Title:
METHOD FOR RECOVERING SILVER
Document Type and Number:
Japanese Patent JP2015183204
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a method for recovering silver from a recovery object containing silver oxide and impurities in a solution purification step, while reducing the impurities.SOLUTION: A method for recovering silver includes: a dissolution step of obtaining a strong acid solution by dissolving, in a strong acid, a recovery object containing silver oxide, which is obtainable in a solution purification step for electrolytic silver refining; a reduction step of precipitating silver by adding copper in the strong acid solution; and a recovery step of recovering the precipitated silver.
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Inventors:
TAJIRI KAZUNORI
FUJIMOTO ATSUSHI
FUJIMOTO ATSUSHI
Application Number:
JP2014058386A
Publication Date:
October 22, 2015
Filing Date:
March 20, 2014
Export Citation:
Assignee:
JX NIPPON MINING & METALS CORP
International Classes:
C22B3/46; C22B3/04; C22B11/00; C25C1/20; C25C7/06
Domestic Patent References:
| JPH03223429A | 1991-10-02 | |||
| JP2000328281A | 2000-11-28 | |||
| JP2011214040A | 2011-10-27 | |||
| JP3879126B2 | 2007-02-07 | |||
| JPH06172881A | 1994-06-21 | |||
| JPS63118024A | 1988-05-23 | |||
| JP2008115429A | 2008-05-22 |
Foreign References:
| US4303441A | 1981-12-01 |
Attorney, Agent or Firm:
Axis International Patent Business Corporation
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