leaching agent and leaching method for leaching rare earth into rare earth ore with ion adsorption

摘要

"Leaching Agent and Leaching Method for Leaching a Rare Earth in an Ion Adsorced Rare Earth Ore" The present invention relates to a leaching agent and a method of leaching a rare earth in an ore of rare earth with ion adsorption. The leaching agent is an aqueous solution comprising reducing ions. an ion adsorption rare earth ore is leached by an aqueous solution containing reducing ions as a leaching agent such that an ionic rare earth in the rare earth ore can be leached by an ion exchange mode. . In addition, due to the reducing action of the reducing ions, the high valence rare earth ions in a colloidal phase and in a mineral phase can undergo an oxidation-reduction reaction such that low valence ions are formed. and leached, thus improving the leaching rate of a rare earth in the ion adsorption rare earth ore.