| 摘要 |
PURPOSE:To recover In from a soln. contg. In at a low cost by bringing a chelate resin having specified functional groups into contact with the soln. CONSTITUTION:A chelate resin having one or more kinds of functional groups selected among phosphine groups, phosphonium salt groups, phosphinic acid groups, phosphinic ester groups, phosphonic acid groups, phosphonic ester groups, aminoalkylenephosphoric ester groups and metallic salts thereof is prepd. The chelate resin is brought into contact with a soln. contg. In such as sea water or a sulfuric acid leaching soln. produced as a by-product when Zn or Pb is manufacture to recover the In. |
