| 摘要 |
PROBLEM TO BE SOLVED: To efficiently remove an acid from a heavy metal-containing acid solution using a low basic anion exchange resin and to provide an apparatus for the removal. SOLUTION: An acid is removed from an acid solution using a weakly basic anion exchange resin based on a styrenic copolymer. The ion exchange groups of the resin include a salt type quaternary ammonium group and regeneration type primary to tertiary amino groups. |
