降低三水县矿盐水中SO_4~(2-)含量的探讨

三水县矿盐水是一种优质的食盐水溶液,但其中SO_4~(2-)的含量较高,对氯碱工业有不良的影响。本文讨论降低SO_4~(2-)含量的原理。方法,以及测定SO_4~(2-)含量比较迅速、准确的一种新测法。对钙法和钡法的投料量和成本按算作了较详细的比较,理论计算和实验结果表明,钙法优于钡法。

An Approach to the Reducion of Sulphate Ion Content in Sodium Chloride Mineral Water Solution in Sanshui County

Sodium chloride mineral water solution is of good quality in Sanshui county. But sulphate ion content in the solution is so high that it has an unfavourable influence over the industry where chlorine and caustic soda are produced . The principles and methods by which SO42- content is lowered and the new way in which SO42- content is determined are discussed mainly in the treatise. The amount of raw material and cost accounted in gravimetric method using CaCl2 as a precipitating agent (termed Calcium method) are compared in detail with those in gravimetric method using BaCl2 as a precipitating agent (termed Barium method). The theoretical calculation and experimental results show that Calcium method is better than Batium method and that SO42- content is determined more quickly and accurately in the new way.