Effect of geological origin of apatite on reverse flotation separation of phosphate ores using phosphoric acid as depressant

Li, H; Chen, Y; Zheng, H; Huang, P; Yang, P; Chen, Q; Weng, X; He, D; Song, S

Effect of geological origin of apatite on reverse flotation separation of phosphate ores using phosphoric acid as depressant

Li, H Chen, Y Zheng, H Huang, P Yang, P Chen, Q Weng, X He, D Song, S

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Publisher:: Elsevier BV
Publication Type:: Journal Article
Citation:: Minerals Engineering, 2021, 172, pp. 107182
Issue Date:: 2021-10-01

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Field	Value	Language
dc.contributor.author	Li, H
dc.contributor.author	Chen, Y
dc.contributor.author	Zheng, H
dc.contributor.author	Huang, P
dc.contributor.author	Yang, P
dc.contributor.author	Chen, Q
dc.contributor.author	Weng, X
dc.contributor.author	He, D
dc.contributor.author	Song, S
dc.date.accessioned	2022-05-09T05:02:52Z
dc.date.available	2022-05-09T05:02:52Z
dc.date.issued	2021-10-01
dc.identifier.citation	Minerals Engineering, 2021, 172, pp. 107182
dc.identifier.issn	0892-6875
dc.identifier.uri	http://hdl.handle.net/10453/157151
dc.description.abstract	Apatites of different geological origins exhibit different floatabilities under the direct flotation process. However, the floatability of apatite from different geological origins under reverse flotation, especially in acidic environments, has not yet been reported. In this study, sedimentary (SD), igneous (IG), and sedimentary metamorphic (SM) apatite minerals are chosen as raw materials to investigate the relationship between the geological origin and flotation behavior of apatite in acidic environments, by means of flotation tests and a series of analyses. The geological origin of apatite affects its solubility in an acidic environment. Furthermore, compared to apatite from IG and SM deposits, there is more substitution of PO43− by CO32– on apatite from SD deposits, which accelerates the dissolution of Ca2+ and Mg2+ ions from its surface, thereby causing fewer active sites to remain on its surface. Under the same phosphoric acid dosage, the floatability of the three apatite follows: IG > SM > SD.
dc.language	en
dc.publisher	Elsevier BV
dc.relation.ispartof	Minerals Engineering
dc.relation.isbasedon	10.1016/j.mineng.2021.107182
dc.rights	info:eu-repo/semantics/closedAccess
dc.subject	0306 Physical Chemistry (incl. Structural), 0904 Chemical Engineering, 0914 Resources Engineering and Extractive Metallurgy
dc.subject.classification	Mining & Metallurgy
dc.title	Effect of geological origin of apatite on reverse flotation separation of phosphate ores using phosphoric acid as depressant
dc.type	Journal Article
utslib.citation.volume	172
utslib.for	0306 Physical Chemistry (incl. Structural)
utslib.for	0904 Chemical Engineering
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	closed_access	*
dc.date.updated	2022-05-09T05:02:51Z
pubs.publication-status	Published
pubs.volume	172

Abstract:

Apatites of different geological origins exhibit different floatabilities under the direct flotation process. However, the floatability of apatite from different geological origins under reverse flotation, especially in acidic environments, has not yet been reported. In this study, sedimentary (SD), igneous (IG), and sedimentary metamorphic (SM) apatite minerals are chosen as raw materials to investigate the relationship between the geological origin and flotation behavior of apatite in acidic environments, by means of flotation tests and a series of analyses. The geological origin of apatite affects its solubility in an acidic environment. Furthermore, compared to apatite from IG and SM deposits, there is more substitution of PO43− by CO32– on apatite from SD deposits, which accelerates the dissolution of Ca2+ and Mg2+ ions from its surface, thereby causing fewer active sites to remain on its surface. Under the same phosphoric acid dosage, the floatability of the three apatite follows: IG > SM > SD.

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http://hdl.handle.net/10453/157151