The role of EDTA on rutile flotation using Al3+ ions as an activator

doi:10.1039/c7ra10576b

CORC > 上海应用物理研究所 > 中国科学院上海应用物理研究所 > 中科院上海应用物理研究所2011-2017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
刊名	RSC ADVANCES
	2018
卷号	8 期号:9 页码:4872-4880
关键词	Sulfide Minerals Double-layer Adsorption Salt Ilmenite Titanium Behavior Gradient
ISSN号	2046-2069
DOI	10.1039/c7ra10576b
文献子类	期刊论文
英文摘要	Rutile 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.
语种	英语
WOS记录号	WOS:000423898000040
内容类型	期刊论文
源URL	[http://ir.sinap.ac.cn/handle/331007/29179]
专题	上海应用物理研究所_中科院上海应用物理研究所2011-2017年
作者单位	1.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
推荐引用方式 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.