Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
6672595 | Minerals Engineering | 2018 | 6 Pages |
Abstract
A novel surfactant 2-((2-(decyloxy)ethyl)amino)lauric acid (LDEA) - substituting 3-(decyloxy)propan-1-amine (DPA) on the α-carbon position of lauric acid was firstly synthesized and utilized as a collector for the flotation of quartz mineral at a relatively low temperature. The flotation performances and adsorption mechanisms of LDEA collector on quartz mineral surface were investigated by zeta potential measurements, Fourier transform infrared (FT-IR) spectroscopy, and X-ray photoelectron spectroscopy (XPS), in conjunction with the results of quartz micro-flotation tests. The flotation results showed that LDEA exhibited an excellent collecting performance on quartz mineral at a wide pulp pH range (about 6-11) with a low collector concentration 15.0â¯mg/L at a relatively low temperature 15â¯Â°C, where above 95.0% of the quartz mineral could be floated. Zeta potential measurements, FT-IR spectra, and XPS analyses reveal that the LDEA collector could be adsorbed on the surface of pure quartz in the forms of electrostatic and hydrogen bonding interactions at pulp pH 10.0.
Related Topics
Physical Sciences and Engineering
Chemical Engineering
Chemical Engineering (General)
Authors
Binbin Luo, Yimin Zhu, Chuanyao Sun, Yanjun Li, Yuexin Han,