DE624856C - Process for removing aluminum and iron from copper alloys - Google Patents

Process for removing aluminum and iron from copper alloys

Info

Publication number
DE624856C
DE624856C DEL87802D DEL0087802D DE624856C DE 624856 C DE624856 C DE 624856C DE L87802 D DEL87802 D DE L87802D DE L0087802 D DEL0087802 D DE L0087802D DE 624856 C DE624856 C DE 624856C
Authority
DE
Germany
Prior art keywords
iron
copper alloys
removing aluminum
copper
aluminum
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
DEL87802D
Other languages
German (de)
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to DEL87802D priority Critical patent/DE624856C/en
Application granted granted Critical
Publication of DE624856C publication Critical patent/DE624856C/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • C22B15/00—Obtaining copper
    • C22B15/0026—Pyrometallurgy
    • C22B15/006—Pyrometallurgy working up of molten copper, e.g. refining

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  • 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 zur Entfernung von Aluminium und Eisen aus Kupferlegierungen Gegenstand der Erfindung ist ein Verfahren zur Entfernung von Aluminium und Eisen aus Kupferlegierungen, insbesondere aus Kupfer-Zinn- und Kupfer-Zink-Legierungen, bei dem der Aluminium- und Eisengehalt der angewendeten Werkstoffe in einfacher und bequemer Weise beseitigt wird. Diese Metalle bewirken, daß die aus den Kupferlegierungen hergestellten Gußstücke porös und wenig haltbar sind.Process for removing aluminum and iron from copper alloys The invention relates to a method for removing aluminum and iron from copper alloys, in particular from copper-tin and copper-zinc alloys, in which the aluminum and iron content of the materials used in a simple and conveniently eliminated. These metals cause the copper alloys castings produced are porous and not very durable.

Zur Entfernung von Aluminium und Eisen wird nach der Erfindung der Schmelze Natriumpyrosulfat in Mischung mit anderen an sich bekannten Flußmitteln, und zwar Flußspat, Kieselsäure, Kupferoxyd und koh-' lensaurem Kalk, zugesetzt.To remove aluminum and iron, according to the invention, the Melt sodium pyrosulphate mixed with other known fluxes, fluorspar, silicic acid, copper oxide and carbonate of lime were added.

Als besonders gut geeignete Mischung wurde die folgende fertiggestellt: q.o Gewichtsbeile pulverisiertes Natrium- pyrosulfat, 2o - Flußspat, 1o - Kieselsäure (Sand), 2o - Kupferoxyd und 10 - kohlensaurer Kalk. Die Bestandteile werden in gepulvertem Zustande gründlich miteinander gemischt und von .der Mischung auf i oo kg Guß i kg (i %) zugefügt.The following was completed as a particularly suitable mixture: qo weight axes of powdered sodium pyrosulfate, 2o - fluorspar, 1o - silica (sand), 2o - copper oxide and 10 - carbonate of lime. The constituents are thoroughly mixed with one another in the powdered state and added from the mixture to i oo kg of cast i kg (i%).

Ausführungsbeispiel 5o kg Kupfer, 3 5 kg Zink und i 5 kg Altmessing werden in einem Tiegel eingeschmolzen. In das zum Gießen fertige Metallbad wird i kg der obenerwähnten Mischung eingerührt: Dadurch werden Aluminium und Eisen in de Schlacke übergeführt.Embodiment 50 kg copper, 35 kg zinc and 15 kg old brass are melted in a crucible. In the metal bath ready for casting i kg of the above-mentioned mixture stirred in: this causes aluminum and iron to be mixed in de slag transferred.

Dieses Reinigungsverfahren kann bei Metallgüssen, wie Rotguß, Bronze-, Neusilber und Kupferguß, angewandt werden.This cleaning process can be used for metal castings such as gunmetal, bronze, German silver and cast copper can be used.

Claims (1)

PATENTANSPRUCH: Verfahren zur Entfernung von Aluminium und Eisen aus geschmolzenen Kupferlegierungen, :dadurch gekennzeichnet, daß dem Metallbad leine Mischung von Natriumpyrosulfat, Flußspat, Kieselsäure, Kupferoxyd und kohlensaurem Kalk zugesetzt wird.PATENT CLAIM: Process for removing aluminum and iron from molten copper alloys, characterized in that the metal bath is leash Mixture of sodium pyrosulphate, fluorspar, silicic acid, copper oxide and carbonate Lime is added.
DEL87802D 1932-07-29 1932-07-29 Process for removing aluminum and iron from copper alloys Expired DE624856C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEL87802D DE624856C (en) 1932-07-29 1932-07-29 Process for removing aluminum and iron from copper alloys

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEL87802D DE624856C (en) 1932-07-29 1932-07-29 Process for removing aluminum and iron from copper alloys

Publications (1)

Publication Number Publication Date
DE624856C true DE624856C (en) 1936-01-29

Family

ID=7286390

Family Applications (1)

Application Number Title Priority Date Filing Date
DEL87802D Expired DE624856C (en) 1932-07-29 1932-07-29 Process for removing aluminum and iron from copper alloys

Country Status (1)

Country Link
DE (1) DE624856C (en)

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