USE OF Mg(HCO3)2 AND/OR Ca(HCO3)2 AQUEOUS SOLUTION IN METAL EXTRACTIVE SEPARATION AND PURIFICATION

摘要

The application of aqueous solution of magnesium bicarbonate and/or calcium bicarbonate in the process of extraction separation and purification of metals is disclosed, wherein the aqueous solution of magnesium bicarbonate and/or calcium bicarbonate is used as an acidity balancing agent, in order to adjust the balancing pH value of the extraction separation process which uses an acidic organic extractant, improve the extraction capacity of organic phase, and increase the concentration of metal ions in the loaded organic phase.