| 摘要 |
<p>The invention provides a process for the separation and recovery of at least one selected salt from a mixture of salts containing at least one salt, the solubility of which increases with increase in temperature, comprising providing a pond having a dark bottom surface and a plurality of stratified salt solution layers wherein the solution closest to the bottom contains a salt concentration higher than that in the upper layers, the solution closest to the bottom is hotter than those in the upper layers and at least some of the layers are saturated with at least one salt; introducing a feed solution containing at least one salt, the solubility of which increases with increase in temperature into the pond thereby resulting in an increased ratio of the at least one salt in the bottom layer; withdrawing a solution from the bottom zone; and withdrawing a solution from the upper zone.</p> |
