A process for fabricating lithium aluminate in gamma phase.

摘要

The process for fabricating lithium aluminate in gamma phase provides a precursors alumina poroder of high specific surface and lithium peroxide prepared according to Bach and Baardman. The two precursors are mixed in liquid phase at room temperature with anhydrous ethanol and are then heated and separated under vacuum whereby an anhydrous mixture is obtained. This mixture is calcined whereby lithium aluminate is obtained. Said aluminate is mixed with stearic acid and cold pressed and lastly sintered in a furnace. The obtained product is very pure and has a lamellar morphology. For the process the calcining times are very limited even at temperatures lower than that usually employed.