Journal article
New route for the extraction of crude zirconia from Zircon
Journal of the American Ceramic Society, Vol.85(9), pp.2217-2221
2002
Abstract
A commercial grade of zircon (ZrSiO4) concentrate was mechanically milled with MgO for up to 100 h in a laboratory-scale mill. The resultant powders were subjected to thermal processing, chemical leaching, and X-ray diffraction (XRD). There was no direct evidence of reaction during the milling step, with no new phases evident from XRD. Leaching of the powder showed that a reaction had occurred, and increased solubility with milling time was attributed to the formation of a nanostructured Mg-Zr-Si oxide, which dissolved congruently. Heating the powders resulted in a number of thermal events, including the formation/crystallization of ZrO2 and Mg2SiO4. Thermal treatment of the milled powders allowed selective chemical leaching of the magnesium and silicon, leaving a powder containing ∼90% ZrO2.
Details
- Title
- New route for the extraction of crude zirconia from Zircon
- Authors/Creators
- N.J. Welham (Author/Creator)
- Publication Details
- Journal of the American Ceramic Society, Vol.85(9), pp.2217-2221
- Publisher
- Wiley
- Identifiers
- 991005544222207891
- Murdoch Affiliation
- Murdoch University
- Language
- English
- Resource Type
- Journal article
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- Citation topics
- 5 Physics
- 5.88 Electromagnetism
- 5.88.317 Metallic Glasses
- Web Of Science research areas
- Materials Science, Ceramics
- ESI research areas
- Materials Science