DE508071C - Process for the recovery of zinc from impure zinc liquors, e.g. Chlorinated gravel charred from the lye - Google Patents
Process for the recovery of zinc from impure zinc liquors, e.g. Chlorinated gravel charred from the lyeInfo
- Publication number
- DE508071C DE508071C DED48791D DED0048791D DE508071C DE 508071 C DE508071 C DE 508071C DE D48791 D DED48791 D DE D48791D DE D0048791 D DED0048791 D DE D0048791D DE 508071 C DE508071 C DE 508071C
- Authority
- DE
- Germany
- Prior art keywords
- zinc
- lye
- metals
- chlorinated
- gravel
- 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
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
- C22B19/00—Obtaining zinc or zinc oxide
- C22B19/20—Obtaining zinc otherwise than by distilling
- C22B19/26—Refining solutions containing zinc values, e.g. obtained by leaching zinc ores
-
- Y—GENERAL 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
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 Gewinnung von Zink aus unreinen Zinklaugen, z. B. aus den Laugen chlorierend gerösteter Kiesabbrände Zur Gewinnung von Zink aus unreinen Zinklangen ist eine vorherige Reinigung der Lauen erfor lerlich. Diese Reilrigung bereitet oft große Schwierigkeiten, fast unüberwindliche, wenn große Mengen Eisen als Oxydtrlsalze vorhanden sind. Eisenoxvdulsalze können durch Fällung mit den gebräuchlichen Fällmitteln, Oxyden oder Carbonaten der Erdalkalien oder Alkalien, nicht von Zinksalzen getrennt werden wie die Eisenoxvdsalze. Eine Oxydation und gleichzeitige F*-illtrng der Eisenoxvdulsalze ist zwar verschiedelrtlich vorgeschlagen worden, konnte bislang aber noch, nicht mit wirtschaftlichen Nutzen durchgeführt werden. Die Oxydation cler Eisensalze durch Chlor ist nur dann wirtschaftlich, wenn Chlor als Nebenprodukt erhalten wird. Die Oxydation durch Luft ist zeitraubend und nur in komplizierten Apparaten möglich.Process for the extraction of zinc from impure zinc liquors, e.g. B. off the lyes of roasted gravel burns in a chlorinating manner For the extraction of zinc from impure Zinc longs, the lukewarm must be cleaned beforehand. This Reilrigung often causes great difficulties, almost insurmountable when large amounts of iron are present as oxide salts. Eisenoxvdulsalze can by precipitation with the usual Precipitants, oxides or carbonates of alkaline earths or alkalis, not of zinc salts are separated like the iron oxide salts. An oxidation and simultaneous F * -illtrng the iron oxide salt has been proposed in various places, but has so far been able to do so but yet, cannot be done with economic benefit. The oxidation The iron salts produced by chlorine are only economical if chlorine is a by-product is obtained. Oxidation by air is time consuming and only complex Devices possible.
Bei der Verarbeitung der Laugen chlorierend gerösteter, kupferhaltiger Pvritabbrände fällt eine Endlauge, die rieben Zink- und Natriurnsalzen noch große Mengen Eiseno--#,_ydulsalze, bedingt durch die Fällung des Kupfers mit metallischem Eisen, enthält. Speziell aus diesen Laugen konnte bislang das Zink nicht mit wirtschaftlichem Nutzen gewonnen werden, so daß diese Endlaugen in die Abwässer geleitet werden mußten, der Zinkgehalt der Abbrände also verlorenging.When processing the lye, it is roasted in a chlorinating manner and contains more copper Pvrite burns down a final liquor, which rubbed zinc and sodium salts still large Amounts of ferrous salts, due to the precipitation of copper with metallic Contains iron. Up to now, zinc could not be economically produced from these alkalis in particular Benefits are gained, so that these final liquors had to be discharged into the sewage, the zinc content of the burn-ups was therefore lost.
Irn vorliegenden Verfahren ist nun ein Weg gefunden, aus den Laugen chlorierend gerösteter kupferhaltiger Kiesabbrände wie überhaupt aus unreinen Zinklaugen auf einfachem Wege und mit wirtschaftlichem Nutzen wenigstens einen Teil des Zinkes in einer zur Weiterverarbeitung geeigneten Form zu gewinnen. Das Verfahren besteht darin, daß vor der Zementation des Kupfers mit Eisen die Lauge unterteilt wird, so daß der eine Laugenteil nach Entfernung der schädlichen Metalle auf Zink weiterverarbeitet wird und diese Metalle in den Arbeitsgang für die restliche Laugenmenge zur Gewinnung von Kupfer und den Edelmetallen eingefügt werden.In the present process a way has now been found to get out of the lye Chlorinated roasted copper-containing gravel burns as well as from impure zinc lye at least part of the zinc in a simple way and with economic benefit in a form suitable for further processing. The procedure persists in that the lye is subdivided before the copper is cemented with iron, so that one part of the lye is processed further on zinc after the harmful metals have been removed and these metals in the operation for the remaining amount of lye for recovery of copper and the precious metals.
In (lern ersten Teil der Latrge sind als schädlichste Verunreinigungen Kupfer-, Eisenoxyrl- und Arsensalze vorhanden. Diese können durch Hydrate oder Carbonate der Metalle, Erdalkalien oder Alkalien ohne Schwierigkeiten ausgefällt werden, so daß nach eventueller weiterer Reinigung mit metallischem Zinkstaub oder Chlorkali: zwecks Entfernung der letzten Spuren von Fremdmetallen, ,wie Silber, Kupfer, Kobalt, Nickel, Blei, Eisen, Arsen usw., eine reine Zinklauge fällt, die zur Darstellung von Lithopone oder sonstigen reinen Zinkverbindungen - benutzt werden kann.In (learn first part of the latrge are considered the most harmful impurities Copper, iron oxyryl and arsenic salts present. These can be through hydrates or carbonates of metals, alkaline earths or alkalis are precipitated without difficulty, so that after any further cleaning with metallic zinc dust or chlorinated potash: to remove the last traces of foreign metals, such as silver, copper, cobalt, Nickel, lead, iron, arsenic, etc., a pure zinc lye that is used for depiction of lithopone or other pure zinc compounds - can be used.
Die Fällung von Metallen, wie Kupfer, Eisen usw., durch Hydrate oder Carbonate der Metalle, Erdalkalien oder Alkalien ist bekannt. Seine Ausführung im Großbetriebe, speziell für obige Laugen, scheiterte jedoch an der Schwierigkeit der wirtschaftlichen Weiterverarbeitung des ausgefällten Metallniederschlages. Im vorliegenden Verfahren ist diese Frage gelöst, indem der Metallniederschlag zwecks Gewinnung der wertvollen Metalle, wie Kupfer, Silber usw., in den Verarbeitungsprozeß der restlichen Laugenmenge vor der Zementation zugesetzt wird, so daß die Metalle bei der Zementation wiedergewonnen werden. Am geeignetsten hierfür ist natürlich die in der Kupferlauge vorliegende freie Säure.The precipitation of metals, such as copper, iron, etc., by hydrates or Carbonates of metals, alkaline earths or alkalis are known. Its execution in Large companies, especially for the above caustic solutions, failed because of the difficulty the economic further processing of the precipitated metal precipitate. in the The present method resolves this issue by using the metal precipitate for the purpose of Extraction of valuable metals, such as copper, silver, etc., in the manufacturing process the remaining amount of lye is added before cementation, so that the metals recovered during cementation. The most suitable for this is of course the free acid present in the copper liquor.
Dieses Verfahren gestattet also, auf einfache Art und Weise einen Teil des Zinks in hüttempännisch verwertbarer Weise wirtschaftlich zu gewinnen.This method allows a simple way To obtain part of the zinc economically in a way that can be used by the ironworks.
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DED48791D DE508071C (en) | 1925-09-19 | 1925-09-19 | Process for the recovery of zinc from impure zinc liquors, e.g. Chlorinated gravel charred from the lye |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DED48791D DE508071C (en) | 1925-09-19 | 1925-09-19 | Process for the recovery of zinc from impure zinc liquors, e.g. Chlorinated gravel charred from the lye |
Publications (1)
Publication Number | Publication Date |
---|---|
DE508071C true DE508071C (en) | 1930-09-24 |
Family
ID=7051421
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DED48791D Expired DE508071C (en) | 1925-09-19 | 1925-09-19 | Process for the recovery of zinc from impure zinc liquors, e.g. Chlorinated gravel charred from the lye |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE508071C (en) |
-
1925
- 1925-09-19 DE DED48791D patent/DE508071C/en not_active Expired
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