AT78599B - Process for the extraction of precious metals from sea water. - Google Patents

Process for the extraction of precious metals from sea water.

Info

Publication number
AT78599B
AT78599B AT78599DA AT78599B AT 78599 B AT78599 B AT 78599B AT 78599D A AT78599D A AT 78599DA AT 78599 B AT78599 B AT 78599B
Authority
AT
Austria
Prior art keywords
sea water
extraction
precious metals
coal
sol
Prior art date
Application number
Other languages
German (de)
Inventor
Emil Dr Baur
Oskar Dr Nagel
Original Assignee
Emil Dr Baur
Oskar Dr Nagel
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 Emil Dr Baur, Oskar Dr Nagel filed Critical Emil Dr Baur
Application granted granted Critical
Publication of AT78599B publication Critical patent/AT78599B/en

Links

Classifications

    • 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

  • Water Treatment By Sorption (AREA)
  • Manufacture And Refinement Of Metals (AREA)

Description

  

   <Desc/Clms Page number 1> 
 



  Verfahren zur Gewinnung von Edelmetallen aus Meerwasser. 



   Wenn man nach dem in der deutschen Patentschrift   Nr.   272654 beschriebenen Verfahren zur Gewinnung des im Meerwasser enthaltenen Goldes das Meerwasser durch ein   Bett mit zerkleinerten Koks filtriert, so begegnet man dem Übelstande, da# die Arbeits-   periode sehr lang ist. Hierunter wird die Zeit verstanden, während der durch ein gegebenes Koksfilter filtriert werden muss, bis die gewünschte Anreicherung an Gold eingetreten ist. 



   Zur Behebung dieses hinderlichen Umstandes kann man, wie gefunden wurde, folgendermassen vorgehen. 



   Man lässt zu dem zu behandelnden, beispielsweise durch einen Kanal fliessenden Meer- wasser eine kolloide Lösung von Kohle   hinzufliessen,   deren   Menge-z. B.   100   cm : J     lOprozentiges Kohiehydrosol   auf 1 m3 Meerwasser-nach ihrer Adsorptionskraft und dem Goldgehalt des Meerwassers zu bemessen ist, und setzt nach einer kurzen, nach Minuten zählenden Zeit, die zur Herstellung des Adsorptionsgleichgewichtes erforderlich ist, eine solche Menge eines   Eisenhydroxydsots   hinzu, die zur Flockung der Kohle gerade notwendig ist. Hierauf werden die Flocken in einer geeigneten Schnellfiltrationsanlage abfiltriert. 



   Das Verfahren beruht darauf, dass ein negatives Sol durch ein positives ausgeflockt wird. Daher kann an die Stelle des Eisenhydroxydsols auch Aluminiumhydroxydsol oder ein anderes passendes positives Sol treten. 



   Was die Herstellung von kolloiden Lösungen von Kohle anbelangt, so werden solche 
 EMI1.1 
 Alkalien erhalten. Auch chinesische Tusche und die als   nAquadag@ bezeichneten Graphit-   suspensionen fallen unter den Begriff der kolloiden   Kohleiösungen.   

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



   <Desc / Clms Page number 1>
 



  Process for the extraction of precious metals from sea water.



   If one filters the sea water through a bed of crushed coke according to the method described in German patent specification No. 272654 for the recovery of the gold contained in the sea water, one encounters the problem that the working period is very long. This is understood to mean the time during which a given coke filter has to be filtered until the desired enrichment in gold has occurred.



   As was found, the following procedure can be used to remedy this problem.



   A colloidal solution of coal is allowed to flow into the sea water to be treated, for example flowing through a canal, the amount of which - z. B. 100 cm: 10 percent carbohydrosol per 1 m3 of seawater - is to be measured according to its adsorption power and the gold content of the seawater, and after a short time counting after minutes, which is necessary to establish the adsorption equilibrium, such an amount of iron hydroxide is added , which is just necessary to flocculate the coal. The flakes are then filtered off in a suitable rapid filtration system.



   The method is based on the fact that a negative sol is flocculated by a positive one. Therefore, aluminum hydroxide sol or another suitable positive sol can also be used in place of the iron hydroxide sol.



   As for the manufacture of colloidal solutions of coal, so will such
 EMI1.1
 Get alkalis. Chinese ink and the graphite suspensions designated as nAquadag @ also fall under the term of colloidal carbon solutions.

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

Claims (1)

PATENT-ANSPRUCH: Verfabren zur Gewinnung von Edelmetallen aus Meerwasser, dadurch gekennzeichnet, dass das Mehrwasser mit einer kolloidon Lösung von Kohle versetzt und hierauf die liolilt, EMI1.2 **WARNUNG** Ende CLMS Feld Kannt Anfang DESC uberlappen**. PATENT CLAIM: Procedure for the extraction of precious metals from sea water, characterized in that the excess water is mixed with a colloid solution of coal and then the liolilt, EMI1.2 ** WARNING ** End of CLMS field may overlap beginning of DESC **.
AT78599D 1917-01-18 1918-03-07 Process for the extraction of precious metals from sea water. AT78599B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE78599X 1917-01-18

Publications (1)

Publication Number Publication Date
AT78599B true AT78599B (en) 1919-10-10

Family

ID=5638285

Family Applications (1)

Application Number Title Priority Date Filing Date
AT78599D AT78599B (en) 1917-01-18 1918-03-07 Process for the extraction of precious metals from sea water.

Country Status (1)

Country Link
AT (1) AT78599B (en)

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