Method for reducing impurity content of desorption solution during lithium extraction through brine adsorption

The invention discloses a method for reducing the impurity content of a desorption solution during lithium extraction by brine adsorption, and belongs to the technical field of lithium extraction by an adsorption method, and the method comprises the following steps: feeding brine into a device filled with a lithium extraction material for adsorption; replacing impurity cations on the lithium extraction material by using a replacement liquid; desorbing the lithium extraction material by using a desorption agent to obtain a desorption solution; according to the method, the proportion of other cations to lithium ions in the desorption solution can be reduced, the concentration of the lithium ions in the desorption solution can be improved, the desorption solution can be used for producing a high-purity lithium salt product, and the energy consumption of subsequent production and processing is reduced. 本发明公开了一种卤水吸附提锂时降低解吸液杂质含量的方法，属于吸附法提锂技术领域，包括：将卤水送入装有提锂材料的装置中进行吸附；使用置换液将提锂材料上的杂质阳离子置换出来；使用解吸剂对提锂材料进行解吸，得到解吸液；本发明不仅可