The purification of wet process phosphoric acid using solvent extraction has been widely applied at industrial scale. However, the performance of the purification depends strongly on the solvent characteristics. Common solvents used for the extraction are butanol, hexanol, tributyl phosphate (TBP) and MIBK mixture, in which TBP/Kerosene have proved to be one of the the most efficient solvent mixture. | Practical study of purification of Lao Cai wet process phosphoric acid, based on tributyl phosphate (TBP) – kerosene mixture solvent extraction
