Flotation Separation of Soluble and Colloidal Indium from Aqueous Solution

摘要: This work investigated the speciation and solubility of indium (In) its flotation separation from aqueous solution. Lowest theoretical In was predicted for pH 5.5–8.5, increased as it became more acidic or alkaline. Experimentally, 20 mg/L completely dissolved at 9.9. Flotation reaction described by pseudo-first-order kinetic model rate with increasing nitrogen flow rate. The results indicated that played a key process. As 4.0 to 6.8, removal efficiency rose 65.0% 95.8% when applying surfactant SDS collector. decreased 56.7% Lower found once using CTAB. Electrostatic interaction between collector both soluble colloidal main mechanism flotation.