PROCESS FOR EXTRACTION AND PRECIPITATION OF POTASSIUM CHLORIDE FROM AQUEOUS POTASSIUM CHLORIDE SOLUTION USING SODIUM TETRAPHENYL BORATE

摘要

The present invention provides a cyclic process for the recovery of potassium from potassium containing aqueous solutions. The process comprises the precipitation of potassium from depleted solution of TEATPB with sodium hydroxide and regenerate the starting material NaTPB to repeat the cycle further upto four cycle. The invention also eliminates the need for solar evaporation of seawater in order to make K-rich bittern.