CAS OpenIR  > 中科院上海应用物理研究所2011-2020年
The role of EDTA on rutile flotation using Al3+ ions as an activator
Xiao, W; Fang, CJ; Wang, J; Liang, QN; Cao, P; Wang, XX; Zhang, LJ; Qiu, GZ; Hu, J
Source PublicationRSC ADVANCES
AbstractRutile is a relatively stable mineral, due to its weakly specific adsorption to collectors. The development and application of a high efficiency and low-toxicity activator is the main challenge in rutile flotation. In this study, Al3+ ions and EDTA (ethylene diamine tetraacetic acid) as mixed activators were investigated using micro-flotation tests. The results of the micro-flotation tests showed that the flotation recovery was slightly increased (from 65.8% to 69.7%) using single Al3+ ions as the activator and surprisingly, the activating effect was sharply improved (from 69.7% to 80.6%) after adding EDTA. The activating mechanism of Al3+ ions and EDTA was revealed by adsorption capacity measurements, zeta potential measurements, FT-IR spectroscopy analysis and XPS analysis. Al3+ ions were adsorbed on the rutile surface in the form of Al(OH)(n)(3-n) (n = 0, 1, 2), which increased the zeta potential and the activating sites for anionic collector adsorption. The addition of EDTA removed the surplus Al3+ ions, and prevented the generation of hydrophilic colloidal Al(OH)(3) over the pH range of optimum flotation.
KeywordSulfide Minerals Double-layer Adsorption Salt Ilmenite Titanium Behavior Gradient
Indexed BySCI
WOS IDWOS:000423898000040
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Cited Times:15[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Affiliation1.Xiao, W
2.Fang, CJ
3.Wang, J
4.Liang, QN
5.Cao, P
6.Wang, XX
7.Zhang, LJ
8.Qiu, GZ
9.Hu, J
Recommended Citation
GB/T 7714
Xiao, W,Fang, CJ,Wang, J,et al. The role of EDTA on rutile flotation using Al3+ ions as an activator[J]. RSC ADVANCES,2018,8(9):4872-4880.
APA Xiao, W.,Fang, CJ.,Wang, J.,Liang, QN.,Cao, P.,...&Hu, J.(2018).The role of EDTA on rutile flotation using Al3+ ions as an activator.RSC ADVANCES,8(9),4872-4880.
MLA Xiao, W,et al."The role of EDTA on rutile flotation using Al3+ ions as an activator".RSC ADVANCES 8.9(2018):4872-4880.
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