利用盐田钾镁混盐矿制取软钾镁矾的研究

Study on the Separation of Picromerite from the Mixture of Potassium and Magnesium Produced from Salar Ponds

硫酸盐型盐湖卤水经日晒可得到钾镁混盐，将钾镁混盐矿加水溶解蒸发可制得较高品位的软钾镁矾，其母液可继续处理钾镁混盐矿，钾和硫酸根的收率在90％以上。

The mixture of Potassium and magenesium can be produced by evaporating the Sulfate-type salt lake brine in solar ponds. After dissolving the mixture in water and evaporating the solition of the mixture in solar ponds,the quality picromerite can be obtained. The mother-liquid is recycled to process the mixture,the recovery ratio of ions of sulfate and patassium available in the process is more then 90%.