Journal ArticleDOI
Physico-chemical characterization and sulphatization roasting of low-grade nickeliferous laterites
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In this paper, low-grade nickeliferous laterites from the Sukinda region, Orissa, India, were characterized by microscopic investigations, using X-ray diffraction (XRD), DTA/TG, SEM and IR techniques.About:
This article is published in Hydrometallurgy.The article was published on 2003-04-01. It has received 87 citations till now. The article focuses on the topics: Nickel & Goethite.read more
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Atmospheric acid leaching of nickel laterites review: Part I. Sulphuric acid technologies
R.G. McDonald,B.I. Whittington +1 more
TL;DR: In this paper, atmospheric leaching of nickel laterite ores with sulphuric acid was examined, specifically the limonite, smectite (clay) and saprolite fractions.
Journal ArticleDOI
Selective recovery of rare earths from bauxite residue by combination of sulfation, roasting and leaching
Chenna Rao Borra,Jasper Mermans,Bart Blanpain,Yiannis Pontikes,Koen Binnemans,Tom Van Gerven +5 more
TL;DR: In this article, a combined sulfation-roasting-leaching process was developed to selectively leach the rare-earth elements (REEs) while leaving iron undissolved in the residue.
Journal ArticleDOI
Leaching behavior of metals from a limonitic nickel laterite using a sulfation–roasting–leaching process
TL;DR: In this paper, the leaching behavior of metals from a limonitic laterite was investigated using a sulfation-roasting-leaching process for the recovery of nickel and cobalt.
Journal ArticleDOI
The reduction of nickel from low-grade nickel laterite ore using a solid-state deoxidisation method
Bo Li,Hua Wang,Yonggang Wei +2 more
TL;DR: In this paper, the effects of temperature, time, reductant type and CaO content on the conversion percentage of the total nickel to metallic nickel (α Ni ) in the nickel laterite ore reduction process were investigated.
Journal ArticleDOI
Advanced Review on Extraction of Nickel from Primary and Secondary Sources
TL;DR: In this article, the resources of nickel and status of different processes/technologies in vogue or being developed for extraction of nickel from both primary and secondary resourcings.
References
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Identification of ferrihydrite in soils by dissolution kinetics, differential x-ray diffraction, and Mossbauer spectroscopy
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Extractive metallurgy of nickel
TL;DR: In this paper, the authors describe the pyrometallurgy of Sulphide Ores of Nickel to Finished Metal or Mattes Treatment of Laterite Ores to Produce Ferronickel, Matte or Precipitated Sulphides Chemistry of Nickel-Cobalt Separation Hydrometalurgy of Nickel Sulpsides.
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Thermal decomposition of some metal sulphates
G.A. Kolta,M.H. Askar +1 more
TL;DR: In this paper, the mechanism of decomposition of metal sulphates is discussed, making use of additional information obtained from isothermal studies and X-ray diffraction measurements, and the activation energies of these reactions were calculated and found to increase, with almost the same increments, in the order Zn
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Reduction roasting/ammonia leaching of nickeliferous laterites
S. Chander,V.N. Sharma +1 more
TL;DR: A well characterized ore sample from Sukinda (India) consisting of nickeliferous limonite has been used to study the extractibility of nickel by the reduction roast/ammonia leach process as discussed by the authors.
Journal ArticleDOI
Sulfuric acid pressure leaching of nickeliferous limonites
TL;DR: In this article, the sulfuric acid pressure leaching characteristics of nickeliferous limonite samples from South New Caledonia were examined and the effect of temperature (225°C to 300°C), acid-to-ore ratio (0.21 to 0.30), pct solids (10 to 45), particle size (−20 to −270 mesh), and agitation (50 to 600 rpm) on nickel extraction and selectivity were discussed.
Related Papers (5)
Atmospheric acid leaching of nickel laterites review: Part I. Sulphuric acid technologies
R.G. McDonald,B.I. Whittington +1 more