The status quo and development trend of the extraction technology of ion-absorbed rare earth in southern China

The status quo and development trend of the extraction technology of ion -absorbed rare earth are introduced in this paper. It is suggested that further research should be developed from the aspects of hig h efficiency and low pollution leaching technology, the diffusion and mass transfer mechanism of the in-situ leaching, the process of enhanced leaching, and the exploitation and utilization of the complex resources.