Study on Flotation Separation of Cobalt(II) by NaCl-NH4SCN-DDBAC System
Abstract
The flotation separation behaviors of Co2+ using NaCl-NH4SCN-dodecyl dimethyl benzyl ammonium chloride(DDBAC) system and the conditions for the separation of Co2+, were studied. The results showed that in the presence of 1.5 g NaCl, when the dosage of 0.10 mol/L NH4SCN solution was 0.30 mL and 0.0010 mol/L DDBAC solution was 1.00 mL respectively, the ternary association complex settlement of (DDBAC)2[Co(SCN4)] which formed by DDBAC+, SCN- and Co2+ floated above water phase and liquid-solid phases was formed with clear interface. While Ni2+, Fe3+, Al3+ and Mn2+ could not be floated. Therefore, the quantitative separation of Co2+ from Ni2+, Fe3+, Al3+ and Mn2+ could be achieved. The quantitative flotation separation of Co2+ in the sample of synthetic water was performed, and the recoveries were 92.3%∼98.6%.
- Publication:
-
IOP Conference Series: Earth and Environmental Science
- Pub Date:
- February 2019
- DOI:
- 10.1088/1755-1315/237/3/032104
- Bibcode:
- 2019E&ES..237c2104W