Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
Results
Showing 1 to 9 of 9 for “"Spodumene"”.
-
Optimization of spodumene flotation with fatty acid collectors
At present, hard-rock minerals like spodumene (LiAlSi2O6) – concentrated by dense media separation (DMS) and/or froth flotation – represent >50% of global lithium production. A major process challenge in spodumene beneficiation is poor flotation selectivity stemming from insolubility of the tall …
-
Mineralogy and Geochemistry of the Dumper Dew Pegmatite, Oxford County, Maine
… K-feldspar, muscovite, garnet, apatite, beryl, spodumene, triphylite-lithiophilite, tourmaline, cassiterite, and columbite-tantalite were attained via instrumentation assay. These trends illustrate an enhanced degree of magmatic differentiation relative to other pegmatites in the area.
-
Sodium sulfate corrosion of silicon carbide fiber-reinforced lithium aluminosilicate glass-ceramic matrix composites
… into either the glassy phase or into the Beta- spodumene matrix. Lastly, the presence of distinct magnesium silicate crystalline phases in the salt-coated and heat-treated in oxygen sample implies that the MgO at the surface reacted with the SiO2 in the matrix.
-
A phenomenological treatment of thermal expansion in crystals of the lower symmetry classes and the crystal structures of CaCoSi₂O₆ and CaNiSi₂O₆
… hedenbergite, jadeite, ureyite, acmite, and spodumene. The extended Grüneisen equation has been used to further examine the nature of the thermal expansion in emerald, beryl, and diopside. The crystal structures of the synthetic clinopyroxenes CaCoSi₂O₆ (cobalt diopside) and CaNiSi₂O₆ (nickel …
-
Role of Li and B bearing fluids in crystallization and alteration of granitic pegmatites, San Diego, California
… euhedral quartz, elbaite tourmaline, and spodumene. Feldspars in pockets are usually altered to kaolinite. This study investigates the role that fluid-soluble elements, Li, B, Cl, and F, have in controlling the mineralogy of pegmatites and subsolidus alteration includes two of these …
-
New Fluorescence Sensors for Critical Materials
… with detection and discrimination of α and β spodumene using previously unreported luminescence. Discrimination using NIR luminescence of rare earth elements (necessary for advanced materials and electromagnets) in the minerals monazite, xenotime and zircon is investigated. Upconversion from …
-
Critical Material Recovery from Salt-Lakes and Spent Batteries with Membranes and Solvents
… these metals from primary sources like spodumene ores and continental salt lakes, and secondary sources like spent battery and magnet leachates. Conventional extraction processes from primary sources are highly energy-intensive, environmentally taxing, and pose substantial water usage …
-
Advancing Lithium Extraction from Nevada’s Sedimentary Claystones: Hydrometallurgical Pathways and Sustainability Perspectives
… Conventional supply chains: brines and hard-rock spodumene, face mounting technical, environmental, and geopolitical constraints. Sedimentary lithium-bearing claystones in Nevada represent one of the most strategically important domestic alternatives, however, lithium in these deposits is …