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Journal of Chemistry
Volume 2018 (2018), Article ID 5380480, 6 pages
Research Article

The Effect of New Modified Fatty Acid (CY-23) Collector on Chlorite/Hematite Separation

1Wuhan University of Technology, Wuhan 430070, China
2Hebei Iron and Steel Group Luan County Changyu Iron Mine Co., Ltd., Tangshan 063700, China
3Changsha Research Institute of Mining & Metallurgy Co., Ltd. (CRIMM), Changsha 410000, China

Correspondence should be addressed to Wenli Jiang

Received 8 August 2017; Revised 12 November 2017; Accepted 4 December 2017; Published 3 January 2018

Academic Editor: Tingyue Gu

Copyright © 2018 Wenli Jiang et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


The flotation separation on chlorite and hematite with the new modified fatty acid collector CY-23 was studied. The investigation included both flotation and reagent adsorption tests. And all the characteristics of chlorite surface before and after the adsorption of new collector CY-23 have been studied with X-ray photoelectron spectroscopy (XPS). The flotation results showed that caustic starch (CS) could depress the flotation of hematite and chlorite and CaCl2 could activate chlorite flotation but failed on hematite when using CY-23 as collector. The adsorption rate of CY-23 on the surface of chlorite after being inhibited by CS was relatively smaller, but the amount of CY-23 adsorbed on the inhibited chlorite was greatly increased after adding activator CaCl2. The results of XPS analysis showed that the photoelectron spectroscopy peaks of Mg2p and Al2p moved towards low energy after collector CY-23 was absorbed on chlorite surface, which indicated that chemical bonding through electron cloud transfer occurred between collector CY-23 and Mg, Al ions of chlorite surface. The chemical reaction promoted the adsorption of CY-23 on chlorite surface and eventually improved the ability of CY-23 to float and collect chlorite.