Title:
プリント基板屑からの有価金属の回収方法
Document Type and Number:
Japanese Patent JP7171173
Kind Code:
B2
Abstract:
To provide a method of recovering valuable metal from printed circuit board scrap that can improve the recovery rate of valuable metal from the printed circuit board scrap and its quality.SOLUTION: The method has a first step for crushing printed circuit board scrap with an impact crusher (10A, 10B) by one stage or two stages, a second step for crushing the crushed matter that is obtained by crushing the printed circuit board scrap, with a final crusher (10C), and a third step for separating the powder matter that results from crushing with the final crusher, with a pneumatic separator (70), into powder matter mainly composed of valuable metal, and other parts, to recover the valuable metal from the powder matter. The first, second and third steps are continuously performed.SELECTED DRAWING: Figure 3
Inventors:
Hideyuki Mori
Takayuki Kitera
Kazuhiro Nomura
Takayuki Kitera
Kazuhiro Nomura
Application Number:
JP2017162787A
Publication Date:
November 15, 2022
Filing Date:
August 25, 2017
Export Citation:
Assignee:
JX Nippon Mining & Metals Co., Ltd.
International Classes:
B09B3/30; B02C13/04; B07B9/00; B07B11/06; B09B5/00; C22B1/00; C22B7/00
Domestic Patent References:
| JP9194959A | ||||
| JP7251154A | ||||
| JP2005177704A | ||||
| JP549045U |
Attorney, Agent or Firm:
Shuhei Katayama