MANUFACTURING METHOD OF LITHIUM-CONTAINING BRINE WITH REDUCED CONTENT OF MAGNESIUM, ETC., AND ELECTRIC ADSORBER SUITABLE FOR THE MANUFACTURING

摘要

PROBLEM TO BE SOLVED: To provide a method for manufacturing a lithium-containing brine with reduced content of magnesium and boron components from salt lake brine, in parallel with collecting the boron component; and an electric adsorber suitable for the manufacturing.SOLUTION: A salt lake brine is mixed with hydrated lime so as to form magnesium hydroxide, which is removed by solid liquid separation. After the separation, the electric adsorption of salt lake brine is performed by applying voltage using an electrode disposed adjacent to active carbon as positive electrode 4 and an electrode disposed away therefrom as negative electrode 7, so that the boron component is selectively adsorbed to the active carbon. Consequently a lithium-containing brine with reduced content of magnesium and boron components is produced. Further, the boron component selectively adsorbed is separated by desorption for collection of the boron component.