Title:
ZINC PRODUCTION METHOD
Document Type and Number:
WIPO Patent Application WO/2022/118927
Kind Code:
A1
Abstract:
A zinc production method, according to the present invention, further comprises chlorine concentration adjustment steps 101, 101', and 105 for using a hydroxylated alkaline aqueous solution as an extraction solvent for selectively extracting a zinc component during a zinc-containing aqueous solution generation step 102, and separating the chlorine component contained in electrical-furnace dust or secondary dust at a stage prior to an electrolysis step 103 so as to reduce the chlorine concentration in a zinc-containing aqueous solution.
Inventors:
IOSAKI MASAAKI (JP)
TAMAI YOSHIE (JP)
HAIKI KENJI (JP)
TAMAI YOSHIE (JP)
HAIKI KENJI (JP)
Application Number:
PCT/JP2021/044314
Publication Date:
June 09, 2022
Filing Date:
December 02, 2021
Export Citation:
Assignee:
KINOTECH CORP (JP)
International Classes:
C22B1/00; C22B3/12; C22B3/46; C22B7/02; C22B19/20; C25C1/16
Domestic Patent References:
| WO2015016086A1 | 2015-02-05 |
Foreign References:
| JPS57501384A | 1982-08-05 | |||
| CN107419111A | 2017-12-01 | |||
| JPS5133798A | 1976-03-23 | |||
| JP2019119895A | 2019-07-22 |
Attorney, Agent or Firm:
KAWAMOTO Manabu et al. (JP)
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