Title:
METHOD FOR RECOVERING LEAD FROM COPPER SMELTING DUST
Document Type and Number:
WIPO Patent Application WO/2022/137585
Kind Code:
A1
Abstract:
A method for recovering lead from copper smelting dust according to the present invention comprises: an alkali leaching step for leaching, with an alkali solution, lead which is contained in copper smelting dust; a step for solid-liquid separation of a post-leaching solution of and a leaching residue of the alkali leaching; a neutralization step for depositing the lead by adding acid to the separated post-leaching solution; and a step for recovering, by solid-liquid separation, a sediment which contains the lead.
Inventors:
MURAOKA SHU (JP)
TANAKA FUMITO (JP)
MORIMOTO TOMOYA (JP)
TANAKA FUMITO (JP)
MORIMOTO TOMOYA (JP)
Application Number:
PCT/JP2021/014981
Publication Date:
June 30, 2022
Filing Date:
April 09, 2021
Export Citation:
Assignee:
MITSUBISHI MATERIALS CORP (JP)
International Classes:
C22B1/00; C22B3/12; C22B3/44; C22B7/02; C22B13/00
Foreign References:
| JP2003181413A | 2003-07-02 | |||
| JPS5161425A | 1976-05-28 | |||
| JP2020213603A | ||||
| JP2009242850A | 2009-10-22 | |||
| JPS59162233A | 1984-09-13 | |||
| JP2013237920A | 2013-11-28 |
Attorney, Agent or Firm:
MATSUNUMA Yasushi et al. (JP)
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