Fluoride activation in oleate flotation of collophanite

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Publication Type Journal Article
School or College College of Mines & Earth Sciences
Department Metallurgical Engineering
Creator Miller, Jan D.
Other Author Misra, M.; Yehia, A.; Hu, J. S.
Title Fluoride activation in oleate flotation of collophanite
Date 1987
Description Fluoride activation has been evaluated by Hallimond tube flotation of collophanite in terms of fluoride concentration, conditioning time, pH, and temperature. The results reveal that efficient oleate flotation of collophanite can be achieved by fluoride activation. Experimental results of fluoride adsorption by collophanite suggest that, at low fluoride concentration, a fluoroapatite-type compound may form on the collophanite surface by chemisorption of fluoride ions at calcium sites. At high fluoride concentration, calcium fluoride appears to form at the collophanite surface involving a surface precipitation phenomenon. The formation of CaF2 on the surface of fluoride-treated collophanite is further substantiated by the FTIR spectroscopic measurements, which suggest a metathetic exchange with phosphate from the collophanite lattice during the surface precipitation process.
Type Text
Publisher Society for Mining, Metallurgy, and Exploration
Volume 4
First Page 133
Last Page 139
Subject Fluoride; Oleate; Collophanite; Flotation; Calcium; Chemisorption
Subject LCSH Chemisorption; Flotation; Separation (Technology)
Language eng
Bibliographic Citation Miller, J. D., Misra, M., Yehia, A., & Hu, J. S. (1987). Fluoride activation in oleate flotation of collophanite. Minerals and Metallurgical Processing, SME/AIME, 4, 133-9.
Format Medium application/pdf
Format Extent 5,930,613 Bytes
Identifier ir-main,4476
ARK ark:/87278/s6hq4h3g
Setname ir_uspace
Date Created 2012-06-13
Date Modified 2021-05-06
ID 703250
Reference URL https://collections.lib.utah.edu/ark:/87278/s6hq4h3g
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