Title:
METHOD FOR SEPARATING COPPER FROM NICKEL AND COBALT
Document Type and Number:
WIPO Patent Application WO/2019/082532
Kind Code:
A1
Abstract:
Provided is a method for separating copper from nickel and cobalt with which it is possible to selectively and efficiently separate copper, as well as nickel and cobalt, from an alloy including copper, nickel, and cobalt such as an alloy having high corrosion resistance that includes copper, nickel, and cobalt obtained by dry treatment of waste lithium ion cells. An alloy including copper, nickel, and cobalt is brought into contact with sulfuric acid in the joint presence of a sulfurizing agent, and a solid containing copper and a leachate containing nickel and cobalt are obtained.
Inventors:
HIGAKI TATSUYA (JP)
TAKENOUCHI HIROSHI (JP)
KOBAYASHI HIROSHI (JP)
ASANO SATOSHI (JP)
TAKENOUCHI HIROSHI (JP)
KOBAYASHI HIROSHI (JP)
ASANO SATOSHI (JP)
Application Number:
PCT/JP2018/033682
Publication Date:
May 02, 2019
Filing Date:
September 11, 2018
Export Citation:
Assignee:
SUMITOMO METAL MINING CO (JP)
International Classes:
C22B23/00; C22B3/08; C22B3/44; C22B7/00
Foreign References:
| US6440194B1 | 2002-08-27 | |||
| JP2010277868A | 2010-12-09 | |||
| JP2007323868A | 2007-12-13 | |||
| JP2015183292A | 2015-10-22 | |||
| JP2012172169A | 2012-09-10 | |||
| JPS63259033A | 1988-10-26 |
Other References:
See also references of EP 3702481A4
Attorney, Agent or Firm:
SHOBAYASHI Masayuki et al. (JP)
Download PDF: