Title:
複合材料から有価物を分離回収する方法
Document Type and Number:
Japanese Patent JP3553924
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To separate defective products and waste materials of composite materials consisting of hybrid bodies composed of metallic materials, such as printed circuit boards, and nonmetallic materials to metallic components and nonmetallic components with good accuracy and to recover these components as valuables for recycling. SOLUTION: The composite materials which are materials to be treated are subjected to shearing and destroying by a shear, etc., then to pulverizing by a hammer mill, etc., to form a powder mixture composed of metallic particles and nonmetallic particles and this powder is passed through either or both of an eddy current sorter and an electrostatic sorter, by which the metallic particles are separated from the nonmetallic particles.
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Inventors:
Chiaki Izumikawa
Application Number:
JP2002205403A
Publication Date:
August 11, 2004
Filing Date:
July 15, 2002
Export Citation:
Assignee:
DOWA MINING CO.,LTD.
International Classes:
B02C23/08; B03C1/23; B03C7/00; B03C7/06; B07B1/00; B07B9/00; B09B5/00; B29B17/02; B29B17/04; B09B3/00; (IPC1-7): B07B9/00; B02C23/08; B03C1/23; B03C7/00; B07B1/00; B09B3/00; B09B5/00; B29B17/02
Domestic Patent References:
| JP51052560A | ||||
| JP54035802A | ||||
| JP52040401A | ||||
| JP52074168A | ||||
| JP56002987U |
Attorney, Agent or Firm:
Kenji Wada
Komatsu Taka
Koji Hagiwara
Komatsu Taka
Koji Hagiwara