DE954237C - Process for separating copper and zinc compounds from oxidic materials - Google Patents

Process for separating copper and zinc compounds from oxidic materials

Info

Publication number
DE954237C
DE954237C DEG16112A DEG0016112A DE954237C DE 954237 C DE954237 C DE 954237C DE G16112 A DEG16112 A DE G16112A DE G0016112 A DEG0016112 A DE G0016112A DE 954237 C DE954237 C DE 954237C
Authority
DE
Germany
Prior art keywords
copper
zinc
oxidic
zinc compounds
separating copper
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
DEG16112A
Other languages
German (de)
Inventor
Dipl-Chem Hermann Dupre
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.)
Evonik Operations GmbH
Original Assignee
TH Goldschmidt 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 TH Goldschmidt AG filed Critical TH Goldschmidt AG
Priority to DEG16112A priority Critical patent/DE954237C/en
Application granted granted Critical
Publication of DE954237C publication Critical patent/DE954237C/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
    • C22B3/00Extraction of metal compounds from ores or concentrates by wet processes
    • CCHEMISTRY; METALLURGY
    • C01INORGANIC CHEMISTRY
    • C01GCOMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
    • C01G9/00Compounds of zinc
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22BPRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B15/00Obtaining copper
    • C22B15/0063Hydrometallurgy
    • 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

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

Description

Verfahren zur Trennung von Kupfer- und Zinkverbindungen aus oxydischen Materialien Die Aufarbeitung von oxydischen, gleichzeitig Kupfer und Zink enthaltenden Materialien erfolgt z. B. durch reduzierendes Schmelzen im Schachtofen mit Schlacken oder durch Abdestillieren des Zinks durch reduzierendes Erhitzen, wobei man das Zink als Metall oder durch nachträgliche Oxydation als Oxyd gewinnen.kann.Process for the separation of copper and zinc compounds from oxidic Materials The processing of oxidic materials containing copper and zinc at the same time Materials is done e.g. B. by reducing melting in the shaft furnace with slag or by distilling off the zinc by reducing heating, whereby the Zinc can be obtained as metal or as oxide by subsequent oxidation.

Das vorgeschlagene Verfahren zielt nicht darauf hin, die Komponenten in Form der reinen Metalle zu gewinnen bzw. zu isolieren, sondern primär in eine solche Form überzuführen, welche für die Weiterverarbeitung in der chemischen Industrie besonders geeignet ist. Dies wird in einfacher Weise dadurch erreicht, daß man das oxydische Material einem Glühprozeß unter reduzierenden Bedingungen bei solchen Temperaturerz unterwirft, bei welchen einerseits eine Sinterung sowohl des oxydischen als auch des reduzierten Materials nicht eintritt, andererseits lediglich die oxydischen Kupferverbindungen, nicht aber die oxydischen Zinkverbindungen reduziert werden. Das ganz oder teilweise oxydische Material wird unterhalb seiner Sinterungsternperatur und unterhalb des Siedepunktes von Zink, vorzugsweise bei q.oo bis 700° C; reduzierend erhitzt, wobei das gesamte als oxydische Kupferverbindungen vorliegende Kupfer in Metall übergeführt wird. Durch diesen Prozeß wird ein Material gewonnen, aus welchem die oxydischen Zinkverbindungen in einfacher Weise dadurch vom Kupfer abgetrennt werden, daß man das Material unter Ausschluß von Sauerstoff in Mineralsäuren einträgt, wobei die oxydischen Zinkverbindungen in Lösung gehen und vom ungelösten Rückstand, der das metallische Kupfer enthält, abfiltriert werden. Infolge der sehr feinen Verteilung des elementaren Kupfers eignet sich dieser Rückstand besonders gut als Ausgangsprodukt für die Herstellung beliebiger Kupferverbindungen. Beispiel i Oxydisches, kupfer- und zinkhaltiges Material, welches 6o"/o Zn0, 17°/o CuO sowie SiO2 und Kohlenstoff als Verunreinigungen enthält, wird in einem Drehrohrofen im CO-Strom bei 6oo° C geglüht. Nach dem Abkühlen in reduzierender Atmosphäre löst man aus dem Reduktionsprodukt das vorhandene Zn 0 mit Hilfe von verdünnter Schwefelsäure heraus und filtriert.The proposed method does not aim at the components to extract or isolate in the form of pure metals, but primarily in one such form to be converted for further processing in the chemical industry is particularly suitable. This is achieved in a simple manner by the fact that oxidic material an annealing process under reducing conditions in such Subject to temperature ore, in which on the one hand a sintering of both the oxidic as well as the reduced material does not occur, on the other hand only the oxidic Copper compounds, but not the oxidic zinc compounds, are reduced. The completely or partially oxidic material is below its sintering temperature and below the boiling point of zinc, preferably at q.oo to 700 ° C; reducing heated, with all copper present as oxidic copper compounds in metal is convicted. Through this process a material is obtained from which the oxidic zinc compounds can be separated from the copper in a simple manner, that one enters the material in the absence of oxygen in mineral acids, wherein the oxidic zinc compounds go into solution and from the undissolved residue, the the metallic copper contains, are filtered off. As a result of the very fine distribution of elemental copper, this residue is particularly suitable as a starting product for the production of any copper connections. Example i Oxydic, copper and zinc-containing material, which contains 60 "/ o Zn0, 17% CuO as well as SiO2 and carbon contains as impurities, is in a rotary kiln in a CO stream at 600 ° C annealed. After cooling in a reducing atmosphere, it is released from the reduction product the existing Zn 0 with the help of dilute sulfuric acid out and filtered.

Die Weiterverarbeitung der Zinksulfatlösung und des im Filtrationsrückstand befindlichen feinverteilten Kupfers erfolgt in beliebiger Weise nach bekannten Verfahren. . Beispiel 2 2o Teile oxydisches, kupfer- und zinkhaltiges Material, welches 70 °/a Zn 0 und i o °/a Cu 0 sowie Si 02 als Verunreinigungen enthält, werden mit i Teil Kohlenstaub gemischt und bei 700° C im C02- und N2-Strom geglüht. Nach dem Abkühlen des Reaktionsgemisches in reduzierender Atmosphäre löst man das Zn O mit Salzsäure heraus und filtriert.The further processing of the zinc sulphate solution and that in the filtration residue The finely divided copper located there is carried out in any manner according to known methods. . Example 2 2o parts of oxidic, copper- and zinc-containing material, which 70 ° / a contains Zn 0 and 10 ° / a Cu 0 and Si 02 as impurities, i Partly mixed coal dust and annealed at 700 ° C in a stream of C02 and N2. After this Cooling the reaction mixture in a reducing atmosphere dissolves the Zn O with it Hydrochloric acid out and filtered.

Die Weiterverarbeitung der Zinkchloridlösung und des feinverteilten Kupfers im Rdltrationsrückstand erfolgt nach bekannten Verfahren.The further processing of the zinc chloride solution and the finely divided Copper in the residue is carried out according to known methods.

Claims (1)

PATENTANSPRUCH: Verfahren zur Trennung von Kupfer- und Zinkverbindungen aus oxydischen kupfer- und zinkhaltigen Materialien, dadurch gekennzeichnet, daß das Material unterhalb seiner Sinterungstemperatur und unterhalb des Siedepunktes von Zink, vorzugsweise zwischen q.oo und 7oo° C, reduzierend geglüht und das Zinkoxyd aus dem Reaktionsgemisch mit Mineralsäuren unter Ausschluß von Oxydationsmitteln gelöst wird, während das Kupfer in metallischer Form im Filterrückstand verbleibt. PATENT CLAIM: Process for separating copper and zinc compounds from oxidic copper and zinc-containing materials, characterized in that the material is annealed in a reducing manner below its sintering temperature and below the boiling point of zinc, preferably between q.oo and 700 ° C, and the zinc oxide is removed the reaction mixture is dissolved with mineral acids with the exclusion of oxidizing agents, while the copper remains in metallic form in the filter residue.
DEG16112A 1954-12-28 1954-12-28 Process for separating copper and zinc compounds from oxidic materials Expired DE954237C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEG16112A DE954237C (en) 1954-12-28 1954-12-28 Process for separating copper and zinc compounds from oxidic materials

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEG16112A DE954237C (en) 1954-12-28 1954-12-28 Process for separating copper and zinc compounds from oxidic materials

Publications (1)

Publication Number Publication Date
DE954237C true DE954237C (en) 1956-12-13

Family

ID=7120597

Family Applications (1)

Application Number Title Priority Date Filing Date
DEG16112A Expired DE954237C (en) 1954-12-28 1954-12-28 Process for separating copper and zinc compounds from oxidic materials

Country Status (1)

Country Link
DE (1) DE954237C (en)

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