Cobalt loss due to iron precipitation in ammoniacal carbonate solutions

作者: Laurence Dyer , Brian Su , Edouard Asselin

DOI: 10.1016/J.HYDROMET.2012.05.009

关键词:

摘要: Abstract Restrictions in the proportion of recoverable cobalt from laterite ores Caron process are attributed to multiple effects. One these is adsorption solution species on precipitated iron oxide phase. Cobalt loss an precipitate produced ammoniacal carbonate was investigated. Adsorption experiments, both during and after precipitation, were conducted under a variety conditions. While prior research has focused more hematite, primary phase present residue found be ferrihydrite. Based significant differences capacity between various phases, material will make difference losses. minimised at low concentrations, pH 10 high ammonia while temperature (over range tested) did not display impact or

参考文章(11)
A. R. Burkin, Extractive metallurgy of nickel Published on behalf of the Society of Chemical Industry by Wiley. ,(1987)
J.E. Fittock, M.J. Nicol, A.N. Nikoloski, A fundamental study of the leaching reactions involved in the Caron process Nicol, M.J. <https://researchrepository.murdoch.edu.au/view/author/Nicol, Mike.html>ORCID: 0000-0002-8757-161X <http://orcid.org/0000-0002-8757-161X>, Nikoloski, A.N. <https://researchrepository.murdoch.edu.au/view/author/Nikoloski, Aleksandar.html> and Fittock, J.E. (2004) A fundamental study of the leaching reactions involved in the Caron process. In: International Laterite Nickel Symposium, 14 - 18 March, Charlotte, NC, USA pp. 369-384.. ,(2004)
Laurence Dyer, Phillip D. Fawell, O.M.G. Newman, William R. Richmond, Synthesis and characterisation of ferrihydrite/silica co-precipitates. Journal of Colloid and Interface Science. ,vol. 348, pp. 65- 70 ,(2010) , 10.1016/J.JCIS.2010.03.056
D.W. Fuerstenau, K. Osseo-Asare, Adsorption of copper, nickel, and cobalt by oxide adsorbents from aqueous ammoniacal solutions Journal of Colloid and Interface Science. ,vol. 118, pp. 524- 542 ,(1987) , 10.1016/0021-9797(87)90487-5
M. Loan, T. G. St. Pierre, G. M. Parkinson, O. G. M. Newman, J. B. Farrow, Identifying nanoscale ferrihydrite in hydrometallurgical residues JOM. ,vol. 54, pp. 40- 43 ,(2002) , 10.1007/BF02709187
Hwa Young Lee, Sung Gyu Kim, Jong Kee Oh, Electrochemical leaching of nickel from low-grade laterites Hydrometallurgy. ,vol. 77, pp. 263- 268 ,(2005) , 10.1016/J.HYDROMET.2004.11.011
John L. Jambor, John E. Dutrizac, Occurrence and Constitution of Natural and Synthetic Ferrihydrite, a Widespread Iron Oxyhydroxide Chemical Reviews. ,vol. 98, pp. 2549- 2586 ,(1998) , 10.1021/CR970105T
Russell J. Crawford, David E. Mainwaring, Ian H. Harding, Adsorption and coprecipitation of heavy metals from ammoniacal solutions using hydrous metal oxides Colloids and Surfaces A: Physicochemical and Engineering Aspects. ,vol. 126, pp. 167- 179 ,(1997) , 10.1016/S0927-7757(96)03966-0