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http://dx.doi.org/10.7844/kirr.2018.27.4.36

A Study on the Separation of Cadmium from Waste Ni-Cd Secondary Batteries by Ion Substitution Reaction  

Kim, Dae-Weon (Advanced Materials and Processing Center, Institute for Advanced Engineering(IAE))
Park, Il-Jeong (Advanced Materials and Processing Center, Institute for Advanced Engineering(IAE))
Ahn, Nak-Kyoon (Advanced Materials and Processing Center, Institute for Advanced Engineering(IAE))
Jeong, Hang-Chul (Advanced Materials and Processing Center, Institute for Advanced Engineering(IAE))
Jung, Soo-Hoon (GM-Tech)
Choi, Joong-Yup (GM-Tech)
Yang, Dae-Hoon (GM-Tech)
Publication Information
Resources Recycling / v.27, no.4, 2018 , pp. 36-43 More about this Journal
Abstract
In order to recycle waste nickel-cadmium batteries, cadmium was selectively removed by ion substitution reaction so that cadmium and nickel could be separated efficiently. The electrode powder obtained by crushing the electrode in the waste nickelcadmium battery was leached with sulfuric acid. The cadmium in the nickel-cadmium solution was precipitated with cadmium sulfide by the addition of sodium sulfide. Ion substitution experiments were carried out under various conditions. At the optimum condition with pH = -0.1 and $Na_2S/Cd=2.3$ at room temperature, the residual Cd in the solution was about 100 ppm, and most of it was precipitated with CdS.
Keywords
NiCd; Secondary battery; Recycling; Ion substitution reaction; Separation/recovery;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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