Novel extraction route of lithium from α-spodumene by dry …
In 1959, Peterson et al. 35 patented the possible extraction of lithium from α-spodumene using an alkali metal halide or their mixture (specifically, KCl and/or NaCl) in the presence of a refractory material. The amount of refractory material required by this approach was indicated to vary between 60 to 80 wt% of the quantity of spodumene treated.
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