DE337806C - Process for the recovery of brass from cast ash and the like like - Google Patents

Process for the recovery of brass from cast ash and the like like

Info

Publication number
DE337806C
DE337806C DE1920337806D DE337806DD DE337806C DE 337806 C DE337806 C DE 337806C DE 1920337806 D DE1920337806 D DE 1920337806D DE 337806D D DE337806D D DE 337806DD DE 337806 C DE337806 C DE 337806C
Authority
DE
Germany
Prior art keywords
brass
ash
recovery
cast
cast ash
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
DE1920337806D
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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
Application granted granted Critical
Publication of DE337806C publication Critical patent/DE337806C/en
Expired legal-status Critical Current

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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
    • C22B7/00Working up raw materials other than ores, e.g. scrap, to produce non-ferrous metals and compounds thereof; Methods of a general interest or applied to the winning of more than two metals
    • C22B7/04Working-up slag
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00Technologies related to metal processing
    • Y02P10/20Recycling

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Manufacture And Refinement Of Metals (AREA)

Description

Verfahren zur Wiedergewinnung von Messing aus Gußasche u. dgl. Die Erfindung bezieht sich auf .ein Verfahren zur Wiedergewinnung von Messing aus Gußasche u. dgl., welche in den Gießtöpfen und Schmelztiegeln zurückbleibt, wenn das Messing aus ihnen ausgegossen wird.Method for recovering brass from cast ash and the like The invention relates to a method for recovering brass from cast ash and the like, which remains in the ladle pots and crucibles when the brass is poured out of them.

Es ist bereits bekannt, zur Wiedergewinnung von Metallen aus Abfallteilen diese zu schmelzen, auch ist schon bekannt, geschmolzenes Gut, zum Zwecke, ein gleichmäßiges Gemisch in der Legierung zu erhalten, umzurühren. Wenn es sich aber um Metall in sehr fein verteiltem Zustande handelt, ist durch ein bloßes Waschen und Sondern sowie durch ein Schmelzen die Wiedergewinnung des Metalles nicht möglich, weil ein großer Prozentsatz des Metalles in der Schlacke zurückbliebe und verlorenginge, und beim Schmelzen das Zink, welches in dem Messing enthalten ist, herausdestilliert würde.It is already known to recover metals from scrap parts To melt these, it is also known that molten goods, for the purpose of being uniform Mixture to get in the alloy, stir. But when it comes to metal in In a very finely divided state, is through a mere washing and separation as well as by melting the recovery of the metal not possible because a a large percentage of the metal would remain in the slag and be lost, and during melting the zinc contained in the brass is distilled out would.

Die Erfindung hilft diesem übelstand dadurch ab, daß die Gußasche zunächst auf einen Wärmegrad von i o5o bis i :25o' C erhitzt und die erhitzte Masse gerührt oder geknetet wird, wodurch das flüssige Messing sich zusammenballt und vereinigt, so daß es in Formen gegossen werden kann.The invention helps this nuisance by the fact that the casting ash first heated to a degree of heat of 1050 to i: 25o'C and the heated mass is stirred or kneaded, whereby the liquid brass agglomerates and united so that it can be poured into molds.

Die Erhitzung kann in einem Schmelztiegel oder in einem geeigneten Ofen erfolgen. Bei etwa 1 050°C wird die Masse weich. Es muß dann mit dem Kneten oder Rühren eingesetzt werden, und man muß diese Arbeit so lange fortsetzen, als sich noch Metall ansammelt.The heating can take place in a crucible or in a suitable one Oven. At around 1,050 ° C the mass becomes soft. It must then start with the kneading or stirring can be used, and this work must be continued as long as metal still accumulates.

Es ist wünschenswert, ein oder mehrere Floßmittel, wie z. B. Borax, Glas, Pottasche o. dgl., hierbei zu verwenden, welche mit den Unreinlichkeiten und den unreduzierten Oxyden eine Schmelzschlacke bilden und auch als ein flüssiger Abschluß der Oberfläche der geschmolzenen Masse dienen, und dadurch Oxydations- und Verflüchtigungsverluste verringern. Die so gebildete Schlacke wird einen gewissen Betrag von Kupfer und Zink enthalten, von denen das erstere auf elektrolytischem Wege wiedergewonnen werden kann. Eine größere Ausbeute an Messing kann erzielt werden, wenn man zu der Asche ein Reduktionsmittel hinzufügt, z. B. Holzkohle oder Borkupfer.It is desirable to have one or more raft means, such as. B. Borax, Glass, potash or the like, to be used here, which with the impurities and the unreduced oxides form a molten slag and also as a liquid Serve to close the surface of the molten mass, and thereby oxidize and reduce volatilization losses. The slag thus formed becomes a certain Amount of copper and zinc, the former of which is electrolytic Ways can be regained. A greater yield of brass can be achieved when adding a reducing agent to the ash, e.g. B. charcoal or boron copper.

Claims (1)

PATENT-ANsPRUcii: Verfahren zur Wiedergewinnung von Messing aus Gußasche u. dgl., welche in den Gießtöpfen oder Schmelztiegeln zurückbleibt, wenn das Messing ausgegossen ist, dadurch gekennzeichnet, daß diese Asche auf einen Wärmegrad zwischen i o5o bis 1 25o° C erhitzt und die geschmolzene Masse gerührt oder geknetet wird, wodurch das flüssige Messing sich zusammenhallt und vereinigt, so daß es in Gießformen gegossen werden kann.PATENT APPLICATION: Process for the recovery of brass from cast ash and the like, which remains in the ladle pots or crucibles when the brass is poured out, characterized in that this ash to a degree of warmth between Heated 1050 to 1250 ° C and stirred or kneaded the molten mass, whereby the liquid brass coalesces and unites, so that it is in casting molds can be poured.
DE1920337806D 1918-02-14 1920-01-15 Process for the recovery of brass from cast ash and the like like Expired DE337806C (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB337806X 1918-02-14

Publications (1)

Publication Number Publication Date
DE337806C true DE337806C (en) 1921-06-06

Family

ID=10357332

Family Applications (1)

Application Number Title Priority Date Filing Date
DE1920337806D Expired DE337806C (en) 1918-02-14 1920-01-15 Process for the recovery of brass from cast ash and the like like

Country Status (1)

Country Link
DE (1) DE337806C (en)

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