Title:
METHOD FOR RECOVERING RARE METALS CONTAINED IN TRANSPARENT ELECTRODE
Document Type and Number:
Japanese Patent JP2009091599
Kind Code:
A
Abstract:
To provide a method for efficiently and economically recovering rare metals from a waste-liquid crystal panel, etc.
A base board of the waste liquid crystal panel, etc., is cut off and crashed, and the crushed material is stirring-treated under ammonia or nitrogen atmosphere together with lithium nitride to recover the rare metals (mainly, indium), and lithium hydroxide generated as the result, is treated with carbon dioxide to recover as lithium carbonate and the lithium carbonate is changed into lithium oxide and further, changed into the lithium nitride with a plasma treatment, and the lithium nitride is allowed to be used for recovering treatment of the rare metals.
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Inventors:
MATSUDA KAZUO
MORII SHIGEMITSU
MORII SHIGEMITSU
Application Number:
JP2007260449A
Publication Date:
April 30, 2009
Filing Date:
October 04, 2007
Export Citation:
Assignee:
DAITOKU KK
International Classes:
C22B7/00; B09B3/00; C22B58/00; G02F1/13; G02F1/1333; G02F1/1343
Attorney, Agent or Firm:
Patent Business Corporation Minori Patent Office