2007
DOI: 10.1016/j.mineng.2007.03.012
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Chelating reagents for flotation

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Cited by 106 publications
(25 citation statements)
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“…Most of new reagents found effective for low grade ores were chemicals capable of interacting with specific ions in mineral lattice. [3][4][5] Pyrochlore [(Na,Ca) 2 Nb 2 O 6 (OH,F)] is currently the most important commercially exploitable niobium containing mineral, which usually co-exists and associates with carbonate rocks in the Earth's crust. In the processing of the carbonatite niobium ores, significant amounts of fines are generated due to the friable nature of the niobium oxide minerals and the soft carbonatite rock matrix.…”
Section: Introductionmentioning
confidence: 99%
“…Most of new reagents found effective for low grade ores were chemicals capable of interacting with specific ions in mineral lattice. [3][4][5] Pyrochlore [(Na,Ca) 2 Nb 2 O 6 (OH,F)] is currently the most important commercially exploitable niobium containing mineral, which usually co-exists and associates with carbonate rocks in the Earth's crust. In the processing of the carbonatite niobium ores, significant amounts of fines are generated due to the friable nature of the niobium oxide minerals and the soft carbonatite rock matrix.…”
Section: Introductionmentioning
confidence: 99%
“…OHA species can be adsorbed on the nonpolar part of the former OHA species through hydrogen bonds [17,19]. Therefore, at a pH of about 6.5, the multi-layer adsorption of OHA species and the relative increase of the perovskite surface's active metal cations significantly increase the flotability of the perovskite [39][40][41][42][43]. OHA species can be adsorbed on the nonpolar part of the former OHA species through hydrogen bonds [17,19].…”
Section: Microflotation Experimentsmentioning
confidence: 99%
“…[11,12,14] To find a collector with specificity for a given surface, the interaction with the entire surface needs to be considered; [15] it is not enough to consider only its complexation chemistry with the surface metal ion(s). [16,17] For that purpose collector molecules with two functional groups [18,19] have been synthesized and evaluated in order to achieve mineral specificity in flotation separation of calcium minerals. These anionic surfactants [20,21] have only one hydrophobic tail while the polar part consists of two carboxyl groups with varying distance between them (Figure 1).…”
Section: Introductionmentioning
confidence: 99%