EP0885977B1 - Gefässvorrichtung zur Behandlung von Metallschmelzen - Google Patents

Gefässvorrichtung zur Behandlung von Metallschmelzen Download PDF

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Publication number
EP0885977B1
EP0885977B1 EP97490020A EP97490020A EP0885977B1 EP 0885977 B1 EP0885977 B1 EP 0885977B1 EP 97490020 A EP97490020 A EP 97490020A EP 97490020 A EP97490020 A EP 97490020A EP 0885977 B1 EP0885977 B1 EP 0885977B1
Authority
EP
European Patent Office
Prior art keywords
receptacle
liquid metal
receptacles
tilting
discharging
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP97490020A
Other languages
English (en)
French (fr)
Other versions
EP0885977A1 (de
Inventor
Jean Marie Debert
Jean Yves Dauphin
Jean Charles Tissier
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.)
Baudelet SA
Original Assignee
Baudelet SA
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 Baudelet SA filed Critical Baudelet SA
Priority to AT97490020T priority Critical patent/ATE206479T1/de
Priority to EP97490020A priority patent/EP0885977B1/de
Priority to DE69707111T priority patent/DE69707111T2/de
Priority to ES97490020T priority patent/ES2165574T3/es
Publication of EP0885977A1 publication Critical patent/EP0885977A1/de
Application granted granted Critical
Publication of EP0885977B1 publication Critical patent/EP0885977B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D99/00—Subject matter not provided for in other groups of this subclass
    • F27D99/007—Partitions
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D1/00—Treatment of fused masses in the ladle or the supply runners before casting
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D41/00—Casting melt-holding vessels, e.g. ladles, tundishes, cups or the like
    • B22D41/04—Casting melt-holding vessels, e.g. ladles, tundishes, cups or the like tiltable
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B21/00—Obtaining aluminium
    • C22B21/06—Obtaining aluminium refining
    • C22B21/064—Obtaining aluminium refining using inert or reactive gases
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B9/00—General processes of refining or remelting of metals; Apparatus for electroslag or arc remelting of metals
    • C22B9/006—General processes of refining or remelting of metals; Apparatus for electroslag or arc remelting of metals with use of an inert protective material including the use of an inert gas
    • 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
    • F27B3/06—Hearth-type furnaces, e.g. of reverberatory type; Tank furnaces with movable working chambers or hearths, e.g. tiltable, oscillating or describing a composed movement
    • 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
    • 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
    • F27B3/04—Hearth-type furnaces, e.g. of reverberatory type; Tank furnaces of multiple-hearth type; of multiple-chamber type; Combinations of hearth-type furnaces
    • F27B3/045—Multiple chambers, e.g. one of which is used for charging
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D3/00—Charging; Discharging; Manipulation of charge
    • F27D2003/0085—Movement of the container or support of the charge in the furnace or in the charging facilities
    • F27D2003/0089—Rotation about a horizontal or slightly inclined axis
    • F27D2003/009—Oscillations about a horizontal axis; Rocking
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D7/00—Forming, maintaining, or circulating atmospheres in heating chambers
    • F27D7/06—Forming or maintaining special atmospheres or vacuum within heating chambers

Definitions

  • the invention relates to an atmosphere treatment device controlled by a liquid material, such as a metal in the liquid state.
  • the invention relates more particularly but not exclusively to a device for refining aluminum, such as so-called secondary aluminum.
  • Document DE-3536277 describes a process for separation by distillation / condensation by heating and continuous movement in metal resonance liquid in an oven.
  • the liquid metal contained in an enclosure passes through the device of the document DE-3536277, at least one transverse barrier separating two compartments, the oscillation of the oven being longitudinal, this transverse barrier leading to increased mixing of the liquid metal.
  • the oscillations of the oven described in document DE-3536277 are carried out preferably according to the natural frequency of the movement of liquid metal, leading to vigorous mixing of the liquid metal.
  • a result which the invention aims to obtain is a device which can be, without concession, used on a metallurgical industrial site.
  • the device 1 is particularly, but not exclusively, suitable for ripening aluminum.
  • the means 5 for acting on the pressure of a substantially gaseous fluid, such as a body in the gaseous and / or vaporized state, which is in the enclosure 4, consists of an adequate pumping means 5.
  • the confinement enclosure 4 is delimited by a wall 4B which, by determining a certain volume at least above the two receptacles 3, 6 and the exposure surface 8, covers them in a sealed manner.
  • the installation of the invention allows that before and / or during the transfer of the liquid material from one receptacle to another, said material can be treated using a conventional technique.
  • the construction of the device of the invention can therefore call upon simple members whose assembly can be easily ensured in order to obtain a particularly remarkable robustness and reliability.
  • the support 11 is for example constituted by the ground 11.
  • the device is designed in a reversible manner, that is, in such a way that the liquid material transferred from the receptacle first in the second receptacle (figure 2) can be, if necessary, transferred of the second receptacle in the first receptacle ( Figure 3) and so on the case if necessary.
  • the device comprises a plane PS of symmetry intersecting at the exposure surface 8 and on either side of which the receptacles first 3 and second 6 are arranged.
  • the plane of symmetry PS contains the tilt axis 7D.
  • the device authorizes several transfers of the liquid material from the first receptacle to the second receptacle, then vice versa so as to perfect the treatment of said liquid material.
  • the guide means 7E and the motor means 7F are advantageously constituted by a curved rack which, supporting the structure 10 of the device, is in turn placed on toothed wheels which are guided in rotation relative to a support 11, such as the ground, and at least one of which is moved by a motor member 7F for rotating.
  • the wall 4B which determines the volume of the enclosure 4 above the receptacles 3, 6 is a curved wall which turns a concave face 4A towards said receptacles 3, 6.
  • the wall 4B which, by determining a certain volume at least above the two receptacles 3, 6 and of the exposure surface 8, cap them so waterproof, consists of a chamber which houses these receptacles 3, 6, the surface 8 as well as the supporting structure.
  • the device 1 comprises a heating means 13 at least for the keeping the material 2 contained in the receptacle at a determined temperature first 3.
  • the wall 4B which, by determining a certain volume at least above the two receptacles 3, 6 and the surface 8 exposure, the caps tightly, on the one hand, consists of a wall 4B sealing connected to receptacles 3, 6 so as to extend both to above these receptacles 3, 6 and of the exposure surface 8 and, on the other hand, incorporates the heating means 13.
  • At least a 3D fraction of the 3A face which determines the useful volume of the first receptacle 3 is connected to the edge 3C known as the spill of this receptacle 3 and, this 3D fraction of face 3A is shaped and arranged so that when the supporting structure 10 of the receptacles is in second position S1, the material 2 initially contained in the receptacle first 3, was poured into the receptacle second 6 by passing over the surface 8 exhibition.
  • At least a fraction 6D of the face 6A which determines the useful volume of the second receptacle 6 is connected to the edge 6C, called the spill of this receptacle 6, and this fraction 6D from the front 6A is connected, on the one hand, to the edge 6C said to pour this receptacle 6 and, on the other hand to the face 4A of the wall 4B enclosure facing receptacles 3, 6, so that when the structure 10 carrying the receptacles 3, 6 is in the second position S1, the material 2 spilled from the first receptacle 3 is retained in the receptacle second 6.
  • At least one of the walls 3B, 6B, 4B which delimit one of the elements 3, 4 that are the first receptacle 3 and the enclosure 4, comprises at least one opening 14/15 for loading the material 2 intended to be treated.
  • At least one of the walls 4B, 6B which delimit one of the elements that are the enclosure 4 and the second receptacle 6, comprises at least one opening 14/15 which, known as the unloading of the treated material 2, has an edge 15C of unloading and, at least the second receptacle 6 is carried by means 16 of discharge by controlled discharge of the liquid material 2 which it contains by above the edge 15C presented for this purpose by the discharge opening 15.
  • Each opening 14, 15 for loading and / or unloading is fitted with a watertight closing door 14A, 15A.
  • At least the second receptacle 6 comprises means 16A, 16B, 16C ensuring its guidance and its displacement from a primary position P2 in which it contains freely the material 2 treated, towards an opposite second position S2 which is acquired at the end of the unloading of the material 2 over the edge 15C at this effect of the discharge opening 15.
  • the discharge opening 14/15 is reserved in a wall portion 4B which extends in a plane intersecting the discharge edge 3C of the first receptacle 3 and, at least the second receptacle 6 is carried by a means 16A for guiding around an axis 16B substantially parallel to said edge of unloading 15 C.
  • the means 7 of tilting is arranged between the receptacles 3, 6 and the means 16 of spill.
  • it is the supporting structure 10 of the receptacles 3, 6 and enclosure 4 which is, at least indirectly, placed under the influence of the means 16A for discharging by dumping.
  • the device comprises means 17 for guiding the flow of the liquid material to through the opening 14/15 of unloading which means opposes the flow liquid material from one of the receptacles to the other.
  • this guide means consists of a wall 17.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Metallurgy (AREA)
  • Materials Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Organic Chemistry (AREA)
  • Physical Or Chemical Processes And Apparatus (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • Coating With Molten Metal (AREA)
  • Treatment Of Steel In Its Molten State (AREA)
  • Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)

Claims (16)

  1. Vorrichtung zur Behandlung eines Flüssigmetalls (2) unter kontrollierter Atmosphäre, wie zum Beispiel eine Reinigungsbehandlung, wobei diese mit einer selben Struktur (10) fest verbundene Vorrichtung (1) umfaßt:
    einen ersten Auffang (3) eines Nutzvolumens, das durch wenigstens eine Seite (3A) einer Wand (3B) definiert wird;
    einen zweiten Auffang (6) eines Nutzvolumens, das durch wenigstens eine Seite (6A) einer Wand (6B) definiert wird;
    einen Schutzbehälter (4), der die sich oberhalb der zwei Auffänge (3, 6) befindende kontrollierte Atmosphäre enthält, wobei dieser Schutzbehälter (4) wenigstens durch eine Wand (4B) begrenzt wird, die oberhalb der zwei Auffänge (3, 6) angebracht ist und sie luftdicht mit einem Nutzvolumens abdeckt, das wenigstens durch eine Seite (4A) einer Wand (4B) definiert wird,
    eine Entladungsöffnung (15) des behandelten Flüssigmetalls, die im zweiten Auffang (6) angeordnet ist,
    ein Mittel zum Einwirken (5) auf den Druck einer deutlich gasförmigen Flüssigkeit, die sich im Schutzbehälter (4) befindet,
    ein Heizmittel (13) wenigstens für die Aufrechterhaltung einer bestimmten Temperatur des im ersten Auffang (3) enthaltenen Flüssigmetalls,
    ein Mittel zum Kippen (7A) der Struktur (10) zwischen einer Position P1 und einer Position S1, wobei die Kippachse (7D) deutlich parallel zu einem Rand (3C) des ersten Auffangs (3) ist.
       diese Vorrichtung (1) ist dadurch gekennzeichnet, daß:
    die zwei Auffänge (3, 6) auf der einen und der anderen Seite einer Fläche zum Aussetzen (8) des Flüssigmetalls der kontrollierten Atmosphäre angeordnet sind, wobei die Längsachse dieser Fläche zum Aussetzen (8) parallel zur Längsachse der Vorrichtung und zur Kippachse (7D) ist,
    diese Fläche zum Aussetzen (8) bildet den oberen Teil einer Wand in umgekehrter abgestumpfter V-Form, wobei diese Fläche zum Aussetzen durch einen sogenannten Auskipprand (3C) mit der Seite (3A) des ersten Auffangs (3) verbunden ist, wobei diese Fläche zum Aussetzen (8) durch einen sogenannten Ausgießrand (6C) mit der Seite (6A) des zweiten Auffangs (6) verbunden ist,
    die zwei Auffänge (3, 6) und die Fläche zum Aussetzen (8) sind derart angeordnet, daß zwischen den Positionen P1 und S1 das kontrollierte Ausgießen des im ersten Auffang (3) enthaltenen Flüssigmetalls (2) auf die Fläche zum Aussetzen (8) die Bildung einer Schicht (9) einer bestimmten Dicke (E) zur Behandlung des Metalls induziert, wobei die freie Seite (9A) der Schicht (9) im Schutzbehälter (4) ausgesetzt ist, wobei das behandelte Metall sich anschließend durch einfache Schwerkraft in den zweiten Auffang (6) ergießt.
  2. Vorrichtung gemäß Anspruch 1, dadurch gekennzeichnet, daß der Auskipprand (3C) deutlich geradlinig ist.
  3. Vorrichtung gemäß Anspruch 1 oder 2, dadurch gekennzeichnet, daß der Rand (6C) deutlich geradlinig ist.
  4. Vorrichtung gemäß Anspruch 1 bis 3, dadurch gekennzeichnet, daß er eine Symmetrieebene PS umfaßt, die an der Fläche zum Aussetzen (8) schneidet, wobei der erste (3) und der zweite (6) Auffang auf der einen und der anderen Seite der Ebene PS angeordnet sind.
  5. Vorrichtung gemäß Anspruch 4, dadurch gekennzeichnet, daß die Ebene PS die Kippachse (7D) umfaßt.
  6. Vorrichtung gemäß Anspruch 1 bis 5, dadurch gekennzeichnet, daß das Mittel zum Kippen (7A) umfaßt:
    eine gekrümmte Zahnstange, die die Struktur (10) trägt und anliegend auf den Zahnrädern angebracht ist, die in Rotation im Verhältnis zu einem Träger (11) geführt wird, wobei diese Zahnstange ein Führungsmittel dieser Struktur (10) um ihre Kippachse (7D) bildet;
    ein Antriebsmittel (7F) zum Antrieb wenigstens eines der Zahnräder in Rotation;
    ein Steuermittel (7G) des Antriebsmittels (7F).
  7. Vorrichtung gemäß Anspruch 1 bis 6, dadurch gekennzeichnet, daß das Mittel zum Einwirken (5) auf den Druck des deutlich gasförmigen Fluids, das sich im Schutzbehälter (4) befindet, ein Pumpmittel ist.
  8. Vorrichtung gemäß Anspruch 1 bis 7, dadurch gekennzeichnet, daß die Wand (4B), die die Auffänge (3, 6) abdeckt, gekrümmt ist und ihre Konkavität zu besagten Auffängen (3, 6) dreht.
  9. Vorrichtung gemäß Anspruch 8, dadurch gekennzeichnet, daß besagte Wand (4B), die die Auffänge (3, 6) luftdicht abdeckt, das Heizmittel (13) des Flüssigmetalls umfaßt.
  10. Vorrichtung gemäß Anspruch 1 bis 9, dadurch gekennzeichnet, daß die Entladungsöffnung (15) in einem Teil der die Auffänge (3, 6) abdeckenden Wand (4B) reserviert ist, die sich in einer am Auskipprand (3C) des ersten Auffangs (3) schneidenden Ebene erstreckt.
  11. Vorrichtung gemäß Anspruch 10, dadurch gekennzeichnet, daß die Struktur (10) durch ein Auskippmittel (16) getragen wird, das über den Rand (15C) der Entladungsöffnung die kontrollierte Entladung des im zweiten Auffang (6) behandelten Flüssigmetalls (2) erlaubt, wobei das Auskippmittel (16) ein Führungsmittel (16A) der Struktur (10) um eine zu besagtem Entladungsrand (15C) deutlich parallele Achse (16B) umfaßt.
  12. Vorrichtung gemäß Anspruch 11, dadurch gekennzeichnet, daß das Auskippmittel (16) umfaßt:
    ein Antriebsmittel (16C)
    ein Steuermittel (16D) dieses Antriebsmittels (16C).
  13. Vorrichtung gemäß Anspruch 1 bis 12, dadurch gekennzeichnet, daß es auf der Höhe der Entladungsöffnung (15) und / oder der Ladeöffnung (14) ein Führungsmittel (17) umfaßt, wie zum Beispiel eine Wand, das geeignet ist, das Ausfließen des Flüssigmetalls (2) durch die besagte(n) Öffnung(en) zu führen, wobei dieses Führungsmittel (17) das Ausfließen des Flüssigmetalls aus einem der Auffänge in den anderen verhindert.
  14. Anwendung einer Vorrichtung gemäß der Darstellung in den Ansprüchen 1 bis 13 zum Affinieren von Aluminium beim zweiten Schmelzen.
  15. Umsetzungsverfahren einer Vorrichtung gemäß Anspruch 1 bis 13, dadurch gekennzeichnet daß es vor dem Transfer des Flüssigmetalls von einem Auffang in den anderen eine Behandlungsstufe dieses Flüssigmetalls umfaßt, wobei diese Stufe aus der Gruppe ausgewählt ist, umfassend die Reinigung, den Zusatz von Elementen, das Durchspülen, das Durchblasen unter neutralen Gasen.
  16. Umsetzungsverfahren einer Vorrichtung gemäß Anspruch 1 bis 13 oder Anspruch 15, dadurch gekennzeichnet, daß es wenigstens ein Kippen der Position P1 in die Position S1 und ein umgekehrtes Kippen umfaßt, wobei dieses umgekehrte Kippen zum Umfüllen des Flüssigmetalls aus dem zweiten Auffang (6) in den ersten Auffang (3) führt, wobei dieses doppelte Kippen gegebenenfalls wiederholt werden kann, um die Behandlung des Flüssigmetalls (2) zu vollenden.
EP97490020A 1997-06-17 1997-06-17 Gefässvorrichtung zur Behandlung von Metallschmelzen Expired - Lifetime EP0885977B1 (de)

Priority Applications (4)

Application Number Priority Date Filing Date Title
AT97490020T ATE206479T1 (de) 1997-06-17 1997-06-17 Gefässvorrichtung zur behandlung von metallschmelzen
EP97490020A EP0885977B1 (de) 1997-06-17 1997-06-17 Gefässvorrichtung zur Behandlung von Metallschmelzen
DE69707111T DE69707111T2 (de) 1997-06-17 1997-06-17 Gefässvorrichtung zur Behandlung von Metallschmelzen
ES97490020T ES2165574T3 (es) 1997-06-17 1997-06-17 Dispositivo para el tratamiento de un material liquido, tal como un metal en estado liquido.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP97490020A EP0885977B1 (de) 1997-06-17 1997-06-17 Gefässvorrichtung zur Behandlung von Metallschmelzen

Publications (2)

Publication Number Publication Date
EP0885977A1 EP0885977A1 (de) 1998-12-23
EP0885977B1 true EP0885977B1 (de) 2001-10-04

Family

ID=8230066

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97490020A Expired - Lifetime EP0885977B1 (de) 1997-06-17 1997-06-17 Gefässvorrichtung zur Behandlung von Metallschmelzen

Country Status (4)

Country Link
EP (1) EP0885977B1 (de)
AT (1) ATE206479T1 (de)
DE (1) DE69707111T2 (de)
ES (1) ES2165574T3 (de)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2484335A (en) * 2010-10-07 2012-04-11 Ronald Gloudie Sherwen Rotary heat exchanger

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE447017C (de) * 1925-12-23 1927-07-18 Emil Friedrich Russ Schaukelofen
LU30546A1 (de) * 1950-02-08
CH304450A (de) * 1950-08-21 1955-01-15 Roentgen Paul Ing Dr Einrichtung mit Trommelofen zur Behandlung von im Schmelzfluss befindlichem Aluminium und Aluminiumlegierungen mit Chlorgas.
DE1060555B (de) * 1952-02-22 1959-07-02 Vaw Ver Aluminium Werke Ag Schmelzofen fuer Metalle, der um eine Querachse schaukelnd bewegbar ist
GB892073A (en) * 1958-06-19 1962-03-21 Werner Helling Improvements relating to the removal of impurities from aluminium and aluminium alloys
US4090916A (en) * 1976-02-17 1978-05-23 Alumax Mill Products, Inc. Salt cake evaporator apparatus
JPS5535875A (en) * 1978-09-06 1980-03-13 Koa Oil Co Ltd Swung baking furnace
DE3536277A1 (de) * 1985-10-11 1987-04-16 Leybold Heraeus Gmbh & Co Kg Verfahren und vorrichtung zum trennen von metallen durch destillation und kondensation

Also Published As

Publication number Publication date
DE69707111T2 (de) 2002-07-11
ATE206479T1 (de) 2001-10-15
EP0885977A1 (de) 1998-12-23
DE69707111D1 (de) 2001-11-08
ES2165574T3 (es) 2002-03-16

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