Selective separation of fluorite, barite and calcite with valonea extract and sodium fluosilicate as depressants

Ren, Z; Yu, F; Gao, H; Chen, Z; Peng, Y; Liu, L

Selective separation of fluorite, barite and calcite with valonea extract and sodium fluosilicate as depressants

Ren, Z Yu, F Gao, H Chen, Z

Peng, Y Liu, L

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Publisher:: MDPI
Publication Type:: Journal Article
Citation:: Minerals, 2017, 7, (2)
Issue Date:: 2017-02-16

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Field	Value	Language
dc.contributor.author	Ren, Z
dc.contributor.author	Yu, F
dc.contributor.author	Gao, H
dc.contributor.author	Chen, Z https://orcid.org/0000-0003-0627-0856
dc.contributor.author	Peng, Y
dc.contributor.author	Liu, L
dc.date.accessioned	2022-10-28T06:09:23Z
dc.date.available	2022-10-28T06:09:23Z
dc.date.issued	2017-02-16
dc.identifier.citation	Minerals, 2017, 7, (2)
dc.identifier.issn	2075-163X
dc.identifier.issn	2075-163X
dc.identifier.uri	http://hdl.handle.net/10453/162821
dc.description.abstract	Fluorite, barite and calcite are important industry minerals. However, they often co-exist, presenting difficulty in selectively separating them due to their similar surface properties. In this study, valonea extract and sodium fluosilicate were used as depressants to selectively separate them by flotation, with sodium oleate as the collector. The single mineral flotation results showed that valonea extract displayed the strongest depression on calcite, while sodium fluosilicate displayed the strongest depression on barite. These two depressants allowed selective separation of the three minerals through sequential flotation. The flotation of mixed minerals showed that 94% of the calcite was successfully depressed by the valonea extract, and 95% recovery of the fluorite was achieved in the subsequent flotation with sodium fluosilicate depressing barite. The different depressant-mineral interactions were investigated via electro-kinetic studies and molecular dynamics (MD) simulations using the Materials Studio 6.0 program. The valonea extract exhibited the strongest adsorption on the calcite surface, and sodium fluosilicate exhibited the strongest adsorption on the barite surface, which prevented oleate species from reacting with Ca2+ or Ba2+ surface sites. This study provides useful guidance for how to process fluorite, barite and calcite resources.
dc.language	English
dc.publisher	MDPI
dc.relation.ispartof	Minerals
dc.relation.isbasedon	10.3390/min7020024
dc.rights	info:eu-repo/semantics/openAccess
dc.subject	0403 Geology, 0502 Environmental Science and Management, 0914 Resources Engineering and Extractive Metallurgy
dc.title	Selective separation of fluorite, barite and calcite with valonea extract and sodium fluosilicate as depressants
dc.type	Journal Article
utslib.citation.volume	7
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	2022-10-28T06:09:21Z
pubs.issue	2
pubs.publication-status	Published
pubs.volume	7
utslib.citation.issue	2

Abstract:

Fluorite, barite and calcite are important industry minerals. However, they often co-exist, presenting difficulty in selectively separating them due to their similar surface properties. In this study, valonea extract and sodium fluosilicate were used as depressants to selectively separate them by flotation, with sodium oleate as the collector. The single mineral flotation results showed that valonea extract displayed the strongest depression on calcite, while sodium fluosilicate displayed the strongest depression on barite. These two depressants allowed selective separation of the three minerals through sequential flotation. The flotation of mixed minerals showed that 94% of the calcite was successfully depressed by the valonea extract, and 95% recovery of the fluorite was achieved in the subsequent flotation with sodium fluosilicate depressing barite. The different depressant-mineral interactions were investigated via electro-kinetic studies and molecular dynamics (MD) simulations using the Materials Studio 6.0 program. The valonea extract exhibited the strongest adsorption on the calcite surface, and sodium fluosilicate exhibited the strongest adsorption on the barite surface, which prevented oleate species from reacting with Ca2+ or Ba2+ surface sites. This study provides useful guidance for how to process fluorite, barite and calcite resources.

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http://hdl.handle.net/10453/162821