| 摘要 |
PROBLEM TO BE SOLVED: To provide a recovering method of boron by which boron can be recovered as borax or orthoboric acid having a high utility value from boron-containing water. SOLUTION: In the recovering method of boron, the boron-containing water is brought into contact with a boron adsorbent to remove boron by adsorption and the adsorbent adsorbing boron is brought into contact with an alkali aqueous solution to desorb boron, boron-containing desorption liquid is concentrated by evaporation, crystals deposited from the concentrated liquid by evaporation are separated, separated crystals are dissolved again in water and then boron compound is deposited by adjusting pH. COPYRIGHT: (C)2004,JPO
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