DE959762C - Process for the extraction or refining of aluminum using highly volatile aluminum halides - Google Patents

Process for the extraction or refining of aluminum using highly volatile aluminum halides

Info

Publication number
DE959762C
DE959762C DEP12254D DEP0012254D DE959762C DE 959762 C DE959762 C DE 959762C DE P12254 D DEP12254 D DE P12254D DE P0012254 D DEP0012254 D DE P0012254D DE 959762 C DE959762 C DE 959762C
Authority
DE
Germany
Prior art keywords
aluminum
chamber
refining
extraction
reaction
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
Application number
DEP12254D
Other languages
German (de)
Inventor
Dr-Ing Paul Weiss
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.)
Vereinigte Aluminium Werke AG
Original Assignee
Vereinigte Aluminium 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 Vereinigte Aluminium Werke AG filed Critical Vereinigte Aluminium Werke AG
Priority to DEP12254D priority Critical patent/DE959762C/en
Application granted granted Critical
Publication of DE959762C publication Critical patent/DE959762C/en
Expired legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22BPRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B21/00Obtaining aluminium
    • C22B21/0038Obtaining aluminium by other processes
    • C22B21/0046Obtaining aluminium by other processes from aluminium halides

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Manufacture And Refinement Of Metals (AREA)

Description

Verfahren zum Gewinnen bzw. Raffinieren von Aluminium mittels leichtflüchtiger Aluminiumhalogenide Bei der bekannten Gewinnung von reinem Aluminium aus unreinem Aluminium, Aluminiumlegierungen, intermetallischen Aluminiumverbindungen, mit geeigneten Reduktionsmitteln vermengten Aluminiummineralien usw. durch Behandlung der Ausgangsstoffe mit Halogeniddampf, vorzugsweise Aluminiumhalogeniddampf, läßt sich das Aluminium von seinen schwerflüchtigen Beimengungen, wie Kupfer, Eisen, Mangan oder Silizium, praktisch vollständig trennen. Auch läßt es sich von dem leichterflüchtigen Magnesium scheiden, da sich dieses bei der Arbeitstemperatur mit dem angewandten Aluminiumhalogenid oder, falls ein anderes Halogenid zur Anwendung kommt, im Verlauf des Prozesses mit dem daraus entstehenden Alumi-niumhalogenid zu Magnesiumhalogenid und Aluminium umsetzt und so dem Prozeß entzogen wird. Dagegen gelang es bisher nicht, die leichterflüchtigen und mit dem Aluminiumhalogenid sich nicht zu stabilen salzartigen Verbindungen umsetzenden Metalle zu trennen. So war es z. B. bisher nicht möglich, ein zink- oder bleifreies Aluminium herzustellen, da diese Metalle zusammen mit dem Aluminium übergehen.Process for the extraction or refining of aluminum by means of volatile Aluminum halides In the known production of pure aluminum from impure Aluminum, aluminum alloys, aluminum intermetallic compounds, with suitable Reducing agents mixed aluminum minerals, etc. by treating the raw materials with halide vapor, preferably aluminum halide vapor, the aluminum of its non-volatile additions, such as copper, iron, manganese or silicon, practically completely separate. It can also be made from the more volatile magnesium separate, as this separates at the working temperature with the aluminum halide used or, if a different halide is used, during the course of the process with the resulting aluminum halide to form magnesium halide and aluminum implemented and thus withdrawn from the process. On the other hand, the more volatile ones have not yet succeeded and do not react with the aluminum halide to form stable salt-like compounds Separate metals. It was like that B. so far not possible, a zinc or lead free Manufacture aluminum, since these metals pass along with the aluminum.

Es wurde nun entgegen den Erwartungen gefunden, daß man bei der Behandlung mit Halogeniddampf auch ein Aluminium erhalten kann, das praktisch frei von leichterflüchtigen Metallen ist. Es zeigte sich nämlich, daß durch geeignete Wahl der Strömungsgeschwindigkeit und der Abkühlungsbedingungen des die Reaktionszone verlassenden Gasgemisches erreicht werden kann, das sich die leichterflüchtigen Metalle getrennt vom Aluminium niederschlagen. Erfindungsgemäß wird die Trennung der Kondensate so vorgenommen, daß wenigstens zwei hintereinanderliegende getrennte Kondensationszonen verwandt werden.It has now been found, contrary to expectations, that one in the treatment With halide vapor, an aluminum can also be obtained that is practically free of more volatile Metals. It was found that through a suitable choice of the flow rate and the cooling conditions of the gas mixture leaving the reaction zone can be that the more volatile metals separate from Knock down aluminum. According to the invention, the separation of the condensates is carried out in such a way that that at least two consecutive separate condensation zones related will.

Beispiele Bisherige Verfahrensweise. Die Ausgangslegierung enthielt 3'/o Zn. Nach 3 Stunden waren 75,3% des Einsatzes überdestilliert. Das Destillat enthielt 3,90/0.Examples Previous procedure. The starting alloy contained 3% Zn. After 3 hours, 75.3% of the feed had distilled over. The distillate contained 3.90 / 0.

Erfindungsgemäßes Verfahren. Die Ausgangslegierung enthielt 3'/o Zn. Nach 3 Stunden waren 70,i % abdestilliert. Die AI-Partie enthielt o,o2% Zn, die Zn-Partie enthielt 97,2'/o Zn.Method according to the invention. The starting alloy contained 3% Zn. After 3 hours, 70% had distilled off. The AI batch contained 0.02% Zn, the The Zn batch contained 97.2% Zn.

In besonderen Fällen ist es von Vorteil, den Ausgangsstoff im Reaktionsraum nicht wie in der Regel laufend zuzugeben oder in Abständen durch Zugabe neuen Materials zu ergänzen, sondern diskontinuierlich zu arbeiten und die eingebrachte Charge bis zum vollständigen Entzug des Aluminiums darin zu belassen und dann erst neu zu füllen oder auf einen zweiten Reaktionsraum umzustellen. Bei einer solchen Arbeitsweise kann der erfindungsgemäße Vorschlag auch so zur Anwendung kommen, daß zwei getrennt angeordnete Kondensationskammern verwandt werden und der erste Anteil, der reich an dem leichterflüchtigen Metall ist, in die eine Kammer und der an diesen Metallen freie Anteil in der zweiten Kammer zur Kondensation gebracht wird. Man erhält dabei in der ersten Kammer eine Aluminiumlegierung, in der zweiten Kammer praktisch reines Aluminium.In special cases it is advantageous to keep the starting material in the reaction space not to be added continuously, as is usually the case, or at intervals by adding new material to supplement, but to work discontinuously and the introduced batch up to leave it in for complete removal of the aluminum and only then to refill it or to switch to a second reaction room. With such a way of working the proposal according to the invention can also be used in such a way that two are separated arranged condensation chambers are used and the first portion, the rich on the more volatile metal is in one chamber and the one on these metals free fraction is brought to condensation in the second chamber. One receives thereby an aluminum alloy in the first chamber, and practically pure in the second chamber Aluminum.

Claims (2)

PATENTANSPRÜCHE; i. Verfahren zum Gewinnen bzw. Raffinieren von Aluminium durch Einwirkenlassen von Halogeniddampf auf Ausgangsstoffe, die neben Aluminium leichter als dieses flüchtige Metalle enthalten, die, wie Zink, durch den Aluminiumhalogeniddampf nicht zu salzartigen Halogenidverbindungen umgesetzt werden, und Niederschlagen des Aluminiums aus dem den Reaktionsraum verlassenden Gasgemisch, dadurch gekennzeichnet, daß Aluminium und leichterflüchtige Metalle in dem Gasgemisch durch fraktionierte Kondensation voneinander getrennt werden. PATENT CLAIMS; i. Process for the extraction or refining of aluminum by allowing halide vapor to act on starting materials, in addition to aluminum lighter than this contain volatile metals, like zinc, due to the aluminum halide vapor are not converted to salt-like halide compounds, and precipitate of the aluminum from the gas mixture leaving the reaction chamber, characterized in that that aluminum and more volatile metals in the gas mixture fractionated by Condensation can be separated from each other. 2. Verfahren nach Anspruch i, dadurch gekennzeichnet, daß der Reaktionsraum diskontinuierlich beschickt und entleert wird und daß der zunächst anfallende fremdmetallreicheAnteil in einer Kammer und der sodann reines Aluminium enthaltende Anteil des Reaktionsgases in einer zweiten Kammer fraktioniert kondensiert wird. In Betracht gezogene Druckschriften: Britische Patentschriften --,\Tr. 574 711, 5ä2 579, 562 1 o8, 569 47:2; USA.-Patentschriften Nr. 2 ,470 305, 2 470 3o6.2. The method according to claim i, characterized in that the reaction space is charged and emptied discontinuously and that the initially accumulating foreign metal-rich portion of the reaction gas is fractionally condensed in one chamber and the portion of the reaction gas which then contains pure aluminum is condensed in a second chamber. Documents considered: British Patents -, \ Tr. 574 71 1, 5-2 579, 562 1 o8, 569 47: 2; USA. Patent Nos. 2 470 305 2 470 3o6.
DEP12254D 1948-10-02 1948-10-02 Process for the extraction or refining of aluminum using highly volatile aluminum halides Expired DE959762C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEP12254D DE959762C (en) 1948-10-02 1948-10-02 Process for the extraction or refining of aluminum using highly volatile aluminum halides

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEP12254D DE959762C (en) 1948-10-02 1948-10-02 Process for the extraction or refining of aluminum using highly volatile aluminum halides

Publications (1)

Publication Number Publication Date
DE959762C true DE959762C (en) 1957-03-14

Family

ID=7363959

Family Applications (1)

Application Number Title Priority Date Filing Date
DEP12254D Expired DE959762C (en) 1948-10-02 1948-10-02 Process for the extraction or refining of aluminum using highly volatile aluminum halides

Country Status (1)

Country Link
DE (1) DE959762C (en)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB562108A (en) * 1943-01-13 1944-06-19 William Frederick Chubb Improved method of and apparatus for the condensation of metallic vapours
GB569472A (en) * 1942-07-29 1945-05-25 Ernest Priestley Newton Apparatus for manufacture of magnesium metal
GB574711A (en) * 1943-01-18 1946-01-17 John Lumsden Improvements relating to the purification of zinc, cadmium and magnesium by volatilisation
GB582579A (en) * 1944-04-19 1946-11-21 High Duty Alloys Ltd Improvements relating to the production or refining of aluminium
US2470306A (en) * 1946-03-27 1949-05-17 Int Alloys Ltd Process for the production and refining of metals
US2470305A (en) * 1944-04-19 1949-05-17 Int Alloys Ltd Process for the production and refining of aluminium

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB569472A (en) * 1942-07-29 1945-05-25 Ernest Priestley Newton Apparatus for manufacture of magnesium metal
GB562108A (en) * 1943-01-13 1944-06-19 William Frederick Chubb Improved method of and apparatus for the condensation of metallic vapours
GB574711A (en) * 1943-01-18 1946-01-17 John Lumsden Improvements relating to the purification of zinc, cadmium and magnesium by volatilisation
GB582579A (en) * 1944-04-19 1946-11-21 High Duty Alloys Ltd Improvements relating to the production or refining of aluminium
US2470305A (en) * 1944-04-19 1949-05-17 Int Alloys Ltd Process for the production and refining of aluminium
US2470306A (en) * 1946-03-27 1949-05-17 Int Alloys Ltd Process for the production and refining of metals

Similar Documents

Publication Publication Date Title
DE842059C (en) Process for the production of organosilicon halides
DE950815C (en) Process for the extraction of aluminum
DE959762C (en) Process for the extraction or refining of aluminum using highly volatile aluminum halides
DE3146246A1 (en) METHOD FOR PRODUCING 1,2-DICHLORETHANE
DE1173665B (en) Process for the extraction of aluminum
DE1668346B2 (en) PROCESS FOR THE PREPARATION OF 1,1,1-TRIFLUOROTRICHLORAETHANE BY REPOSITIONING
DE1132901B (en) Process for the preparation of pyrophoric silicon and polysilicon halides
DE870257C (en) Process for the preparation of alkylhalosilanes
DE2305924C3 (en) Process for the production of aluminum
DE902253C (en) Process for the production of pure aluminum alcoholates or pure aluminum hydroxide from aluminum alloys
US409668A (en) Hamilton young castner
DE716961C (en) Process for the preparation of 1,4-dichlorobutene-2
DE403507C (en) Process for the production of chemical compounds
DE530892C (en) Production of pure, anhydrous aluminum chloride
DE2051320C3 (en) Process for the purification of aliphatic dicarboxylic acid mixtures
DE862683C (en) Process for the production of aluminum from aluminum alloys by distillation
AT123814B (en) Process for the production of aluminum and aluminum alloys from master alloys.
DE967690C (en) Process for the preparation and extraction of aluminum using aluminum halide
DE887872C (en) Process for the simultaneous refining of aluminum and zinc alloys
DE559859C (en) Process for the production of aluminum and aluminum alloys
DE976700C (en) Process for the extraction of aluminum
AT211290B (en) Process for the production of isoprene
DE635387C (en) Process for the production of compact magnesium
DE491626C (en) Production of liquid potassium-sodium alloys
DE742330C (en) Process for separating aluminum from aluminum alloys by volatilizing the aluminum