LAPSE:2018.0416
Published Article
LAPSE:2018.0416
Separation of Ag(I) by Ion Exchange and Cementation from a Raffinate Containing Ag(I), Ni(II) and Zn(II) and Traces of Cu(II) and Sn(II)
August 28, 2018
Ion exchange and cementation experiments were done to separate silver(I) from a raffinate containing silver(I), nickel(II), and zinc(II) and small amounts of copper(II) and tin(II). The raffinate resulted from the recovery of gold(III), tin(II) and copper(II) by solvent extraction from a leaching solution of anode slime. Ion exchange with anionic resins was not effective in separating silver(I) because tin(II) and zinc(II) were selectively adsorbed into the anionic resins. It was possible to separate silver(I) by cementation with copper sheet. Treatment of the cemented silver with nitric acid solution increased the purity of silver(I) in the solution from 50.9% to 99.99%. Adjusting the pH of the AgNO₃ solution to higher than 6, followed by adding ascorbic acid as a reducing agent, led to the synthesis of silver particles with micron size.
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Keywords
cementation, copper sheet, ion exchange, silver, silver particles
Subject
Suggested Citation
Xing WD, Lee MS, Choi SH. Separation of Ag(I) by Ion Exchange and Cementation from a Raffinate Containing Ag(I), Ni(II) and Zn(II) and Traces of Cu(II) and Sn(II). (2018). LAPSE:2018.0416
Author Affiliations
Xing WD: Department of Advanced Material Science & Engineering, Institute of Rare Metal, Mokpo National University, Jeollanamdo 534-729, Korea
Lee MS: Department of Advanced Material Science & Engineering, Institute of Rare Metal, Mokpo National University, Jeollanamdo 534-729, Korea
Choi SH: Department of Chemical and Biomolecular Engineering, Seonam University, Chonbuk 31556, Korea
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Lee MS: Department of Advanced Material Science & Engineering, Institute of Rare Metal, Mokpo National University, Jeollanamdo 534-729, Korea
Choi SH: Department of Chemical and Biomolecular Engineering, Seonam University, Chonbuk 31556, Korea
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Journal Name
Processes
Volume
6
Issue
8
Article Number
E112
Year
2018
Publication Date
2018-08-01
Published Version
ISSN
2227-9717
Version Comments
Original Submission
Other Meta
PII: pr6080112, Publication Type: Journal Article
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LAPSE:2018.0416
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doi:10.3390/pr6080112
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[v1] (Original Submission)
Aug 28, 2018
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Aug 28, 2018
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