Department of Mining and Metallurgical Engineering, Amirkabir University of Technology, Tehran 158754413, Iran.
Department of Mining and Metallurgical Engineering, Amirkabir University of Technology, Tehran 158754413, Iran.
J Environ Manage. 2018 Feb 1;207:169-179. doi: 10.1016/j.jenvman.2017.10.066. Epub 2017 Nov 22.
In this study, the effects of chemical conditions on the recovery of Zn(II) and water during the ion flotation process were evaluated using a central composite design (CCD) of response surface methodology. The optimum effective parameters including pH, collector and frother concentration were determined. The results showed that the pH and collector concentration were effective factors for the efficiency of Zn(II) flotation. The effects of collector and frother concentration on the characterization of sublate and the complexation of sodium dodecyl sulphate with Zn(II) were studied using scanning electron microscopy coupled with energy dispersive X-ray (SEM/EDX) spectroscopy and Fourier transform infrared (FTIR) spectroscopy. The results show that foam fractionation occurred at a pH of 1.5, 3 and 5.5 and ion flotation at a pH of 8.
在这项研究中，使用响应面法的中心复合设计 (CCD) 评估了化学条件对离子浮选过程中锌(II)和水回收的影响。确定了最佳有效参数，包括 pH 值、捕收剂和起泡剂浓度。结果表明，pH 值和捕收剂浓度是影响锌(II)浮选效率的有效因素。使用扫描电子显微镜结合能谱 (SEM/EDX) 光谱和傅里叶变换红外 (FTIR) 光谱研究了捕收剂和起泡剂浓度对底流特性和十二烷基硫酸钠与锌(II)的络合作用的影响。结果表明，泡沫浮选发生在 pH 值为 1.5、3 和 5.5，离子浮选发生在 pH 值为 8。
