Title:
METHOD FOR REMOVING CHLORINE IN ZINC HYDROMETALLURGY
Document Type and Number:
WIPO Patent Application WO/2023/234562
Kind Code:
A1
Abstract:
The present invention provides a method for removing chlorine in a process solution in zinc hydrometallurgy, the method comprising the steps of: preparing a process solution from a leaching process for leaching zinc calcine; adding the process solution into a reaction tank, and adding a lead concentrate into the reaction tank while blowing oxygen; subjecting a slurry formed in the reaction tank to solid-liquid separation in a filtration tank; and post-treating a filtrate and lead concentrate residue which have been separated in the solid-liquid separation step, wherein, in the reaction tank, chlorine ions in the process solution and silver contained in the lead concentrate react to precipitate silver chloride.
Inventors:
KIM MIN CHEOL (KR)
CHOI HEON SIK (KR)
CHOI HEON SIK (KR)
Application Number:
PCT/KR2023/005611
Publication Date:
December 07, 2023
Filing Date:
April 25, 2023
Export Citation:
Assignee:
KOREA ZINC CO LTD (KR)
International Classes:
C22B19/32; C22B3/06; C22B19/02
Foreign References:
| KR800001411B1 | 1980-12-05 | |||
| JP2008081766A | 2008-04-10 | |||
| JPH0324238A | 1991-02-01 | |||
| JP2006257540A | 2006-09-28 | |||
| KR100926238B1 | 2009-11-09 |
Attorney, Agent or Firm:
CHANG, Duck Soon et al. (KR)
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