ELECTRODIALYSIS OF INORGANIC SALT-CONTAINING CATIONIC SURFACTANT SOLUTION

摘要

PURPOSE:To remove an inorg. salt from an inorg. salt-containing cationic surfactant solution by electrodialysis using a hydrophilic neutral membrane and an anion exchange membrane. CONSTITUTION:An inorg. salt is removed by electrodialysis using a hydrophilic neutral membrane whose water retention quantity is 0.05-2.0ml/g dry resin and a cation exchange membrane. Stable operation can be performed over a long period of time and a cationic surfactant can be recovered in high recovery rate.