Separation of Ag and Zn from Nitrate Leachate of Spent Silver Oxide Batteries by Solvent Extraction with Cyanex272

Sung-Yong Cho; Hyeon Seo; Pan-Pan Sun

doi:10.7844/kirr.2024.33.1.31

All Issue

2024 Vol.33, Issue 1 Preview Page Next Page

Separation of Ag and Zn from Nitrate Leachate of Spent Silver Oxide Batteries by Solvent Extraction with Cyanex272 Cyanex 272를 이용한 폐산화은배터리 침출액으로부터 Ag 및 Zn의 분리

28 February 2024. pp. 31-36

PDF XML

Abstract

The separation of Ag and Zn from the nitrate leachate of spent silver oxide batteries using Cyanex272 as an extractant was investigated. The extraction of Ag and Zn was affected by the concentrations of nitric acid and the extractant. Cyanex-272 selectively extracted Zn over Ag when the HNO₃ concentration was lower than 0.1 mol/L. The co-extracted Ag was removed by stripping with 1 mol/L thiourea. Stripping of Zn from the loaded Cyanex-272 was accomplished using 0.5 mol/L HNO₃ after the removal of Ag. The McCabe–Thiele diagrams for the extraction of Zn with Cyanex-272, the scrubbing tripping of Ag with thiourea, and the stripping of Zn with HNO₃ were constructed. The results were verified by simulated counter-current extraction and stripping experiments. Finally, a process for the separation of Ag and Zn from silver oxide batteries was proposed.

Keywords

HNO₃

cyanex272

separation

폐산화은 전지의 질산 침출액으로부터 Ag(산화상태)와 Zn(산화상태)의 분리를 위해 cyanex272를 추출제로 사용하여 용매추출 실험을 수행했다. Ag와 Zn의 추출은 질산과 추출제의 농도에 영향을 받았다. Cyanex272는 HNO₃ 농도가 0.1 mol/L보다 낮을 때 Ag보다 Zn을 선택적으로 추출되었다. 공동 추출된 Ag는 1 mol/L thiourea로 탈거하여 제거했다. Ag를 제거한 후 0.5 mol/L HNO₃를 사용하여 추출된 Cyanex272에서 Zn을 탈거했다. Cyanex272를 사용한 Zn의 추출, thiourea를 사용한 Ag의 탈거, HNO₃를 사용한 Zn의 탈거에 대한 McCabe-Thiele 다이어그램이 각각 구성되었다. 위 결과는 시뮬레이션 된 계수 전류 추출 및 탈거 실험을 통해 검증되었다. 마지막으로 산화은 전지에서 Ag와 Zn을 분리하는 공정이 제안되었다.

키워드

은

아연

질산

Cyanex272

분리

References

Jadhav, U., Hocheng, H., 2013 : Extraction of silver from spent silver oxide-zinc button cells by using Acidithiobacillus ferrooxidans culture supernatant, J. Clean. Prod., 44, pp.39-44. 10.1016/j.jclepro.2012.11.035

Dias, P., Javimczik, P., Benevit, M., et al., 2016 : Recycling WEEE: Extraction and concentration of silver from waste crystalline silicon photovoltaic modules, Waste Manag., 57, pp.220-225. 10.1016/j.wasman.2016.03.01626980485

Kuczyńska-Łażewska, A., Klugmann-Radziemska, E., Sobczak, Z., et al., 2018 : Recovery of silver metallization from damaged silicon cells, Sol. Energy Mater. Sol. Cells, 176, pp.190-195. 10.1016/j.solmat.2017.12.004

Long, H. Z., Chai, L. Y., Qin, W. Q., et al., 2010 : Solvent extraction of zinc from zinc sulfate solution, J. Cent. South Univ. Technol., 17, pp.760-764. 10.1007/s11771-010-0553-x

Aktas, S., 2010 : Silver recovery from spent silver oxide button cells, Hydrometallurgy, 104, pp.106111. 10.1016/j.hydromet.2010.05.004

Smith, M. J., Gray, F. M., 2010 : Batteries, from Cradle to Grave, J. Chem. Educ., 87, pp.162167. 10.1021/ed800053u

Xie, F., Lu, D., Yang H., et al., 2014: Solvent Extraction of Silver and Gold From Alkaline Cyanide Solution with LIX 7950, Miner. Process. Extr. M., 35, pp.229238. 10.1080/08827508.2013.825615

Sathaiyan, N., Nandakumar, V. and Ramachandran, P., 2006 : Hydrometallurgical recovery of silver from waste silver oxide button cells, J. Power Sources, 161, pp.14631468. 10.1016/j.jpowsour.2006.06.011

González, P., Javier Recio, F., Ribera, D., et al., 2011 : Silver Recovery from Acidic Solutions by Formation of Nanoparticles and Submicroparticles of Ag on Microfiltration Membranes, (Mass Transfer - Advanced Aspects, InTech, 2011) pp.439460, DOI: 10.5772/21532. 10.5772/21532

Gamiño-Arroyo, Z., Tapia-Cisneros, A., Zamacona-Saucedo, O., et al., 2015 : Silver Recovery from Spent Silver Oxide Button Cell by Liquid-Liquid Extraction, J. Mater. Sci. Chem. Eng., 3, pp.148153. 10.4236/msce.2015.37020

Mowafy, E. A. and Aly, H. F., 2007 : Extraction and separation of Pd(II), Pt(IV), Fe(III), Zn(II), Cu(II) and Ag(I) from hydrochloric acid solutions with selected cyanamides as novel extractants, J. Hazard. Mater., 149, pp.465470. 10.1016/j.jhazmat.2007.04.01117499916

Sun, P. P., Min, B. J., Kim, S. T., et al., 2017 : Separation of Silver (I) and Zinc(II) from Nitrate Solutions by Solvent Extraction with LIX63, Mater. Trans., 58, pp.287290. 10.2320/matertrans.M2016316

Cho, S. Y., Lee, W. G. and Sun, P. P., 2019 : Solvent Extraction Separation of Silver(I) and Zinc(II) from Nitrate Leach Solution of Spent Silver Oxide Batteries with D2EHPA, Mater. Trans., 60, pp.1090-1095. 10.2320/matertrans.M2018394

Sole, K. C. and Hiskey, J. B., 1995 : Solvent extraction of copper by Cyanex 272, Cyanex 302 and Cyanex 301, Hydrometallurgy, 37, pp.129-147. 10.1016/0304-386X(94)00023-V

Laki, S., Shamsabadi, A. A., Kargari, A., 2016 : Comparative solvent extraction study of silver(I) by MEHPA and Cyanex 302 as acidic extractants in a new industrial diluent (MIPS), Hydrometallurgy, 160, pp.38-46. 10.1016/j.hydromet.2015.12.002

Information

Publisher :The Korean Institute of Resources Recycling
Publisher(Ko) :한국자원리싸이클링학회
Journal Title :Resources Recycling
Journal Title(Ko) :자원리싸이클링
Volume : 33
No :1
Pages :31-36
Received Date : 2023-12-11
Revised Date : 2024-01-19
Accepted Date : 2024-01-19
DOI :https://doi.org/10.7844/kirr.2024.33.1.31

Resources Recycling ISSN:2765-3439(Print) 2765-3447(Online) 자원리싸이클링

All Issue