Recovery of lithium from a synthetic solution using spodumene leach residue

There are some cavities or active adsorption sites in the spodumene leach residue (SLR). Adsorption mechanism of SLR for lithium ions in the solution belonged to an H+-Li+ exchange process and an endothermic reaction. The crystal structure of SLR would be transformed from hydrogen type to lithium type after adsorption.173