Mechanical activation in order to improve lithium recovery from a lepidolite ore concentrate was investigated. The concentrate was mechanically activated using different milling times and the effect on the resulting products was evaluated by X-ray powder diffraction, FTIR spectroscopy, TG-DTG an...detailed
Lepidolite has recently become valued as an important lithium ore resource due to the rapidly increasing demand for lithium (Li) for lithium-ion batteries (LIBs). However, existing processes to extract Li from lepidolite are still difficult and uneconomical, since the amount of lithium contained...detailed
The lepidolite located in Yichun, Jiangxi Province, China, was adopted to investigate the recovery of alkali metals and leaching kinetics of lithium with sulphuric acid solution under atmospheric pressure. The results show that the recoveries of alkali metals were achieved under the leaching con...detailed
In-situ capturing of fluorine (F) with CaO in a fluidized bed reactor is proposed to accelerate the defluorination reaction and to improve the lithium extraction from lepidolite ore. Compared to the roasting process without addition of CaO, the Li extraction efficiency is improved by ca. 15 perc...detailed