| 摘要 |
<p>Proposed is a method of purifying aqueous solutions of amine oxides, the method being characterized in that the solutions are contacted, through an anion-active membrane, with an aqueous solution of an alkali-metal hydroxide and/or ion-pair reagent. The method proposed enables in particular anions of low-molecular-weight carboxyilc acids, as well as inorganic acids, to be removed efficiently. <IMAGE></p> |
