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EP0085153A1 - Process for gas production and metal recovery in a molten bath reactor, particularly in a molten iron bath - Google Patents

Process for gas production and metal recovery in a molten bath reactor, particularly in a molten iron bath Download PDF

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Publication number
EP0085153A1
EP0085153A1 EP82111253A EP82111253A EP0085153A1 EP 0085153 A1 EP0085153 A1 EP 0085153A1 EP 82111253 A EP82111253 A EP 82111253A EP 82111253 A EP82111253 A EP 82111253A EP 0085153 A1 EP0085153 A1 EP 0085153A1
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EP
European Patent Office
Prior art keywords
bath
metal
molten
reactor
iron
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.)
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Application number
EP82111253A
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German (de)
French (fr)
Inventor
Aktiengesellsch Klockner-Werke
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.)
Kloeckner CRA Technologie GmbH
Original Assignee
Kloeckner CRA Technologie GmbH
Kloeckner Werke AG
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 Kloeckner CRA Technologie GmbH, Kloeckner Werke AG filed Critical Kloeckner CRA Technologie GmbH
Publication of EP0085153A1 publication Critical patent/EP0085153A1/en
Withdrawn legal-status Critical Current

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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
    • C21B13/0006—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
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
    • C10J3/00—Production of combustible gases containing carbon monoxide from solid carbonaceous fuels
    • C10J3/57—Gasification using molten salts or metals
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
    • C10J2300/00—Details of gasification processes
    • C10J2300/09—Details of the feed, e.g. feeding of spent catalyst, inert gas or halogens
    • C10J2300/0913—Carbonaceous raw material
    • C10J2300/093—Coal
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
    • C10J2300/00—Details of gasification processes
    • C10J2300/09—Details of the feed, e.g. feeding of spent catalyst, inert gas or halogens
    • C10J2300/0953—Gasifying agents
    • C10J2300/0959—Oxygen
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
    • C10J2300/00—Details of gasification processes
    • C10J2300/09—Details of the feed, e.g. feeding of spent catalyst, inert gas or halogens
    • C10J2300/0983—Additives
    • C10J2300/0996—Calcium-containing inorganic materials, e.g. lime

Definitions

  • liquid iron pig iron
  • the metallic bath material here iron, and the metal to be produced are identical.
  • DE-OS 30 31 680 already points out the possibility of at least partial afterburning of the coal gas produced.
  • the heat generated is fed to the weld pool, which is kept at operating temperature and does not cool down.
  • an excess amount of high-basicity slag is introduced into the melt bath reactor, or lime is added to the melt.
  • the object of the invention is to modify and improve the known method of the type mentioned at the outset in such a way that it is possible to obtain metals other than iron and metals which are more problematic than the environment, in particular those which are more valuable.
  • This object is achieved in that at least partially fuels are introduced as carbon-containing fuel in the molten bath material, which have at least a small proportion of the metal to be extracted.
  • the known method for gas production and metal extraction of the type mentioned at the outset is used for the economical extraction of low-concentration valuable metals or for the removal of environmentally harmful metals.
  • the high, reductive potential of the iron bath is used to advantage to remove the combustion residues of the metal-carrying fuel used to separate extracted metal.
  • the ash collects in the slag layer of the iron bath reactor, while the metal obtained remains in the metal bath, especially the iron bath. Ash and recovered metal are thus separated from one another and can be removed separately.
  • the particular advantage of the process according to the invention lies in the fact that the metal obtained accumulates in the melt of the bath material and is only removed after a desired concentration has been reached.
  • petroleum coke with noticeable contents of, for example, nickel or vanadium can be gasified with simultaneous extraction of these metals.
  • oil shale the use of which is otherwise unprofitable or which contains high amounts of metals in its mineral substance, which cannot be obtained economically in any other way.
  • the further processing of products such as sewage sludge and industrial waste with moderate amounts of combustible substance is particularly advantageous because - in addition to the heat gain - metals such as copper, zinc or the like are obtained from shredder waste, etc. can, on the other hand, have environmentally problematic heavy metals separated from flammable sewage sludge, so that the environmental impact of such heavy metals is reduced.
  • all materials can be processed to produce coal gas and metal, which on the one hand have a certain calorific value, but on the other hand are mixed or contaminated in some form with the metal to be extracted.
  • the aim is for the metal to be recovered to be deposited in the molten bath, that is to say in particular in the iron bath, and to accumulate over a long period of operation, this desired process control cannot always be achieved. If necessary, the material to be extracted will accumulate in the slag. It can also practically never be ruled out that the metal to be extracted is in the form of particles in the dust that is carried along by the coal gas produced. It is known that gas bubbles form in focal spots of the melting bath, which always also carry a proportion of gaseous metal with them due to the vapor pressure of the metal at the gasification temperature. This metal vapor condenses or sublimates into small tinsel or droplets that float in the coal gas generated. It can therefore be advantageous to extract this metal dust from the general dust using suitable methods.
  • the temperature of the molten bath reactor in addition higher fuels, especially coal, is introduced into the molten bath reactor.
  • Afterburning of the coal gas produced as described, for example, in DE-OS 30 31 680, can also be used.
  • the afterburning of the coal gas produced can be carried out to such an extent that practically all of the coal gas produced is afterburned by the amount required to operate the reactor to be able to supply the necessary heat to the molten bath if the metal to be extracted is sufficiently valuable and can be produced economically in this way.
  • melt pool reactors known from the publications mentioned are suitable for carrying out the gasification process according to the invention. If necessary, these must be equipped with devices for extracting the metal obtained.
  • a gas containing carbon in particular coal or coke
  • an iron carrier can be reductively worked up, but it is possible to extract valuable metals which can be obtained by using the reductive high-temperature atmosphere of the melt pool reactor many energy sources or waste products, which are currently regarded as inferior, are contained in a low concentration which, according to the current state of the art, is considered to be uneconomical.
  • the main products now also include valuable metal concentrates. Since the process does not place any special demands on the gasification material, low-quality energy sources, including waste such as sewage sludge, can be economically converted into a high-quality raw gas.
  • the base material for the melt pool reactor is in particular a base metal, such as iron.
  • a base metal such as iron.
  • the use of a lead or aluminum bath seems possible. The choice of the bath material will be made taking into account the metal normally to be extracted, which is different from the bath material, whereby the operating temperature must be taken into account.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Organic Chemistry (AREA)
  • Combustion & Propulsion (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Manufacture And Refinement Of Metals (AREA)

Abstract

In a process for gas production and metal recovery in a molten bath reactor, particularly in a molten iron bath, gas is produced on the one hand by introducing a carbonaceous fuel and oxygen into a molten bath material, particularly a molten iron bath, of the molten bath reactor, a coal gas consisting essentially of CO and H2 being produced, and metal is recovered on the other hand, by adding metal carriers to the molten bath. As the carbonaceous fuel, fuels having a low content of the metal to be recovered are at least in part introduced into the molten bath material. The metal dissolves in the melt of the bath material, is concentrated and is drawn off after a certain concentration has been reached.

Description

Die Erfindung bezieht sich auf ein Verfahren zur Gaserzeugung und Metallgewinnung in einem Schmelzbadreaktor, insbesondere Eisenbadreaktor, bei dem

  • - zur Gaserzeugung ein kohlenstoffhaltiger Brennstoff und Sauerstoff in ein schmelzflüssiges Badmaterial, insbesondere ein Metallbad, wie z. B. ein Eisenbad, des Schmelbadreaktors eingeleitet werden, wodurch ein im wesentlichen aus CO und H2 bestehendes Kohlegas erzeugt wird, und
  • - zur Metallgewinnung Metallträger in das Schmelzbad eingegeben werden.
The invention relates to a method for gas generation and metal extraction in a molten bath reactor, in particular an iron bath reactor, in which
  • - For gas generation, a carbon-containing fuel and oxygen in a molten bath material, in particular a metal bath, such as. B. an iron bath, the melt reactor are introduced, whereby an essentially consisting of CO and H 2 coal gas is generated, and
  • - Metal carriers are entered into the molten bath to obtain metal.

Bei diesem, aus der DE-OS 30 31 680 der Anmelderin bekannten Verfahren wird gleichzeitig neben der Erzeugung eines Kohlegases im Eisen- bzw. Stahlbadreaktor flüssiges Eisen (Roheisen) erzeugt. Das metallische Badmaterial, hier Eisen, und das zu erzeugende Metall sind identisch. Um auch Brennstoffe mit geringerem Kohlenstoffgehalt, insbesondere minderwertige Kohle, vergasen zu können, ist in der DE-OS 30 31 680 bereits auf die Möglichkeit einer zumindest teilweisen Nachverbrennung des erzeugten Kohlegases hingewiesen. Die dabei erzeugte Wärme wird dem Schmelzbad zugeführt, das dadurch auf Betriebstemperatur gehalten wird und nicht abkühlt. Um einen eventuellen Schwefelgehalt im erzeugten Kohlegas zu verringern, wird eine überschüssige Schlackenmenge von hoher Basizität in den Schmelzbadreaktor eingegeben, oder es wird Kalk der Schmelze zugeführt.In this process, known from DE-OS 30 31 680 by the applicant, liquid iron (pig iron) is produced in addition to the generation of a coal gas in the iron or steel bath reactor. The metallic bath material, here iron, and the metal to be produced are identical. In order to also be able to gasify fuels with a lower carbon content, in particular inferior coal, DE-OS 30 31 680 already points out the possibility of at least partial afterburning of the coal gas produced. The heat generated is fed to the weld pool, which is kept at operating temperature and does not cool down. In order to reduce a possible sulfur content in the coal gas produced, an excess amount of high-basicity slag is introduced into the melt bath reactor, or lime is added to the melt.

Kohlevergasungsverfahren im Eisenbadreaktor sind bereits seit langem bekannt. So ist in der österreichischen Patentschrift 75 029 bereits ein Verfahren zur Kohlegaserzeugung bekannt, bei dem flüssige Schlacke abgeführt wird. Weiterhin sind Kohlevergasungsverfahren beispielsweise aus der DE-OS 19 55 115 und der Veröffentlichung in "Stahl und Eisen", 1980, S. 535 ff. bekannt. Auch die letztere Veröffentlichung lehrt ein Verfahren zur gleichzeitigen Erzeugung eines Kohlegases und eines Metalls, nämlich Stahl. K ohlevergasungsverfahren in iron bath have been known for a long time. In Austrian patent specification 75 029, for example, a method for producing coal gas is already known in which liquid slag is removed. Furthermore, coal gasification processes are known for example from DE-OS 19 55 115 and the publication in "Stahl und Eisen", 1980, p. 535 ff. The latter publication also teaches a process for the simultaneous production of a coal gas and a metal, namely steel.

Schließlich sind aus der DE-PS 450 460 und der DE-AS 10 40 734 Verfahren zum Vergasen von Brennstoffen in einem Schmelzbadreaktor bekannt, bei denen als schmelzflüssiges Badmaterial ein Schlackenbad eingesetzt wird. Eine Metallgewinnung findet jedoch nicht statt.Finally, from DE-PS 450 460 and DE-AS 10 40 734 processes for gasifying fuels in a molten bath reactor are known, in which a slag bath is used as the molten bath material. However, there is no metal extraction.

Aufgabe der Erfindung ist es, das bekannte Verfahren der eingangs genannten Art dahingehend abzuwandeln und zu verbessern, daß eine Gewinnung anderer und insbesondere wertvollerer Metalle als Eisen sowie umweltproblematischer Metalle möglich ist.The object of the invention is to modify and improve the known method of the type mentioned at the outset in such a way that it is possible to obtain metals other than iron and metals which are more problematic than the environment, in particular those which are more valuable.

Diese Aufgabe wird dadurch gelöst, daß als kohlenstoffhaltiger Brennstoff zumindest teilweise Brennstoffe in das schmelzflüssige Badmaterial eingeleitet werden, die einen zumindest geringen Anteil an dem zu gewinnenden Metall haben.This object is achieved in that at least partially fuels are introduced as carbon-containing fuel in the molten bath material, which have at least a small proportion of the metal to be extracted.

Das bekannte Verfahren zur Gaserzeugung und Metallgewinnung der eingangs genannten Art, insbesondere also Eisenbadvergasungsverfahren, wird dadurch zur wirtschaftlichen Gewinnung gering konzentrierter Wertmetalle oder zur Beseitigung umweltschädlicher Metalle eingesetzt. Das hohe, reduktive Potential des Eisenbades wird vorteilhaft genutzt, um die Verbrennungsrückstände des eingesetzten, metallführenden Brennstoffs vom gewonnenen Metall zu trennen. Bei der Vergasung sammelt sich die Asche in der Schlackenschicht des Eisenbadreaktors an, das gewonnene Metall verbleibt dagegen im Metallbad, insbesondere Eisenbad. Asche.und gewonnenes Metall sind somit voneinander getrennt und können getrennt abgezogen werden. Der besondere Vorteil des erfindungsgemäßen Verfahrens liegt dabei darin, daß sich das gewonnene Metall in der Schmelze des Badmaterials anreichert und erst nach Erreichen einer gewünschten Konzentration abgezogen wird.The known method for gas production and metal extraction of the type mentioned at the outset, in particular thus iron bath gasification method, is used for the economical extraction of low-concentration valuable metals or for the removal of environmentally harmful metals. The high, reductive potential of the iron bath is used to advantage to remove the combustion residues of the metal-carrying fuel used to separate extracted metal. During gasification, the ash collects in the slag layer of the iron bath reactor, while the metal obtained remains in the metal bath, especially the iron bath. Ash and recovered metal are thus separated from one another and can be removed separately. The particular advantage of the process according to the invention lies in the fact that the metal obtained accumulates in the melt of the bath material and is only removed after a desired concentration has been reached.

Nach dem Verfahren gemäß der Erfindung lassen sich Petrolkokse mit merklichen Gehalten an beispielsweise Nickel oder Vanadium unter gleichzeitiger Gewinnung dieser Metalle vergasen. Eben dasselbe gilt für ölschiefer, deren anderweitige Nutzung unrentabel ist oder die in ihrer Mineralsubstanz hohe Gehalte an Metallen enthalten, die auf andere Weise nicht wirtschaftlich gewonnen werden können.According to the method according to the invention, petroleum coke with noticeable contents of, for example, nickel or vanadium can be gasified with simultaneous extraction of these metals. The same applies to oil shale, the use of which is otherwise unprofitable or which contains high amounts of metals in its mineral substance, which cannot be obtained economically in any other way.

Neben dieser Aufbereitung von Naturstoffen ist aber insbesondere auch die Weiterverarbeitung von Produkten wie Klärschlämmen und Industriemüll mit mäßigen Anteilen an brennbarer Substanz vorteilhaft, weil sich einerseits - neben dem Wärmegewinn - Metalle wie beispielsweise Kupfer, Zink o. dgl. aus Shredder-Müll usw. gewinnen lassen, andererseits aber umweltproblematische Schwermetalle aus brennbaren Klärschlämmen abtrennen lassen, so daß die Umweltbelastung durch derartige Schwermetalle verringert wird.In addition to this processing of natural materials, the further processing of products such as sewage sludge and industrial waste with moderate amounts of combustible substance is particularly advantageous because - in addition to the heat gain - metals such as copper, zinc or the like are obtained from shredder waste, etc. can, on the other hand, have environmentally problematic heavy metals separated from flammable sewage sludge, so that the environmental impact of such heavy metals is reduced.

Insgesamt lassen sich nach dem erfindungsgemäßen Verfahren alle Materialien unter Gewinnung von Kohlegas und Metall verarbeiten, die einerseits einen gewissen Heizwert haben, andererseits aber in irgendeiner Form mit dem zu gewinnenden Metall versetzt oder verunreinigt sind.Overall, according to the method according to the invention, all materials can be processed to produce coal gas and metal, which on the one hand have a certain calorific value, but on the other hand are mixed or contaminated in some form with the metal to be extracted.

Obwohl in vorteilhafter Durchführung des Verfahrens angestrebt wird, daß sich das zu gewinnende Metall im Schmelzbad, also insbesondere im Eisenbad, abscheidet und während eines längeren Betriebs anreichert, wird diese gewünschte Verfahrensführung nicht immer zu erzielen sein. Gegebenenfalls wird sich das zu gewinnende Material in der Schlacke anreichern. Auch ist praktisch niemals auszuschließen, daß sich das zu gewinnende Metall partikelhaft im Staub befindet, der vom erzeugten Kohlegas mitgeführt wird. Es ist bekannt, daß sich in Brennflecken des Schmelzbades Gasblasen bilden, die aufgrund des Dampfdrucks des Metalls bei der Vergasungstemperatur stets auch einen Anteil an gasförmigem Metall mit sich führen. Dieser Metalldampf kondensiert oder sublimiert zu kleinen Flittern oder Tröpfchen, die im erzeugten Kohlegas schweben. Es kann daher vorteilhaft sein, diesen Metallstaub aus dem allgemeinen Staub über geeignete Verfahren herauszuholen.Although in an advantageous implementation of the process the aim is for the metal to be recovered to be deposited in the molten bath, that is to say in particular in the iron bath, and to accumulate over a long period of operation, this desired process control cannot always be achieved. If necessary, the material to be extracted will accumulate in the slag. It can also practically never be ruled out that the metal to be extracted is in the form of particles in the dust that is carried along by the coal gas produced. It is known that gas bubbles form in focal spots of the melting bath, which always also carry a proportion of gaseous metal with them due to the vapor pressure of the metal at the gasification temperature. This metal vapor condenses or sublimates into small tinsel or droplets that float in the coal gas generated. It can therefore be advantageous to extract this metal dust from the general dust using suitable methods.

Wenn sich das zu gewinnende Metall merklich in der Schlacke löst, muß ein geeignetes Aufbereitungsverfahren für die so angereicherte Schlacke nachgeschaltet werden. Hierbei ist auf die speziellen Gegebenheiten der jeweiligen Verfahrensdurchführung abzustellen.If the metal to be extracted dissolves noticeably in the slag, a suitable preparation process for the slag enriched in this way must be followed. The special circumstances of the respective procedure must be taken into account.

Falls der erfindungsgemäß eingesetzte,kohlenstoffhaltige und zugleich metallführende Brennstoff einen zu geringen Heizwert hat, um durch seine Vergasung die Temperatur des Schmelzbadreaktors aufrechterhalten zu können, werden zusätzlich höherwertige Brennstoffe, insbesondere Kohle, in den Schmelzbadreaktor eingeleitet. Ebenso kann auch eine Nachverbrennung des erzeugten Kohlegases, wie sie beispielsweise in der genannten DE-OS 30 31 680 beschrieben ist, Verwendung finden. Die Nachverbrennung des erzeugten Kohlegases kann dabei soweit durchgeführt werden, daß praktisch das gesamte erzeugte Kohlegas nachverbrannt wird, um die zum Betrieb des Reaktors notwendige Wärme dem Schmelzbad zuführen zu können, wenn das zu gewinnende Metall ausreichend wertvoll ist und sich auf diese Weise wirtschaftlich erzeugen läßt.If used according to the invention e, carbonaceous fuel and at the same time has a metal leading to low heating value, to maintain its gasification, the temperature of the molten bath reactor, in addition higher fuels, especially coal, is introduced into the molten bath reactor. Afterburning of the coal gas produced, as described, for example, in DE-OS 30 31 680, can also be used. The afterburning of the coal gas produced can be carried out to such an extent that practically all of the coal gas produced is afterburned by the amount required to operate the reactor to be able to supply the necessary heat to the molten bath if the metal to be extracted is sufficiently valuable and can be produced economically in this way.

Zur Durchführung des erfindungsgemäßen Vergasungsprozesses eignen sich die aus den genannten Veröffentlichungen bekannten Schmelzbadreaktoren. Diese sind gegebenenfalls mit Einrichtungen zum Abziehen des gewonnenen Metalls auszurüsten.The melt pool reactors known from the publications mentioned are suitable for carrying out the gasification process according to the invention. If necessary, these must be equipped with devices for extracting the metal obtained.

Zusammenfassend läßt sich mit dem Vergasungsverfahren vorzugsweise in einem Eisenbad nach der Erfindung nicht nur ein kohlenstoffhaltiger Brennstoff, insbesondere Kohle oder Koks, vergasen und zugleich ein Eisenträger reduktiv aufarbeiten, sondern es wird unter Ausnutzung der reduktiven Hochtemperaturatmosphäre des Schmelzbadreaktors die Gewinnung wertvoller Metalle möglich, die in vielen, zur Zeit als minderwertig angesehenen Energieträgern oder Abprodukten in geringer, nach dem gegenwärtigen Stand der Technik als unwirtschaftlich angesehener Konzentration enthalten sind. Als Hauptprodukte erscheinen neben dem als Brenn- oder Synthesegas einsetzbaren Kohlegas nunmehr zusätzlich Wertmetallkonzentrate. Da das Verfahren keine besonderen Anforderungen an den Vergasungsstoff stellt, können auch minderwertige Energieträger, bis hin zu Abfällen wie beispielsweise Klärschlämmen, wirtschaftlich in ein hochwertiges Rohgas umgewandelt werden.In summary, not only can a gas containing carbon, in particular coal or coke, be gasified with the gasification process, preferably in an iron bath according to the invention, and at the same time an iron carrier can be reductively worked up, but it is possible to extract valuable metals which can be obtained by using the reductive high-temperature atmosphere of the melt pool reactor many energy sources or waste products, which are currently regarded as inferior, are contained in a low concentration which, according to the current state of the art, is considered to be uneconomical. In addition to the coal gas that can be used as fuel or synthesis gas, the main products now also include valuable metal concentrates. Since the process does not place any special demands on the gasification material, low-quality energy sources, including waste such as sewage sludge, can be economically converted into a high-quality raw gas.

Als Badmaterial für den Schmelzbadreaktor kommt, wie oben hervorgehoben wurde, insbesondere ein unedles Metall, wie beispielsweise Eisen, infrage. Weiterhin erscheint neben dem bevorzugten Eisenbad der Einsatz eines Blei- oder eines Aluminiumbades möglich. Die Wahl des Badmaterials wird dabei vor allem unter Berücksichtigung des zu gewinnenden normalerweise vom Badmaterial verschiedenen Metalls erfolgen, wobei die Betriebstemperatur zu beachten ist.As was emphasized above, the base material for the melt pool reactor is in particular a base metal, such as iron. In addition to the preferred iron bath, the use of a lead or aluminum bath seems possible. The choice of the bath material will be made taking into account the metal normally to be extracted, which is different from the bath material, whereby the operating temperature must be taken into account.

Claims (4)

1. Verfahren zur Gaserzeugung und Metallgewinnung in einem Schmelzbadreaktor, insbesondere Eisenbadreaktor, bei dem - zur Gaserzeugung ein kohlenstoffhaltiger Brennstoff und Sauerstoff in ein schmelzflüssiges Badmaterial, insbesondere ein Metallbad wie z. B. ein Eisenbad, des Schmelzbadreaktors eingeleitet werden, wodurch ein im wesentlichen aus CO und H2 bestehendes Kohlegas erzeugt wird, und - zur Metallgewinnung Metallträger in das Schmelzbad eingegeben werden,
dadurch gekennzeichnet,
daß als kohlenstoffhaltiger Brennstoff zumindest teilweise, Brennstoffe in das schmelzflüssige Badmaterial eingeleitet werden, die einen zumindest geringen Anteil an dem zu gewinnenden Metall haben. 1. Process for gas generation and metal extraction in a melt pool reactor, in particular an iron bath reactor, in which - For gas generation, a carbon-containing fuel and oxygen in a molten bath material, especially a metal bath such. B. an iron bath, the melt reactor are introduced, whereby an essentially consisting of CO and H 2 coal gas is generated, and - metal carriers are inserted into the molten bath to obtain metal,
characterized,
that as carbon-containing fuel, at least partially, fuels are introduced into the molten bath material, which have at least a small proportion of the metal to be obtained. 2. Verfahren nach Anspruch 1,
dadurch gekennzeichnet,
daß das zu gewinnende Metall sich in der Schmelze des Badmaterials, insbesondere im Eisenbad, löst und anreichert und nach Erreichen einer bestimmten Konzentration getrennt vom Badmaterial oder mit diesem zusammen aus dem Reaktorgefäß abgezogen wird.2. The method according to claim 1,
characterized,
that the metal to be obtained dissolves and accumulates in the melt of the bath material, in particular in the iron bath, and, after reaching a certain concentration, is removed separately from the bath material or together with it from the reactor vessel. 3. Verfahren nach Anspruch 1 oder 2, bei dem als Badmaterial ein Metall verwendet wird,
dadurch gekennzeichnet,
daß dieses Metall des Bades unedler ist als das zu gewinnende Metall.3. The method according to claim 1 or 2, in which a metal is used as the bath material,
characterized,
that this metal of the bath is less noble than the metal to be extracted. 4. Verfahren nach einem der Ansprüche 1 bis 3,
dadurch gekennzeichnet,
daß das erzeugte Kohlegas innerhalb des Reaktorgefäßes zumindest teilweise unter Zugabe von Sauerstoff nachverbrannt wird.4. The method according to any one of claims 1 to 3,
characterized,
that the coal gas generated is at least partially afterburned within the reactor vessel with the addition of oxygen.
EP82111253A 1982-02-02 1982-12-04 Process for gas production and metal recovery in a molten bath reactor, particularly in a molten iron bath Withdrawn EP0085153A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3203435 1982-02-02
DE19823203435 DE3203435A1 (en) 1982-02-02 1982-02-02 METHOD FOR GAS PRODUCTION AND METAL EXTRACTION IN A MELT BATH REACTOR, IN PARTICULAR IRON BATH REACTOR

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EP0085153A1 true EP0085153A1 (en) 1983-08-10

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BE1000419A3 (en) * 1987-03-23 1988-12-06 Elsentooling Ireland Ltd Continuous metal prodn. from oxidic mineral - by smelting and redn. in catalyst bath in through-furnace
EP0433674A1 (en) * 1989-12-18 1991-06-26 Outokumpu Oy Method for producing zinc by means of iron melt reduction
WO1992001492A1 (en) * 1990-07-24 1992-02-06 Molten Metal Technology, Inc. Forming carbon dioxide in multi-phase molten bath
WO1993022001A1 (en) * 1992-05-05 1993-11-11 Molten Metal Technology, Inc. Method for indirect chemical reduction of metals in waste
WO1993025277A1 (en) * 1992-06-08 1993-12-23 Molten Metal Technology, Inc. Method for treating organic waste
WO1993025278A1 (en) * 1992-06-08 1993-12-23 Molten Metal Technology, Inc. Method and appartus for treating organic waste
US5537940A (en) * 1993-06-08 1996-07-23 Molten Metal Technology, Inc. Method for treating organic waste
US5615626A (en) * 1994-10-05 1997-04-01 Ausmelt Limited Processing of municipal and other wastes
US6066771A (en) * 1993-04-06 2000-05-23 Ausmelt Limited Smelting of carbon-containing material
WO2001054774A1 (en) * 2000-01-28 2001-08-02 Tribovent Verfahrensentwicklung Gmbh Method for burning metal- or metal oxide containing fuels, especially petroleum coke
CN110951966A (en) * 2019-12-23 2020-04-03 中南大学 A method for harmless disposal of electroplating sludge

Families Citing this family (1)

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DE3603054C2 (en) * 1986-01-30 1994-10-13 Voest Alpine Ind Anlagen Process for the gasification of sewage sludge

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US3264096A (en) * 1963-12-19 1966-08-02 United States Steel Corp Method of smelting iron ore
DE2304369B1 (en) * 1973-01-26 1974-05-09 Mannesmann Ag, 4000 Duesseldorf Method and device for the pyrolytic build-up of waste materials
FR2293494A1 (en) * 1974-12-06 1976-07-02 Arbed PROCESS FOR OBTAINING LIQUID IRON
DE2713864A1 (en) * 1977-03-29 1978-10-05 Wijk O Prodn. of clean gas contg. hydrogen and carbon mon:oxide - by gasification of coal in metal melt
US4187672A (en) * 1977-11-17 1980-02-12 Rasor Associates, Inc. Apparatus for converting carbonaceous material into fuel gases and the recovery of energy therefrom
WO1980002149A1 (en) * 1979-04-12 1980-10-16 Boliden Ab A method for recovering oil and/or gas from carbon aceous materials
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GB2098625A (en) * 1981-05-20 1982-11-24 Ips Interproject Service Ab Carbon gasification method

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE1000419A3 (en) * 1987-03-23 1988-12-06 Elsentooling Ireland Ltd Continuous metal prodn. from oxidic mineral - by smelting and redn. in catalyst bath in through-furnace
EP0433674A1 (en) * 1989-12-18 1991-06-26 Outokumpu Oy Method for producing zinc by means of iron melt reduction
WO1992001492A1 (en) * 1990-07-24 1992-02-06 Molten Metal Technology, Inc. Forming carbon dioxide in multi-phase molten bath
US5322547A (en) * 1992-05-05 1994-06-21 Molten Metal Technology, Inc. Method for indirect chemical reduction of metals in waste
WO1993022001A1 (en) * 1992-05-05 1993-11-11 Molten Metal Technology, Inc. Method for indirect chemical reduction of metals in waste
US5324341A (en) * 1992-05-05 1994-06-28 Molten Metal Technology, Inc. Method for chemically reducing metals in waste compositions
US5358549A (en) * 1992-05-05 1994-10-25 Molten Metal Technology, Inc. Method of indirect chemical reduction of metals in waste
WO1993025277A1 (en) * 1992-06-08 1993-12-23 Molten Metal Technology, Inc. Method for treating organic waste
WO1993025278A1 (en) * 1992-06-08 1993-12-23 Molten Metal Technology, Inc. Method and appartus for treating organic waste
US6066771A (en) * 1993-04-06 2000-05-23 Ausmelt Limited Smelting of carbon-containing material
US5537940A (en) * 1993-06-08 1996-07-23 Molten Metal Technology, Inc. Method for treating organic waste
US5615626A (en) * 1994-10-05 1997-04-01 Ausmelt Limited Processing of municipal and other wastes
WO2001054774A1 (en) * 2000-01-28 2001-08-02 Tribovent Verfahrensentwicklung Gmbh Method for burning metal- or metal oxide containing fuels, especially petroleum coke
CN110951966A (en) * 2019-12-23 2020-04-03 中南大学 A method for harmless disposal of electroplating sludge

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DE3203435A1 (en) 1983-08-11

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