Selective elution of nickel and cobalt from iminodiacetic acid cation exchange resin using ammoniacal solutions

Littlejohn, Patrick and Vaughan, James (2014) Selective elution of nickel and cobalt from iminodiacetic acid cation exchange resin using ammoniacal solutions. Hydrometallurgy, 141 24-30. doi:10.1016/j.hydromet.2013.10.009


Author Littlejohn, Patrick
Vaughan, James
Title Selective elution of nickel and cobalt from iminodiacetic acid cation exchange resin using ammoniacal solutions
Journal name Hydrometallurgy   Check publisher's open access policy
ISSN 0304-386X
1879-1158
Publication date 2014
Sub-type Article (original research)
DOI 10.1016/j.hydromet.2013.10.009
Open Access Status
Volume 141
Start page 24
End page 30
Total pages 7
Place of publication Amsterdam, Netherlands
Publisher Elsevier
Collection year 2015
Language eng
Abstract Nickel and cobalt were eluted from iminodiacetic acid functionalized ion exchange resin by ammoniacal eluents. The highest recovery of nickel and cobalt was achieved using a mixture of aqueous ammonia, ammonium sulphate, and magnesium sulphate. The use of ammonium sulphate yielded a higher extent of nickel desorption than the use of ammonium carbonate. The presence of a divalent metal salt such as magnesium sulphate, calcium sulphate, or manganese sulphate was found to increase the extent of nickel desorption. Magnesium was found to be most suitable for this purpose. Nickel and cobalt on the resin are displaced by magnesium during this process. The selectivity of this elution process varies by metal. Aluminium and iron show little or no affinity for ammoniacal elution. Calcium and manganese desorb to a limited extent. The kinetics of nickel desorption in aqueous ammonia–ammonium sulphate–magnesium sulphate solution are slower than that of sulphuric acid elution. When resin loaded with magnesium is contacted with aqueous nickel sulphate, nickel sulphate will displace magnesium on the resin. This reaction occurs on a similar time scale as that of protonated resin.
Keyword Nickel
Cobalt
Ion exchange
Ammonia
Laterite
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: School of Chemical Engineering Publications
Official 2015 Collection
 
Versions
Version Filter Type
Citation counts: TR Web of Science Citation Count  Cited 0 times in Thomson Reuters Web of Science Article
Scopus Citation Count Cited 0 times in Scopus Article
Google Scholar Search Google Scholar
Created: Thu, 21 Nov 2013, 14:15:36 EST by Dr James Vaughan on behalf of School of Chemical Engineering