searchers at Institute of Science Tokyo (Science Tokyo) have developed a new liquid–metal process that can recover freshwater and magnesium resources from the concentrated brine. By combining liquid-tin direct-contact distillation with vacuum degassing, the method removes chlorine- and sulfur-containing species from the tin and enables magnesium-rich precipitates, with MgO as the major crystalline phase, to be recovered during cooling. More than 99% of the magnesium taken up by the liquid tin was recovered.
Water scarcity is becoming increasingly serious worldwide as population growth and cl