| 摘要 |
PURPOSE:To efficiently separate cobalt from an aqueous soln. contg. cobalt by selective adsorption by bringing the soln. into contact with a chelate resin having specified functional groups. CONSTITUTION:An aqueous soln. contg. 10,000-70,000ppm cobalt is adjusted to <=7pH and brought into contact with a chelate resin having one or more kinds of functional groups selected among amino acid, iminoacetic acid, iminodiacetic acid, iminopropionic acid, iminodipropionic acid, aminoalkylenephosphoric acid, alkylenephosphoric acid and phosphoric acid. The cobalt in the soln. is selectively adsorbed on the chelate resin and separated.
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