High-Tech Metals Distribution in Bauxites: From the Ore Genesis to the Bayer Process Residue
Deadline for manuscript submissions: closed (31 May 2019) | Viewed by 17909
Bauxite is a residual rock, consisting mainly of a mixture of aluminum hydroxides, of which industrial signiﬁcance is primarily due to its proﬁtably exploitable alumina contents. In the last few decades, bauxite ores have also been considered as a possible resource for a great number of economically-interesting elements, including some High-Tech Metals (HTM) such as REEs+Y+Sc, V, Co, Ni, Ga, Ge, and In. HTM, which are generally “co-elements”, mainly recovered as byproducts of other metallic ores, are important in a wide range of modern technologies, and their availability is generally poor relative to the current demand. Assuring supplies of HTM, largely used in modern engineered materials but subject to supply risks or concerns about availability, is a compelling challenge. This Special Issue aims to publish papers dealing with HTM behavior in bauxites and in the residue of the Bayer process developed on bauxite ores (Red Muds). Papers providing the assessment of HTM content in bauxite ores and their residue and the evaluation of the structural bonding of HTM into the supergene ore minerals, in the perspective of the determination of the best treatment for making HTM amenable to low-cost recovery are also welcome.
Dr. Giovanni Mongelli
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- Bauxite ores
- Red muds
- High tech metals distribution and recovery
- Mineralogical control