A review on methods for liberating lithium from pegmatities

Sustainable geopolymer using lithium concentrate residues

Management and valorisation of delithiated β-spodumene and its processing stream

A comprehensive review of properties of concrete containing lithium refinery residue as partial replacement of cement

The invention relates to a process for producing solid particles made of an inorganic solid containing at least one alkali metal and/or alkaline earth metal, comprising at least the following steps: a) providing the inorganic solid containing at least one alkali metal and/or alkaline earth metal; b) extracting the at least one alkali metal and/or alkaline earth metal from the inorganic solid containing alkali metal and/or alkaline earth metal to obtain an extract containing the alkali metal and/or alkaline earth metal and a residue depleted in alkali metal and/or alkaline earth metal; c) separating the extract from the residue; d) working up the residue to obtain the solid particles, wherein at least one of the workup steps is selected from a group which comprises transporting, filling, packaging, washing, drying, pH-adjusting, separating by average particle size and/or mass and/or density, establishing an average particle size, magnetic separation, calcination, thermal rounding and surface coating.

Process for producing solid particles, solid particles and use thereof

Spodumene (LiAlSi2O6) is a natural occurring mineral which is processed to produce lithium carbonate (LiCO3) and lithium hydroxide (LiOH), both used for several industrial and medical applications. The processing of spodumede generates a lithium aluminosilicate residue with no commercial value in Brazil, which is therefore landfilled. This paper studied the effect of the partial replacement of Portland cement (PC) in the production of sustainable concrete masonry units (CMU) for construction. The residue was thoroughly characterized and its interaction with PC was also assessed. Several mixes of CMU were manufactured and compared with a reference mix (without residue). Results indicated that the lithium aluminosilicate is highly reactive and may replace PC in the concrete formulations.

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Christiano A. Barsante

Papers

Lithium Aluminosilicate Residue as Raw Material in the Production of Sustainable Concrete Masonry Units: A Brazilian Case