DE589988C - Process for refining and refining metals or alloys - Google Patents

Process for refining and refining metals or alloys

Info

Publication number
DE589988C
DE589988C DESCH99817D DESC099817D DE589988C DE 589988 C DE589988 C DE 589988C DE SCH99817 D DESCH99817 D DE SCH99817D DE SC099817 D DESC099817 D DE SC099817D DE 589988 C DE589988 C DE 589988C
Authority
DE
Germany
Prior art keywords
refining
alloys
metals
chlorine
phosphorus pentachloride
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
DESCH99817D
Other languages
German (de)
Inventor
Dr Roland Sterner-Rainer
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.)
Karl Schmidt GmbH
Original Assignee
Karl Schmidt 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 Karl Schmidt GmbH filed Critical Karl Schmidt GmbH
Priority to DESCH99817D priority Critical patent/DE589988C/en
Application granted granted Critical
Publication of DE589988C publication Critical patent/DE589988C/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
    • C22B21/06Obtaining aluminium refining
    • C22B21/064Obtaining aluminium refining using inert or reactive gases

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 Veredeln und Raffinieren von Metallen oder Legierungen Die Erfindung betrifft ein Verfahren zum Veredeln und Raffinieren von Metallen, und zwar insbesondere von Aluminiumlegierungen, mit Hilfe von Phosphorpentachlorid, (las in die zu behandelnden Metallschmelzen eingebracht wird.Process for refining and refining metals or alloys The invention relates to a method for refining and refining metals, in particular of aluminum alloys, with the help of phosphorus pentachloride, (read into the molten metal to be treated.

Es ist seit langem bekannt, daß die Behandlung von Metallschmelzen mit Chlor einen günstigen Effekt auf die Reinigung des Bades und insbesondere auf die Dichtigkeit des Gusses hervorruft. Abgesehen von gasförmigem Chlor war dabei auch schon der Vorschlag gemacht, Verbindungen des Chlors zu verwenden, die sich im Bade bei den Schmelztemperaturen zersetzen und hierbei das Chlor abgeben. An derartigen Chloriden sind z. B. das Siliciumchlorid, Zinkchlorid, Aluminiumchlorid, Tetrachlorkohlenstoff. T etrachloräthan und Titantetrachlorid genannt.It has long been known that the treatment of molten metal with chlorine a beneficial effect on the cleaning of the bathroom and in particular on the tightness of the casting causes. Apart from gaseous chlorine was included also already made the suggestion to use compounds of the chlorine, which are decompose in the bath at the melting temperatures and thereby release the chlorine. At such chlorides are z. B. the silicon chloride, zinc chloride, aluminum chloride, Carbon tetrachloride. Called tetrachloroethane and titanium tetrachloride.

Demgegenüber besitzt das gemäß Erfindung verwendete Phosphorpentachlorid den Vorteil, (Maß seine Zersetzung relativ langsam erfolgt, so daß eine wesentlich bessere Ausnutzung des verwendeten -Materials erfolgt. Es kommt bei den Chlorreinigungsverfahren wesentlich darauf an, daß die Reaktion nicht zu stürmisch erfolgt, weil hierdurch viel Chlor ungenutzt ins Freie entweicht, und. (Maß andererseits die Zersetzung auch nicht zu langsam erfolgt, weil hierdurch viel Zeit verlor engeht und die Gefahr neuer Gasaufnahme durch die Schmelze besteht. Gerade das Phosphorpentachlorid hat sich in beiden Beziehungen als ein sehr wertvolles Reinigungsmittel erwiesen, so daß es den bisher vorgeschlagenen vorzuziehen ist. Die langsame Zersetzung ergibt dabei eine erheblich bessere Ausnutzung des Mittels und damit eine Verbilligung, weil bereits geringere Mengen genügen, um die gewollten Effekte zu erzielen. Das Mittel hat außerdem den Vorteil, (Maß auch die zweite Komponente der Verbindung, (las Phosphor, in vielen Fällen günstig wirkt. Die Einwirkung des Phosphors auf Kupferlegierungen ist bekannt. Darüber hinaus hat ller Phosphorzusatz aber auch für Aluminium-Silicium-Legierungen günstige Wirkungen, weil die Saigerung .des Siliciums unterdrückt wird. ---an verbindet also mit der Verwendung des Phosphorpentachlorids eine Rcilie günstiger Einwirkungen auf das Schmelzball, während manche der bisher vorgeschlagenen Chloride, wie z. B. das Zinkchlorid, Legierungsbestandteile in das Bad einführen, die unter Umständen unerwünscht sind.In contrast, the phosphorus pentachloride used according to the invention has the advantage (degree its decomposition takes place relatively slowly, so that a substantial Better utilization of the material used takes place. It comes with the chlorine cleaning process it is essential that the reaction is not too stormy, because this results in it a lot of unused chlorine escapes into the open, and. (Measure, on the other hand, the decomposition also not done too slowly, because a lot of time is lost and the danger there is new gas uptake by the melt. Especially the phosphorus pentachloride has proved to be a very valuable cleaning agent in both respects, so that it is preferable to those proposed so far. The slow decomposition results at the same time a significantly better utilization of the means and thus a cheaper price, because even smaller amounts are enough to achieve the desired effects. That Medium also has the advantage (measure also the second component of the connection, (read phosphorus, has a beneficial effect in many cases. The effect of phosphorus on Copper alloys are known. In addition, however, there is also an addition of phosphorus beneficial effects for aluminum-silicon alloys because the segregation of the silicon is suppressed. --- an therefore connects with the use of phosphorus pentachloride a number of favorable effects on the enamel ball, while some of the hitherto proposed chlorides, such as. B. the zinc chloride, alloy components in the Introduce bath, which may be undesirable.

Die erforderlichen Mengen an Phosphorpentachlorid sind z. B. bei der Reinigung von K. S. Seewasserlegierungen 0,2 °/o vom Gewicht des zu reinigenden Metalls, während z. B. nach denAngaben von Rosenhain bei Verwendung von Titantetrachlorid d. ccm pro Pfund Einsatz, d. h. also fast I 0""" gebraucht werden.The required amounts of phosphorus pentachloride are z. B. in the cleaning of K. S. sea water alloys 0.2% of the weight of the to cleaning metal, while z. B. according to the specifications of Rosenhain when using of titanium tetrachloride d. cc per pound of stake; d. H. so almost I 0 "" "needed will.

Claims (1)

PATL:NTANSPRUCII: Verfahren zum Veredeln und Raffinieren von Metallen oder Legierungen, insbesondere Aluminium und seinen Legierungen, mit Hilfe von Halogenen, dadurch gekennzeichnet, daß Phosphorpentachlorid in das Bad eingeführt wird.PATL: NTANSPRUCII: Process for refining and refining metals or alloys, in particular aluminum and its alloys, with the help of halogens, characterized in that phosphorus pentachloride is introduced into the bath.
DESCH99817D 1932-12-13 1932-12-13 Process for refining and refining metals or alloys Expired DE589988C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DESCH99817D DE589988C (en) 1932-12-13 1932-12-13 Process for refining and refining metals or alloys

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DESCH99817D DE589988C (en) 1932-12-13 1932-12-13 Process for refining and refining metals or alloys

Publications (1)

Publication Number Publication Date
DE589988C true DE589988C (en) 1933-12-19

Family

ID=7446686

Family Applications (1)

Application Number Title Priority Date Filing Date
DESCH99817D Expired DE589988C (en) 1932-12-13 1932-12-13 Process for refining and refining metals or alloys

Country Status (1)

Country Link
DE (1) DE589988C (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE974869C (en) * 1944-08-19 1961-05-18 Knapsack Ag Process for cleaning and grain refinement of aluminum-containing magnesium alloys
DE1128152B (en) * 1956-12-29 1962-04-19 Foundry Flux Ltd Process for the treatment of melts made of aluminum or magnesium alloys
DE4438539C1 (en) * 1994-10-28 1995-11-09 Kraft Guenther Aluminium or alloy melt purificn. to remove trace metals, hydrogen and oxidic plankton

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE974869C (en) * 1944-08-19 1961-05-18 Knapsack Ag Process for cleaning and grain refinement of aluminum-containing magnesium alloys
DE1128152B (en) * 1956-12-29 1962-04-19 Foundry Flux Ltd Process for the treatment of melts made of aluminum or magnesium alloys
DE4438539C1 (en) * 1994-10-28 1995-11-09 Kraft Guenther Aluminium or alloy melt purificn. to remove trace metals, hydrogen and oxidic plankton
EP0709474A1 (en) 1994-10-28 1996-05-01 Günther Prof. Dr. rer. nat. Kraft Process for the treatment of melts of aluminium and its alloys

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