METHOD FOR EXTRACTING DISSOLVED SUBSTANCE OF BRINE AND SYSTEM USING THE SAME

摘要

PURPOSE: A method for extracting a component dissolved in brine and a system using the same are provided to quickly extract a high purity metal compound or semi-metal compound from the brine with low cost and to minimize the generation of a material harmful to environment and human body. CONSTITUTION: A method for extracting a component dissolved in brine includes: a step of removing magnesium from the brine; a step of naturally heating the brine from which the magnesium is removed; a step of extracting lithium phosphate with adding phosphate feeding material to the naturally heated brine; a step of obtaining lithium hydroxide with electrolyzing the lithium phosphate; and a step of obtaining lithium carbonate with reacting the lithium hydroxide with a carbonization gas.