The flotation of kyanite and sillimanite with sodium oleate as the collector

Jin, J; Gao, H; Ren, Z; Chen, Z

The flotation of kyanite and sillimanite with sodium oleate as the collector

Jin, J Gao, H Ren, Z Chen, Z

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Publisher:: MDPI AG
Publication Type:: Journal Article
Citation:: Minerals, 2016, 6, (3)
Issue Date:: 2016-09-01

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Field	Value	Language
dc.contributor.author	Jin, J
dc.contributor.author	Gao, H
dc.contributor.author	Ren, Z
dc.contributor.author	Chen, Z https://orcid.org/0000-0003-0627-0856
dc.date.accessioned	2022-10-13T22:13:23Z
dc.date.available	2022-10-13T22:13:23Z
dc.date.issued	2016-09-01
dc.identifier.citation	Minerals, 2016, 6, (3)
dc.identifier.issn	2075-163X
dc.identifier.issn	2075-163X
dc.identifier.uri	http://hdl.handle.net/10453/162569
dc.description.abstract	Kyanite and sillimanite are two polymorphic minerals with the same formula of Al2SiO5, but different crystal structures. Despite their high economic values, selectively recovering them by flotation is a challenge. In this study, the flotation behaviors of the two minerals with sodium oleate as the collector were examined at different pH conditions. Zeta potential measurement, infrared spectroscopic measurement, chemical speciation and X-ray photoelectron spectroscopy measurement were conducted to identify the underpinning mechanisms. It is found that the flotation behavior of both minerals is different under the same flotation condition. The flotation recovery of sillimanite is much higher than that of kyanite in the presence of the collector sodium oleate. Sodium oleate adsorbs onto the surfaces of kyanite and sillimanite mainly through the chemical interaction of the ionic-molecular dimers with aluminum atoms at pH 8.0. The higher sillimanite flotation recovery between the two minerals is related to the higher electrostatic charge densities of the aluminum atoms in six-fold coordination, which leads to the higher collector adsorption.
dc.language	English
dc.publisher	MDPI AG
dc.relation.ispartof	Minerals
dc.relation.isbasedon	10.3390/min6030090
dc.rights	info:eu-repo/semantics/openAccess
dc.subject	0403 Geology, 0502 Environmental Science and Management, 0914 Resources Engineering and Extractive Metallurgy
dc.title	The flotation of kyanite and sillimanite with sodium oleate as the collector
dc.type	Journal Article
utslib.citation.volume	6
utslib.for	0403 Geology
utslib.for	0502 Environmental Science and Management
utslib.for	0914 Resources Engineering and Extractive Metallurgy
pubs.organisational-group	/University of Technology Sydney
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology/School of Civil and Environmental Engineering
utslib.copyright.status	open_access	*
dc.date.updated	2022-10-13T22:13:22Z
pubs.issue	3
pubs.publication-status	Published
pubs.volume	6
utslib.citation.issue	3

Abstract:

Kyanite and sillimanite are two polymorphic minerals with the same formula of Al2SiO5, but different crystal structures. Despite their high economic values, selectively recovering them by flotation is a challenge. In this study, the flotation behaviors of the two minerals with sodium oleate as the collector were examined at different pH conditions. Zeta potential measurement, infrared spectroscopic measurement, chemical speciation and X-ray photoelectron spectroscopy measurement were conducted to identify the underpinning mechanisms. It is found that the flotation behavior of both minerals is different under the same flotation condition. The flotation recovery of sillimanite is much higher than that of kyanite in the presence of the collector sodium oleate. Sodium oleate adsorbs onto the surfaces of kyanite and sillimanite mainly through the chemical interaction of the ionic-molecular dimers with aluminum atoms at pH 8.0. The higher sillimanite flotation recovery between the two minerals is related to the higher electrostatic charge densities of the aluminum atoms in six-fold coordination, which leads to the higher collector adsorption.

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http://hdl.handle.net/10453/162569