Method of recycling useful metal

A method of recycling useful metals is provided. The method enables useful metals including indium, zinc, yttrium, europium, lanthanum, terbium, gadolinium, antimony, lead, copper, tin, and silver to be recovered from wastes, such as abandoned flat panel displays, and recycled economically with smal...

Full description

Saved in:
Bibliographic Details
Main Authors UBUSAWA TOMOYUKI, FURUYAMA TOMOYUKI, TANAKA KUMPEI, MORIKAKU AKIHIRO, HOMMA TETSUYA
Format Patent
LanguageChinese
English
Published 08.12.2010
Subjects
APPARATUS THEREFOR
CHEMISTRY
DISPOSAL OF SOLID WASTE
ELECTROLYTIC OR ELECTROPHORETIC PROCESSES
FERROUS OR NON-FERROUS ALLOYS
METALLURGY
PERFORMING OPERATIONS
PRETREATMENT OF RAW MATERIALS
PROCESSES FOR THE ELECTROLYTIC PRODUCTION, RECOVERY ORREFINING OF METALS
PRODUCTION AND REFINING OF METALS
RECLAMATION OF CONTAMINED SOIL SOIL
TRANSPORTING
TREATMENT OF ALLOYS OR NON-FERROUS METALS
Online AccessGet full text

Cover

More Information
Summary:A method of recycling useful metals is provided. The method enables useful metals including indium, zinc, yttrium, europium, lanthanum, terbium, gadolinium, antimony, lead, copper, tin, and silver to be recovered from wastes, such as abandoned flat panel displays, and recycled economically with small energy consumption. The method of recycling useful metals includes: a step in which wastes comprising various flat panel displays, e.g., liquid-crystal panels, are crushed/powdered; a step in which the resultant particles are dissolved in an aqueous hydrofluoric acid solution; and a step in which various metal oxides and various metal fluorides which remain undissolved are filtered off and the aqueous hydrofluoric acid solution containing various metal ions is electrolyzed to deposit and recover metals for transparent-electrode oxides, such as indium and zinc, and other useful metals.
Bibliography:Application Number: CN200880124389