Study on Flotation Separation of Cobalt(II) by NaCl-NH4SCN-DDBAC System

4th International Conference on Advances in Energy Resources and Environment Engineering

能源学;生态环境科学

Wen, Xinrong^1 ; Tu, Changqing^1 ; Zhong, Yujun^2

College of Chemistry and Environment, Jiaying University, Meizhou

514015, China^1

College of Medicine, Jiaying University, Meizhou

514015, China^2

关键词: Ammonium chloride;    Flotation separation;    Liquid solids;    Quantitative separation;    Synthetic waters;    Water phase;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/237/3/032104/pdf
DOI  :  10.1088/1755-1315/237/3/032104

学科分类：环境科学（综合）

来源: IOP

【 摘 要 】

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%.