Basic nickel carbonate: Part II. Microstructure evolution during industrial nickel production from basic nickel carbonate

Rhamdhani, M. A., Jak, E. and Hayes, P. C. (2008) Basic nickel carbonate: Part II. Microstructure evolution during industrial nickel production from basic nickel carbonate. Metallurgical and Materials Transactions B - Process Metallurgy and Materials Processing Science, 39 2: 234-245. doi:10.1007/s11663-008-9139-5


Author Rhamdhani, M. A.
Jak, E.
Hayes, P. C.
Title Basic nickel carbonate: Part II. Microstructure evolution during industrial nickel production from basic nickel carbonate
Journal name Metallurgical and Materials Transactions B - Process Metallurgy and Materials Processing Science   Check publisher's open access policy
ISSN 1073-5615
1543-1916
Publication date 2008-04-01
Year available 2008
Sub-type Article (original research)
DOI 10.1007/s11663-008-9139-5
Open Access Status
Volume 39
Issue 2
Start page 234
End page 245
Total pages 12
Editor D. Laughlin
Place of publication New York, U. S. A.
Publisher Springer Sciences and Business Media
Language eng
Subject C1
0904 Chemical Engineering
84 Mineral Resources (excl. Energy Resources)
0912 Materials Engineering
Formatted abstract
A systematic investigation has been carried out to determine the effects of temperature, reduction/oxidation time, and partial pressure of hydrogen on the extent of the oxygen and sulfur removal during basic nickel carbonate (BNC) processing under laboratory conditions. It has been shown that increasing the temperature and reduction time increases the extent of oxygen and sulfur removal. Decreasing the hydrogen partial pressure tenfold lowers the extent of oxygen removal and results in the formation of residual NiO (incomplete reduction). The microstructure characteristics of industrial plant samples are correlated with the results obtained from the laboratory studies to identify the underlying elementary reactions and phenomena occurring and to understand the mechanisms of formation of the residual NiO in the final nickel product during industrial processing. As a result of these studies, it is recommended that the actual process is carried out at temperatures below 600 °C to avoid the formation of this residual NiO.
© The Minerals, Metals & Materials Society and ASM International 2008
Keyword Microstructure
Carbonates
Q-Index Code C1
Q-Index Status Confirmed Code

Document type: Journal Article
Sub-type: Article (original research)
Collections: 2009 Higher Education Research Data Collection
School of Chemical Engineering Publications
 
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Created: Sat, 18 Apr 2009, 00:13:21 EST by Gail Smith on behalf of School of Chemical Engineering