Title:
METHOD FOR EXTRACTING COPPER FROM WASTE PRINTED CIRCUIT BOARD USING GLYCINE SOLUTION
Document Type and Number:
WIPO Patent Application WO/2021/077922
Kind Code:
A1
Abstract:
Provided is a method for extracting copper from a waste printed circuit board using glycine. The steps are: through dismantling and mechanical crushing treatment to obtain the sample of the waste printed circuit board with the smaller particle size; under the stirring condition, placing the above pretreated sample in the mixed leaching agent of glycine and hydrogen peroxide, after leaching at the constant temperature for a period of time, the leaching solution is filtered to extract copper. Compared with traditional leaching agents, it is environmentally friendly and highly efficient, the leaching rate of copper can reach up to 94%, which is an environmentally friendly treatment method.
Inventors:
CHEN MENGJUN (CN)
HAN JUNHUI (CN)
SHU JIANCHENG (CN)
WANG RONG (CN)
FU JUNLIN (CN)
YI XIAOXIA (CN)
HAN JUNHUI (CN)
SHU JIANCHENG (CN)
WANG RONG (CN)
FU JUNLIN (CN)
YI XIAOXIA (CN)
Application Number:
PCT/CN2020/113868
Publication Date:
April 29, 2021
Filing Date:
September 08, 2020
Export Citation:
Assignee:
UNIV SW SCI & TECH SWUST (CN)
International Classes:
C22B15/00; C22B7/00
Domestic Patent References:
| WO2012070193A1 | 2012-05-31 |
Foreign References:
| CN110629037A | 2019-12-31 | |||
| CN103540748A | 2014-01-29 | |||
| CN107400777A | 2017-11-28 | |||
| EP3041964A1 | 2016-07-13 |
Attorney, Agent or Firm:
NANJING SUCHUANG INTELLECTUAL PROPERTY LAW FIRM (CN)
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