiment of a device 1 according to the invention for obtaining metal or metal compounds, such as alloys, from solids bonded, mixed 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. On the upper side of the housing 2, a first connecting piece 5 is provided, which is designed in the manner of a supply channel or pipe. Through this connection piece, such as inlet 5, the solid containing the metal, for example as bulk material, can be introduced into the device 1. Furthermore, at the top of the housing 2, 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.

Weiterhin verfügt die Vorrichtung 1 über eine optionale Zuführung 7 für Schlacke, die seitlich des Gehäuses angeordnet ist und beispielsweise als Rinne oder Rohr die Wandung des Gehäuses 2 durchsetzt.Furthermore, the device 1 has an optional supply 7 for slag, which is arranged laterally of the housing and, for example, as a groove or pipe, the wall of the housing 2 passes through.

In dem Gehäuse 2 der Vorrichtung sind zwei Elektroden 8,9 einer elektrischen Heizung vorgesehen, wobei die Anode 8 stabförmig durch die obere Gehäusewandung ins Innere des Gehäuses 2 ragt, wobei zur Durchführung der Anode durch die Gehäusewandung eine Durchführung 10 vorgesehen ist, welche die Anode 8 in dem Gehäuse 2 führt und hält. Weiterhin ist die Kathode 9 im unteren Boden des Gehäuses 2 eingelassen oder am Boden des Gehäuses angeordnet. Sie ist vorzugsweise flächig ausgebildet.In the housing 2 of the device, two electrodes 8,9 of an electric heater are provided, wherein 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. Furthermore, the cathode 9 is embedded in the lower bottom of the housing 2 or arranged at the bottom of the housing. It is preferably flat.

Am unteren Bereich des Gehäuses ist der Abstich 11 vorgesehen, mittels welchem das geschmolzene Metall oder die geschmolzene Metallverbindung 12, die sich am Boden des Gehäuses 2 sammelt entnommen werden kann.At the lower portion of the housing, 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.

Im Betrieb sammelt sich das schwere Metall bzw. die schwere Metallverbindung 12 am Boden des Gehäuses 2. Darüber sammelt sich die Schlacke in einer Schicht 13 an. Über der Schlackeschicht 13 befindet sich eine Schicht 14 des leitenden Schüttguts des Feststoffs.In operation, the heavy metal or heavy metal compound 12 collects at the bottom of the housing 2. In addition, the slag accumulates in a layer 13 at. Above the slag layer 13 is a layer 14 of the conductive bulk material of the solid.

Seitlich an dem Gehäuse ist ein Überlauf 16 für die Schlacke 13 vorgesehen, welcher dafür sorgt, dass das Niveau der Schlacke 13 nach oben begrenzt ist und nicht weiter nach oben ansteigt. Dadurch ist die Lage der Schicht 14 im Wesentlichen festgelegt, in welche die Anode ragt.On the side of the housing, 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.

Auf Höhe der Schlacke 13 ist ein Elektromagnet 15 angeordnet, welcher dafür sorgt, dass die Schlacke 13 und die Schicht 12 des Metalls bzw. der Metallverbindung in seiner jeweiligen Ebene in Bewegung, wie beispielsweise in kreisförmige Bewegung versetzt wird.At the level of the slag 13, 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.

Die Figur 2 zeigt ein erfindungsgemäßes Ausführungsbeispiel einer Vorrichtung 20, bei der zusätzlich zu den in Figur 1 erläuterten Merkmalen weitere Merkmale realisiert sind. In Figur 2 sind die bereits in Figur 1 dargestellten Merkmale mit den gleichen Bezugszeichen versehen.The FIG. 2 shows an inventive embodiment of a device 20, in which in addition to the in FIG. 1 explained features further features are realized. In FIG. 2 are already in FIG. 1 features provided with the same reference numerals.

Gegenüber der Vorrichtung 1 der Figur 1 weist die Vorrichtung 20 der Figur 2 ein Zuführmittel 21 für feste und/oder flüssige und/oder gasförmige Reduktionsmittel auf. Dieses Zuführmittel 21 ist in Figur 21 als Rohr ausgebildet, das von außerhalb des Gehäuses 2 in das Gehäuse 2 hineinragt und bis in den Bereich der Schlacke 13 hinein ragt, so dass das durch das Rohr geleitete Reduktionsmittel bis in die Schlacke eingetragen wird. Durch die Zuführung von Reduktionsmitteln in den Gehäuseinnenraum, beispielsweise Koks, Kohle, Holzkohle, Petrolkoks, Kalzium-Karbid und/oder Gase, die sich auch aus Kohlenstoff oder Wasserstoff zusammensetzen, kann die gezielte Reaktion in dem Gehäuse kontrolliert werden.Compared to the device 1 of FIG. 1 the device 20 of the FIG. 2 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. By the supply of reducing agents in the housing interior, such as 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.

Darüber hinaus befinden sich in bzw. an dem Gehäuse mehrere Magnetfeldspulen 15, die ein Magnetfeld im Innem des Gehäuses erzeugen zum Umrühren des Materials in dem Gehäuse.In addition, located in or on the housing a plurality of magnetic field coils 15 which generate a magnetic field in the interior of the housing for stirring the material in the housing.

Weiterhin befindet sich eine Elektrode bzw. Heizstab 22 für die Beheizung der Medien bzw. Schlacke für den Widerstandsbetrieb in dem Gehäuse 2. Weiterhin befindet sich eine Elektrode bzw. Heizstab 23 für die Beheizung der Medien bzw. Schlacke für den Lichtbogenbetrieb in dem Gehäuse 2. Dadurch kann die Schmelze 12, das leitende Schüttgut 14 und/oder die Schlacke 13 durch Widerstandsheizen und/oder durch Lichtbogenheizen aufgeschmolzen bzw. temperiert werden. Dadurch kann der Energieeintrag deutlich erhöht werden und ggfs. auch vergleichmäßigt werden.Furthermore, there is an electrode or heating element 22 for heating the media or slag for the resistance operation in the housing 2. Furthermore, there is an electrode or heating element 23 for the heating of the media or slag for the arc operation in the housing. 2 As a result, the melt 12, the conductive bulk material 14 and / or the slag 13 can be melted or tempered by resistance heating and / or by arc heating. As a result, the energy input can be significantly increased and, if necessary, be evened out.

Die Figuren 3 und 4 zeigen erfindungsgemäße Vorrichtungen 30,40, die den Vorrichtungen 1 und 20 der Figuren 1 und 2 im Wesentlichen entsprechen, wobei die beiden Vorrichtungen 30, 40 sich dadurch unterscheiden, dass keine Magnetfelder zum Bewegen und Rühren der Schmelze bzw. Schlacke vorhanden sind. Es kann daher in diesen Vorrichtungen ein reiner Gleichstrombetrieb mit Koksbett durchgeführt werden.The Figures 3 and 4 show devices 30,40 according to the invention, the devices 1 and 20 of the FIGS. 1 and 2 correspond substantially, wherein the two devices 30, 40 differ in that no magnetic fields for moving and stirring the melt or slag are present. It can therefore be carried out in these devices, a pure DC operation with coke bed.

Durch die erfindungsgemäßen Vorrichtungen 1,20,30,40 ist es vorteilhaft möglich, ein Verfahren zur Gewinnung von Metall oder von Metallverbindungen aus ein Metall oder eine Metallverbindung enthaltenden Feststoffen durchzuführen, bei welchem der Feststoff in einen Elektroofen verbracht wird und mittels des Elektroofens, vorzugsweise mittels eines Gleichstromelektroofens, aufgeschmolzen wird. Dies wird in einem Gleichstromelektroofen dadurch erreicht, dass ein Eintrag elektrischer Energie erfolgt durch einen Lichtbogenöfen oder eine Widerstandsbeheizung der im Ofen befindlichen Schlacke.By means of the devices 1, 20, 30, 40 according to the invention, 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 takes place by an electric arc furnace or a resistance heating of the slag in the furnace.

Darüber hinaus kann eine chemische Reduktion durchgeführt werden und es kann eine Entfernung von Einschlüssen durchgeführt werden.In addition, a chemical reduction can be performed and removal of inclusions can be performed.

In dem Elektroofen erfolgt vorzugsweise ebenfalls eine Rührung der Schmelze mittels eines oder mehrerer von außen eingeprägter Magnetfelder und beispielsweise einem Gleichstromfeld im Ofen, das durch ein elektrisch leitendes Schüttgut und der Metall- oder Metallverbindungsphase am Ofenboden erzeugt wird.In the electric furnace, the melt is preferably also 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.

Weiterhin kann eine elektrolytische Abscheidung der zu gewinnenden Metalle oder Metallverbindungen durchgeführt werden.Furthermore, an electrolytic deposition of the metals or metal compounds to be obtained can be carried out.

Dadurch kann vorteilhaft der Gewinnungsgrad von Metallen oder Metallverbindungen von Schlacken und Steinphasen erhöht werden, die beispielsweise bei der Herstellung von Nichteisenmetallen und Ferrolegierungen entstehen. Auch kann damit die Aufbereitung von kontaminierten Altlagerstätten durchgeführt werden. Es wird insgesamt ermöglicht, ein Armschmelzen von Feststoffen durchzuführen, so dass die dadurch entstehenden Schlacken weniger belastend sind.As a result, 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.

BezugszeichenlisteLIST OF REFERENCE NUMBERS

11
Vorrichtung zur Gewinnung von Metallen oder MetallverbindungenApparatus for recovering metals or metal compounds
22
Gehäusecasing
33
Gehäusewandunghousing
44
Gehäusewandunghousing
55
Anschlußstutzen, EinlassConnecting piece, inlet
66
Anschlußstutzen, AuslassConnecting piece, outlet
77
Zuführungfeed
88th
Elektrodeelectrode
99
Elektrodeelectrode
1010
Durchführungexecution
1111
Abstichracking
1212
geschmolzenes Metall oder Metallverbindungmolten metal or metal compound
1313
Schicht, vorzugsweise SchlackeschichtLayer, preferably slag layer
1414
Schicht, vorzugsweise leitendes SchüttgutLayer, preferably conductive bulk material
1515
Elektromagnet, SpuleElectromagnet, coil
1616
Überlaufoverflow
2020
Vorrichtungcontraption
2121
Zuführmittelfeeding
2222
Heizstab, ElektrodeHeating rod, electrode
2323
Heizstab, ElektrodeHeating rod, electrode
3030
Vorrichtungcontraption
4040
Vorrichtungcontraption

Claims (13)

  1. Device for recovering metals or metal compounds from a material containing the metal or metal compound, comprising a housing (2) with a first inlet (4) for the feed of the material and a first outlet (6) for escape of waste gas, wherein a first electrode (8) as anode and a second electrode (9) as cathode for electric heating of the material present in the housing (2) is provided in the housing and in addition a tap (11) for extraction of molten metal or metal compound (12) and an overflow for the slag (13), wherein further a feed (7) of slag is provided laterally of the housing, by means of which slag can be fed to the interior of the housing (2), wherein in operation of the device (1) a layer structure consisting of a layer of electrically conductive material (14), a layer of slag (13) and a layer of molten metal or metal compound arises in the housing, wherein the overflow (16) for the slag (13) upwardly bounds the level of the slag and thereby substantially fixes the position of the layer of electrically conductive material (14) and wherein the first electrode (8) projects from above into the housing and extends to in the layer of electrically conductive material (14).
  2. Device according to claim 1, characterised in that the second electrode (9) is arranged at the housing base or integrated in the housing base.
  3. Device according to claim 1, characterised in that in operation of the device (1) a layer structure consisting of a layer of electrically conductive material, a layer of slag and a layer of molten metal or metal compound arises in the housing.
  4. Device according to any one of the preceding claims, characterised in that in addition an electrode or a heating rod (22) is provided in the housing, by means of which a resistance heating of the material present in the housing, the slag and/or the melt can be carried out.
  5. Device according to any one of the preceding claims, characterised in that in addition an electrode or a heating rod (22) is provided in the housing, by means of which, in arc operation, heating of the material present in the housing, the slag and/or the melt can be carried out.
  6. Device according to any one of the preceding claims, characterised in that a feed (21) of reduction agent to the housing is provided.
  7. Device according to any one of the preceding claims, characterised in that at least one electromagnet (15) or a coil of an electromagnet is provided in the housing (2), wherein the electromagnet or the coil is preferably provided at the level of the slag.
  8. Device according to at least one of the preceding claims, characterised in that the material containing the metal or the metal compound is a solid such as, for example, a bulk material.
  9. Method for recovery of metals or metal compounds with the help of the device according to any one of claims 1 to 8, wherein the material is introduced into the device and melted therein in that electrical energy is introduced by resistance heating or arc operation.
  10. Method according to claim 9, characterised in that a chemical reduction is carried out, wherein reduction agents are supplied for that purpose.
  11. Method according to claim 9 or 10, characterised in that removal of inclusions is carried out.
  12. Method according to any one of claims 9 to 11, characterised in that stirring of the melt and/or the slag is carried out in the device by means of one or more externally imposed magnetic fields and, for example, a direct current field.
  13. Method according to any one of claims 9 to 12, characterised in that electrolytic dissociation of the metals or metal compounds to be recovered is carried out.
EP08862095.0A 2007-12-18 2008-12-11 Device and method for obtaining metals or metal compounds Not-in-force EP2235461B1 (en)

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 EP2235461A1 (en) 2010-10-06
EP2235461B1 true 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)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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

Also Published As

Publication number Publication date
CN101903729B (en) 2013-07-17
ZA201004163B (en) 2011-02-23
CN101903730A (en) 2010-12-01
CN101903730B (en) 2013-12-25
RU2010129525A (en) 2012-01-27
BRPI0820788A8 (en) 2016-10-11
CN101903729A (en) 2010-12-01
CL2008003801A1 (en) 2009-10-16
EP2235461A1 (en) 2010-10-06
ZA201003734B (en) 2011-03-30
RU2010129916A (en) 2012-01-27
PE20091533A1 (en) 2009-10-03
WO2009076945A1 (en) 2009-06-25
EP2225520B1 (en) 2017-07-12
CL2008003748A1 (en) 2009-05-15
BRPI0820788A2 (en) 2015-06-16
RU2455600C2 (en) 2012-07-10
DE102008058605A1 (en) 2009-07-02
PE20091616A1 (en) 2009-11-07
WO2009077114A1 (en) 2009-06-25
EP2225520A1 (en) 2010-09-08
RU2455599C2 (en) 2012-07-10
BRPI0821164A2 (en) 2015-06-16
BRPI0820788B1 (en) 2017-06-13
BRPI0821164B1 (en) 2018-01-02

Similar Documents

Publication Publication Date Title
EP2235461B1 (en) Device and method for obtaining metals or metal compounds
DE2207048A1 (en) Device for generating an electric arc and method for the extraction or treatment of metals by means of such a device
Ilyas et al. O2-enriched microbial activity with pH-sensitive solvo-chemical and electro-chlorination strategy to reclaim critical metals from the hazardous waste printed circuit boards
DE1515296A1 (en) Method and device for applying thin layers
DE3612114C2 (en) Method and device for separating volatile and non-volatile metals
EP0633947B1 (en) Method for processing free-flowing materials
DE4207694A1 (en) DEVICE FOR THE PRODUCTION OF METALS AND METAL ALLOYS OF HIGH PURITY
DE2540009A1 (en) METAL METAL TREATMENT METHODS, SUCH AS REFINING OR REDUCTION, AND RESERVOIRS FOR CARRYING OUT THE PROCESS
EP3591082A1 (en) Autoclave electrolysis containers for the obtaining plantinoid metal
DE2944352A1 (en) METHOD AND DEVICE FOR THE EXTRACTION OF ULTRAFINE CARBIDE DUST
DE102014015302A1 (en) Apparatus and method for cleaning slags
DE3856080T2 (en) METHOD FOR TREATING LIQUID METALS
DE3242209A1 (en) Method of operating a direct-current arc furnace and a direct-current arc furnace for carrying out the method
EP2937431A1 (en) Method and device for manufacturing a metal melt
EP2185881B1 (en) Method for working up metal oxide-containing dusts or slag and device for carrying out this method
EP3234205B1 (en) Method for reducing molten raw materials, and device for carrying out said method
DE102015110179B3 (en) Process for the treatment of solid starting material
JP7393582B1 (en) Method for manufacturing copper-containing products
DE3816697C1 (en) Process for recovering rare metals
DE82611C (en)
DE69004496T2 (en) Process and plant for separating the components of an alloy.
EP3377660B1 (en) Method for cleaning slag
DE2806727A1 (en) METHOD OF MELTING SLAG
DE586593C (en) Electrically heated stove
DE1176375B (en) Device for refining reactor metals by melting electrolysis, in particular uranium and plutonium

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 20100719

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR

AX Request for extension of the european patent

Extension state: AL BA MK RS

DAX Request for extension of the european patent (deleted)
RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: SMS GROUP GMBH

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

INTG Intention to grant announced

Effective date: 20161221

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

REG Reference to a national code

Ref country code: AT

Ref legal event code: REF

Ref document number: 897874

Country of ref document: AT

Kind code of ref document: T

Effective date: 20170615

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

Free format text: LANGUAGE OF EP DOCUMENT: GERMAN

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 502008015360

Country of ref document: DE

REG Reference to a national code

Ref country code: NL

Ref legal event code: MP

Effective date: 20170531

REG Reference to a national code

Ref country code: LT

Ref legal event code: MG4D

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: HR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170531

Ref country code: NO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170831

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170901

Ref country code: FI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170531

Ref country code: LT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170531

Ref country code: ES

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170531

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LV

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170531

Ref country code: SE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170531

Ref country code: BG

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170831

Ref country code: IS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170930

Ref country code: NL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170531

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170531

Ref country code: CZ

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170531

Ref country code: DK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170531

Ref country code: EE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170531

Ref country code: RO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170531

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: PL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170531

Ref country code: IT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170531

REG Reference to a national code

Ref country code: DE

Ref legal event code: R097

Ref document number: 502008015360

Country of ref document: DE

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed

Effective date: 20180301

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170531

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20171211

REG Reference to a national code

Ref country code: IE

Ref legal event code: MM4A

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170531

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20171211

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

Effective date: 20180831

REG Reference to a national code

Ref country code: BE

Ref legal event code: MM

Effective date: 20171231

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20180102

Ref country code: IE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20171211

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20171231

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20171231

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20171231

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20171211

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20181210

Year of fee payment: 11

REG Reference to a national code

Ref country code: AT

Ref legal event code: MM01

Ref document number: 897874

Country of ref document: AT

Kind code of ref document: T

Effective date: 20171211

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20171211

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MC

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170531

Ref country code: HU

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT; INVALID AB INITIO

Effective date: 20081211

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: CY

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20170531

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: TR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170531

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: PT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170531

REG Reference to a national code

Ref country code: DE

Ref legal event code: R119

Ref document number: 502008015360

Country of ref document: DE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20200701