天然矿泉水脱钠的研究——硅胶为载体浸渍锑酸为脱钠剂

Removal of Sodium from Natural Mineral Water by Immersion on Polyantimonic (V) Add with Sflica Gel Carrier

摘要: 提出了以硅胶为载体将五价锑酸浸渍在活化硅胶中作为交换柱滤料,以除去矿泉水中钠离子,脱钠率可达99%以上,脱钠剂可再生,再生液为1 mol·L^-1 HNO₃+1 mol·L^-1 NH₄NO₃,钠离子含量的测定方法采用离子选择电极Rittner和Ma法,结果表明:此方法简便、可靠,结果满意,值得推广。

Abstract: The deals with the removal of Na⁺ from natural mineral water by immersion on polyantimonic (Ⅴ) acid supported on silica gel is developed. Removing Na⁺ efficiency of adsorbent is more than 99%. 1 mol/L HNO₃+1 mol/L NH₄NO₃ is used as regeneration solution. ion selective electrode method of "Rittner and Ma" is applied to determine the amount of Na⁺. This method has been shown to be simple and reliable, the results are satisfactory.