【摘要】 首先将含硼盐卤日晒蒸发到不同浓度,分别取硫酸镁析出阶段卤水和水氯镁石析出阶段卤水加入芒硝使全部回溶。利用硫酸钠和氯化镁在水溶液中存在交互反应,将芒硝回溶后卤水进行天然蒸发浓缩到硼酸盐开始结晶析出,测得盐卤在动态蒸发过程中硼酸镁的最大极限溶解度为7.36～7.50％MgB₄O₇,室温放置10年后的平衡溶解度为0.94％MgB₄O₇。更多还原

【Abstract】 In this paper, we have firstly detrmined the maximum solubility of magnesium borate in concentrated brine during solar evaporation. Either MgSO4-saturated boron-containing brine or boron-containing MgCU -saturated brine, in which the mirabilite was dissolved before, is evaporated and concentrated to the extent that the hydrated Mg-borate has just crystallized, the roughly same maximum solubility of Mg-borate, 7.36-7.50%MgB₄O₇, can be obtained.更多还原