ABSTRACT
The associated lepidolite content in the Tantalum-Niobium Ore resource in Jiangxi province is extremely abundant (Zeng Chuanlin 2012, Zeng Qingling 2014). However, extracting lithium from lepidolite will produce massive solid waste slag (hereinafter referred to as lithium slag) in industries. The main treatment methods of lithium slag are landfills, dam construction, and piling at present, which will cause serious pollution and land wastage. Strengthening the study of comprehensive utilization of extracting lithium from lepidolite has a great significance for economizing the resource and protecting the environment.
