Recovery of L-lysine from L-lysine monohydrochloride by ion substitution using ion-exchange membrane

► L-lys were recovered from L-lys·HCl by ion substitution electrodialysis. ► The highest Cl− removal ratio achieves 95.6%. ► The highest recovery ratio of L-Lys reaches 93.2%. ► Elevating temperature can improve the electrodialysis process.