| 摘要 |
<p>This invention relates to a process of removing boric acid and salts thereof from an aqueous magnesium chloride solution intended to be used for the electrolytic production of magnesium. The removing of said substances is carried out by liquid-liquid extraction using an organic extractant, followed by re-extraction of boron from the organic phase. As extractant is employed at least one univalent aliphatic alcohol having 7 to 12 carbon atoms in the molecule diluted with a suitable hydrocarbon solvent, the extraction being effected at a pH not above 7, while the subsequent re-extraction of boron from the organic phase is effected at a pH not below 7.</p> |
