Mineral raw materials, concepts, upgrading and potential in Portugal

Leite, M.R. Machado; Silva, A. Futuro da

doi:10.1016/j.ctmat.2014.03.001

ISSN: 0870-8312

Ciência & Tecnologia dos Materiais is the official journal of SPM, the Portuguese Society of Materials (Sociedade Portuguesa de Materiais), providing a forum for publishing peer-reviewed papers related to both fundamentals of materials science and technological application of engineering materials. The scope of the journal covers a wide range of topics in materials science that are of interest to the SPM, encompassing electrochemistry, corrosion and protection of materials, extractive metallurgy and recycling, electronic and optoelectronic materials, biomaterials, forest materials, polymeric and composite materials, foundry, heat treatment and surface engineering, tribology, and fracture. Science and Technology of Materials welcomes contributions in the form of original research papers, review articles and technical notes reporting advances on those fields, emphasizing new materials, new products and devices, and new technologies.

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This paper reports a key note for introduction the subject of mineral raw materials in the symposium Raw Materials, Processing and Applications, at the Material's 2013 Congress, that was held in Portugal in March 2013, promoted by Sociedade Portuguesa de Materiais (SPM). In the first part, some concepts about mineral deposit and technological upgrading of mineral raw materials are reviewed. Comminution is then presented not only as a typical size reduction process but also as a process that generates the liberation of mineral phases as a pre-requisite for mineral separation seen as size or grade Partition Processes. In the second part, information about the Portuguese potential for mineral raw materials, provided by LNEG Portuguese Geological Survey, is presented. Finally an overview about EC policy for Raw Materials and the Portuguese Government strategy for the mining sector is briefly explained.

Keywords:

mineral raw materials

mineral processing

comminution

mineral liberation

mineral separation

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