Application of competitive adsorption of ethylenediamine and polyetheramine in direct float of quartz from quartz-feldspar mixed minerals under neutral pH conditions

doi:10.1016/j.mineng.2022.107850

	Application of competitive adsorption of ethylenediamine and polyetheramine in direct float of quartz from quartz-feldspar mixed minerals under neutral pH conditions
	Jiang, Xuesong 1,3; Chen, Jian 1,2; Ban, Boyuan 1,2; Song, Wangfeng 1,3; Chen, Chen 1,3; Yang, Xiaoyong 3
刊名	MINERALS ENGINEERING
	2022-10-01
卷号	188
关键词	Flotation separation Competitive adsorption Depression mechanism Quartz Feldspar
ISSN号	0892-6875
DOI	10.1016/j.mineng.2022.107850
通讯作者	Chen, Jian(jchen@ipp.ac.cn)
英文摘要	Flotation is the most effective way to separate quartz and feldspar, but conventional flotation is usually achieved under acidic or alkaline conditions, which causes pollution to the environment. This study proposes a new method for a direct float of quartz from quartz-feldspar mixed minerals under neutral pH conditions. The method achieves the separation of minerals by competitive adsorption of ethylenediamine (EDA) and polyetheramine (PEA) on the particle surface. The effect of EDA and PEA on the separation of the quartz and the feldspar was investigated by flotation experiments. Using Fourier transform infrared spectroscopy (FTIR), X-ray photoelectron spectroscopy (XPS), X-ray powder diffractometry (XRD), Inductively coupled plasma-optical emission spec-trometry (ICP-OES), and X-Ray Fluorescence Spectrometer (XRF) tests, the flotation behavior, and adsorption mechanism were analyzed. The result of the flotation experiments of a single mineral shows that EDA can effectively depress the flotation of the feldspar and enlarge the difference between the flotation recovery of the quartz and the feldspar, up to Delta = 77%. The result of flotation experiments of the mixed minerals shows that the combination of EDA and PEA can effectively separate the quartz and the feldspar. For the froth products, the quartz content of 2-F-Qtz reaches 97.42% and the SiO2 grade is 99.12% at a quartz flotation recovery of 70.20%. For the sink products, the feldspar content of 4-S-Fsp reaches 94.77% and the SiO2 grade is 69.50% at a feldspar flotation recovery of 87.45%. A competitive-adsorption model is proposed to explain the mechanism of the direct float of the quartz from the quartz-feldspar mixed minerals under neutral pH conditions.
资助项目	National Natural Science Foundation of China[51874272] ; National Natural Science Foundation of China[51804294] ; National Natural Science Foundation of China[52111540265] ; Anhui Provincial Natural Science Foundation[1808085ME121] ; Key Laboratory of Photovoltaic and Energy Conservation Materials, Chinese Academy of Science[PECL2021QN003] ; HFIPS President Foundation[YZJJZX202018] ; International Clean Energy Talent Program by China Scholarship Council
WOS关键词	FLOTATION ; SEPARATION ; COLLECTORS ; PARTICLES ; MECHANISM ; SURFACE ; ACID
WOS研究方向	Engineering ; Mineralogy ; Mining & Mineral Processing
语种	英语
出版者	PERGAMON-ELSEVIER SCIENCE LTD
WOS记录号	WOS:000873910900007
资助机构	National Natural Science Foundation of China ; Anhui Provincial Natural Science Foundation ; Key Laboratory of Photovoltaic and Energy Conservation Materials, Chinese Academy of Science ; HFIPS President Foundation ; International Clean Energy Talent Program by China Scholarship Council
内容类型	期刊论文
源URL	[http://ir.hfcas.ac.cn:8080/handle/334002/129797]
专题	中国科学院合肥物质科学研究院
通讯作者	Chen, Jian
作者单位	1.Chinese Acad Sci, Inst Solid State Phys, Key Lab Photovolta & Energy Conservat Mat, HFIPS, Hefei 230031, Peoples R China 2.Hefei Comprehens Natl Sci Ctr, Inst Energy, Hefei 230031, Peoples R China 3.Univ Sci & Technol China, CAS Key Lab Crust Mantle Mat & Environm, Hefei 230026, Peoples R China
推荐引用方式 GB/T 7714	Jiang, Xuesong,Chen, Jian,Ban, Boyuan,et al. Application of competitive adsorption of ethylenediamine and polyetheramine in direct float of quartz from quartz-feldspar mixed minerals under neutral pH conditions[J]. MINERALS ENGINEERING,2022,188.
APA	Jiang, Xuesong,Chen, Jian,Ban, Boyuan,Song, Wangfeng,Chen, Chen,&Yang, Xiaoyong.(2022).Application of competitive adsorption of ethylenediamine and polyetheramine in direct float of quartz from quartz-feldspar mixed minerals under neutral pH conditions.MINERALS ENGINEERING,188.
MLA	Jiang, Xuesong,et al."Application of competitive adsorption of ethylenediamine and polyetheramine in direct float of quartz from quartz-feldspar mixed minerals under neutral pH conditions".MINERALS ENGINEERING 188(2022).