AT120846B - Process for recovering copper from copper waste eyes. - Google Patents

Process for recovering copper from copper waste eyes.

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Publication number
AT120846B
AT120846B AT120846DA AT120846B AT 120846 B AT120846 B AT 120846B AT 120846D A AT120846D A AT 120846DA AT 120846 B AT120846 B AT 120846B
Authority
AT
Austria
Prior art keywords
copper
recovering
eyes
waste eyes
waste
Prior art date
Application number
Other languages
German (de)
Original Assignee
Ig Farbenindustrie 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 Ig Farbenindustrie Ag filed Critical Ig Farbenindustrie Ag
Application granted granted Critical
Publication of AT120846B publication Critical patent/AT120846B/en

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  • Solid-Sorbent Or Filter-Aiding Compositions (AREA)

Description

  

   <Desc/Clms Page number 1> 
 



  Verfahren zur Rückgewinnung von Kupfer aus   Kupferabfallallgell.   
 EMI1.1 
   von 2-5%. 



  Es hat sich nun gezeigt, dass man die Kupferadsorption mit weit geringeren Mengen Adsorptions-   material durehführen kann, wenn man als   Adsorptionsmittel anorganische, grossoberflächige   Stoffe, wie
Kieselsäure, Aktivkohle, Bleicherde,   verwendet. Bei Kieselsäure z.   B. erreicht man eine Beladung mit   10% Kupfer. 



  Aus den erhaltenen Absorptionsverbindungen löst man dann das Kupfer mit verdünnten oder   konzentrierten Säuren heraus, wobei selbstverständlich zur Erhaltung reiner Kupfersalzlösungen die völlige Unangreifbarkeit der angewandten Absorptionsmittel durch Säuren Bedingung ist. Die hiebei verwendeten Absorptionsmittel können, wie ferner gefunden wurde, nach Entfernung des   Säureüber-   schusses ohne weitere Vorbehandlung wieder benutzt werden. 



   Das geschilderte Verfahren bietet für die Entfernung des Kupfers aus dem Fällwasser den Vorteil, dass sie ohne das vielfach übliche Austreiben des Ammoniaks, d. h. bei normaler Temperatur ohne Wärme- 
 EMI1.2 
 sulfat herausgelöst. Die als Absorptionsmittel verwendete Kieselsäure wird von   überschüssiger   Säure durch Waschen befreit und kann dann wieder erneut benutzt werden. 

**WARNUNG** Ende DESC Feld kannt Anfang CLMS uberlappen**.



   <Desc / Clms Page number 1>
 



  Process for the recovery of copper from waste copper gelatin.
 EMI1.1
   from 2-5%.



  It has now been shown that copper adsorption can be carried out with far smaller amounts of adsorption material if inorganic substances with a large surface area are used as adsorbents, such as
Silicic acid, activated carbon, fuller's earth are used. In the case of silica, for. B. one achieves a loading with 10% copper.



  The copper is then dissolved out of the absorption compounds obtained with dilute or concentrated acids, whereby, of course, in order to preserve pure copper salt solutions, the absolute non-attackability of the absorbers used by acids is a condition. The absorbents used here can, as has also been found, be used again without further pretreatment after removing the excess acid.



   For the removal of the copper from the precipitation water, the described method offers the advantage that it can be carried out without the common expulsion of the ammonia, ie. H. at normal temperature without heat
 EMI1.2
 sulfate dissolved out. The silica used as the absorbent is freed from excess acid by washing and can then be used again.

** WARNING ** End of DESC field may overlap beginning of CLMS **.

Claims (1)

PATENT-ANSPRUCH : EMI1.3 **WARNUNG** Ende CLMS Feld Kannt Anfang DESC uberlappen**. PATENT CLAIM: EMI1.3 ** WARNING ** End of CLMS field may overlap beginning of DESC **.
AT120846D 1928-04-25 1929-04-19 Process for recovering copper from copper waste eyes. AT120846B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE120846X 1928-04-25

Publications (1)

Publication Number Publication Date
AT120846B true AT120846B (en) 1931-01-10

Family

ID=5656694

Family Applications (1)

Application Number Title Priority Date Filing Date
AT120846D AT120846B (en) 1928-04-25 1929-04-19 Process for recovering copper from copper waste eyes.

Country Status (1)

Country Link
AT (1) AT120846B (en)

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