AT33799B - Process for the electrolytic extraction of copper from its ores. - Google Patents

Process for the electrolytic extraction of copper from its ores.

Info

Publication number
AT33799B
AT33799B AT33799DA AT33799B AT 33799 B AT33799 B AT 33799B AT 33799D A AT33799D A AT 33799DA AT 33799 B AT33799 B AT 33799B
Authority
AT
Austria
Prior art keywords
copper
ores
solution
electrolytic extraction
lime
Prior art date
Application number
Other languages
German (de)
Inventor
Lucien Jumau
Original Assignee
Lucien Jumau
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 Lucien Jumau filed Critical Lucien Jumau
Application granted granted Critical
Publication of AT33799B publication Critical patent/AT33799B/en

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  • Manufacture And Refinement Of Metals (AREA)
  • Electrolytic Production Of Metals (AREA)

Description

  

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   Nach der Elektrolyse wird die Lösung, die ein Gemisch aus Ammoniumsulfat und-sulfit enthält, zur Auflösung einer neuen Menge von Kupferoxyduloxydsulfit benutzt. Da diese Lösung sich mit Ammoniumsulfat immer mehr anreichert, wird ein Teil davon von Zeit zu Zeit entnommen und behufs Wiedergewinnung des Ammoniaks, das zur Auflösung des Kupferoxydul-   oxydsulfits   erforderlich ist, in der oben angegebenen Weise behandelt. 



   Zur Wiedergewinnung des Ammoniaks kann man ganz allgemein eine erdalkalische Base verwenden ; es wird aber dem Kalk wegen seines geringen Preises der Vorzug gegeben. Im übrigen können in vielen Fällen auch diese geringen Kosten fortfallen, denn die meisten Kupfererze enthalten eine geringe Menge Kalk, Magnesium-oder Baryumoxyd, meistens in der Form von Karbonaten, so dass das Erz selbst an Stelle von Kalk verwendet werden kann, um das Ammoniakgas wieder zu gewinnen.

   Die durch Elektrolyse erschöpfte Lösung kann zur Gewinnung von schwefliger Säure verwendet werden, indem man vor der Behandlung mit Kalk diese   Lösung   mit der nach der Sulfitierung zurückbleibenden Lösung, die ein   Molekül Schwefelsäure enthält,   
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 Beim Mischen und Kochen dieser Lösung mit der von der   Suintierung   herrührenden Lösung findet die folgende Reaktion statt : 
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   PATENT-ANSPRÜCHE : 
1. Verfahren zur elektrolytischen Gewinnung von Kupfer aus seinen Erzen, wobei das zu Kupferoxyd geröstete Erz mittels einer ammoniakalischen Lösung von Ammoniumsulfat oder-sulfit'ausgelaugt wird, dadurch gekennzeichnet, dass in die erhaltene Lösung direkt oder nach 
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   After the electrolysis, the solution, which contains a mixture of ammonium sulphate and sulphite, is used to dissolve a new amount of copper oxy-sulfite. As this solution becomes more and more enriched with ammonium sulphate, part of it is withdrawn from time to time and treated in the manner indicated above for the purpose of recovering the ammonia which is necessary to dissolve the copper oxy-sulfite.



   In general, an alkaline earth base can be used to recover the ammonia; but lime is preferred because of its low price. In addition, these low costs can be omitted in many cases, because most copper ores contain a small amount of lime, magnesium or barium oxide, mostly in the form of carbonates, so that the ore itself can be used instead of lime to produce the ammonia gas to win again.

   The solution exhausted by electrolysis can be used to obtain sulphurous acid by mixing this solution with the solution remaining after sulphitation, which contains one molecule of sulfuric acid, before treatment with lime.
 EMI2.2
 When this solution is mixed and boiled with the solution resulting from the suinting, the following reaction occurs:
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   PATENT CLAIMS:
1. A method for the electrolytic extraction of copper from its ores, wherein the ore roasted to copper oxide is leached by means of an ammoniacal solution of ammonium sulfate or ammonium sulfite, characterized in that in the solution obtained directly or after
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Claims (1)

selhweflige Säure durch Behandlung der durch Elektrolyse erschöpften Lösung mit der nach der Sulfitierung zurückbleibenden Lösung wieder gewonnen wird. Sulphurous acid is recovered by treating the solution, which has been exhausted by electrolysis, with the solution remaining after sulphiting.
AT33799D 1905-12-11 1905-12-11 Process for the electrolytic extraction of copper from its ores. AT33799B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT33799T 1905-12-11

Publications (1)

Publication Number Publication Date
AT33799B true AT33799B (en) 1908-07-25

Family

ID=3549638

Family Applications (1)

Application Number Title Priority Date Filing Date
AT33799D AT33799B (en) 1905-12-11 1905-12-11 Process for the electrolytic extraction of copper from its ores.

Country Status (1)

Country Link
AT (1) AT33799B (en)

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