METHOD FOR ECONOMICAL EXTRACTION OF LITHIUM FROM SOLUTION INCLUDING LITHIUM

摘要

PURPOSE: A method of extracting lithium from lithium containing solution at a low cost is provided to remove the need for evaporation and concentration processes of saline water for a long time and precipitate lithium at a low cost. CONSTITUTION: A method of extracting lithium from lithium containing solution at a low cost comprises next steps. A Phosphate supplying material is added to lithium containing solution to precipitate dissolved lithium as lithium phosphate, and lithium is precipitated from the lithium containing solution at a low cost. The precipitated lithium phosphate is filtered from the lithium containing solution to precipitate lithium phosphate. The phosphate supplying material is one or more of phosphorus, phosphoric acid and phosphate. The concentration of the lithium phosphate is 0.39g / L or higher.