METHOD FOR RECOVERING SILVER FROM USED DISPLAY PANEL

PROBLEM TO BE SOLVED: To provide a method for efficiently and safely separating and recovering silver from a used display panel containing the silver.SOLUTION: The used display panel is crushed and the silver contained in the used display panel is made to leach out by using mixed liquid of thiourea...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: HOSHINO ATSUSHI, KAWAKITA HIDETAKA, INOUE KATSUTOSHI, BISWAS BIPLOB KUMAR, OWATARI KEISUKE
Format: Patent
Sprache:eng
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Beschreibung
Zusammenfassung:PROBLEM TO BE SOLVED: To provide a method for efficiently and safely separating and recovering silver from a used display panel containing the silver.SOLUTION: The used display panel is crushed and the silver contained in the used display panel is made to leach out by using mixed liquid of thiourea aqueous solution and acid to produce a leachate, and the effective separation and recovery of the silver can be achieved by applying a metal replacement method (for example, adding zinc powder) to the leachate or by using activated carbon.