Title:
金属の浸出方法
Document Type and Number:
Japanese Patent JP5576221
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a leaching method capable of efficiently recovering main metals such as copper and zinc included in a waste electronic substrate or the like, and highly recovering rare metals as well.SOLUTION: Waste electronic substrate powder being at least any of pulverized powder of a waste electronic substrate, incineration ash of a waste electronic substrate and pulverized powder of an electronic component, and an iron compound are added in at least either of water and an acidic liquid, and two or more kinds of metals are leached in a condition where temperature is ≥120°C and oxygen partial pressure is 1-3 MPa.
Inventors:
Akira Hosoi
Atsushi Shibayama
Koji Takasaki
Junji Kato
Atsushi Shibayama
Koji Takasaki
Junji Kato
Application Number:
JP2010203764A
Publication Date:
August 20, 2014
Filing Date:
September 10, 2010
Export Citation:
Assignee:
Akita University, National University Corporation
DOWA holdings incorporated company
DOWA holdings incorporated company
International Classes:
C22B7/00; C22B3/04; C22B15/00; C22B19/30
Attorney, Agent or Firm:
Koichi Hirota
流 Yoshihiro
Naoko Matsuda
流 Yoshihiro
Naoko Matsuda
Previous Patent: JPS5576220
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