Title:
SOLVENT EXTRACTION METHOD FOR SEPARATION AND RECOVERY OF NICKEL, COBALT, MANGANESE, AND ZINC
Document Type and Number:
WIPO Patent Application WO/2023/204326
Kind Code:
A1
Abstract:
The present invention relates to a solvent extraction method for separation and recovery of nickel, cobalt, manganese, and zinc and, more specifically, to a solvent extraction method for separation and recovery of nickel, cobalt, manganese, and zinc, wherein a starting material containing nickel (Ni), cobalt (Co), manganese (Mn), and zinc (Zn) is used, and all the four species of valuable metals can be individually separated and recovered by separation of a first aqueous solution containing nickel and cobalt and a second aqueous solution containing nickel, cobalt, manganese, and zinc through a first solvent extraction step, separation and recovery of nickel (Ni) and cobalt (Co) through a second solvent extraction step, recovery of zinc (Zn) through a third solvent extraction step, and then separation and recovery of manganese (Mn) and cobalt (Co) through a fourth solvent extraction step.
Inventors:
KIM DONG HEE (KR)
KIM YONG HUN (KR)
KIM WOO JIN (KR)
KIM YONG HUN (KR)
KIM WOO JIN (KR)
Application Number:
PCT/KR2022/005704
Publication Date:
October 26, 2023
Filing Date:
April 21, 2022
Export Citation:
Assignee:
ECOPRO MAT CO LTD (KR)
International Classes:
C22B3/08; C22B3/00; C22B3/16; C22B3/22; C22B47/00
Foreign References:
| JP2005149889A | 2005-06-09 | |||
| JP2020105598A | 2020-07-09 | |||
| KR20200078199A | 2020-07-01 | |||
| KR20110062307A | 2011-06-10 | |||
| US20170084966A1 | 2017-03-23 |
Attorney, Agent or Firm:
IAM PATENT & LAW FIRM (KR)
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