Pdf Styrene Phosphonic Acid Flotation

(PDF) Styrenedivinylbenzene copolymer grafted with
In this paper some results on the synthesis of styrene-divinylbenzene copoly- mer grafted with phosphonic dialkylesters using a modified Kinnear-Perren-Klay method are presented (Scheme 1).6, 7 The fraction of the repetitive units was * Author for correspondence.
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In Situ Investigation of the Adsorption of Styrene Phosphonic
Abstract: The flotation, adsorption and bonding mechanisms of styrene phosphonic acid (SPA) to cassiterite were studied using microflotation tests, zeta potential measurements, solution chemistry analysis and density functional theory (DFT) calculations in this paper. Flotation results demonstrated SPA was an excellent collector for cassiterite which could recover over 85%
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Solubilization of styrene in the catanionic system
1998/03/01The solubilization of styrene in micelles of the catanionic surfactant dodecyltrimethylammonium hydroxide (DTAOH)–n-dodecane-phosphonic acid (DPA) was studied by UV–Vis. spectrometry, as a function of the DTAOH:DPA proportion in the surfactant mixture. The styrene molecules are adsorbed at the surface of the micelles, with the vinyl
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Selectivity of Benzyl Hydroxamic Acid in the Flotation of Ilmenite
2019/12/24Beyond that, the cyclohexyl hydroxamic acid (Zhao et al., 2013) and octyl hydroxamic (Meng et al., 2015) were employed in the flotation of scheelite flotation and fine wolframite flotation. Novel carboxyl hydroxamic acids ( Jiang et al., 2010 ) were also be designed and used for the flotation of aluminosilicate minerals.
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In Situ Investigation of the Adsorption of Styrene Phosphonic
Phosphonic acids have the ability to chelate strongly with many metal ions and can be used as the extractants to recover U(VI), Th(IV), Pu(IV), and Am(III) from aqueous solutions [18]. When used in mineral processing, styrene phosphonic acid (SPA) was reported as one of the easiest to
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In Situ Investigation of the Adsorption of Styrene Phosphonic
Abstract: The flotation, adsorption and bonding mechanisms of styrene phosphonic acid (SPA) to cassiterite were studied using microflotation tests, zeta potential measurements, solution chemistry analysis and density functional theory (DFT) calculations in this paper. Flotation results demonstrated SPA was an excellent collector for cassiterite which could recover over 85%
Get price
Flotation behavior and mechanism of styrene phosphonic acid
2021/01/01Styrene phosphonic acid (SPA) is a common organic acid with low toxicity and is very easy to be synthesized. It is widely used in many industries especially in extraction and flotation. For the flotation, SPA is an effective,,,,
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Selectivity of Benzyl Hydroxamic Acid in the Flotation of Ilmenite
2019/12/24Beyond that, the cyclohexyl hydroxamic acid (Zhao et al., 2013) and octyl hydroxamic (Meng et al., 2015) were employed in the flotation of scheelite flotation and fine wolframite flotation. Novel carboxyl hydroxamic acids ( Jiang et al., 2010 ) were also be designed and used for the flotation of aluminosilicate minerals.
Get price
Solubilization of styrene in the catanionic system
1998/03/01The solubilization of styrene in micelles of the catanionic surfactant dodecyltrimethylammonium hydroxide (DTAOH)–n-dodecane-phosphonic acid (DPA) was studied by UV–Vis. spectrometry, as a function of the DTAOH:DPA proportion in the surfactant mixture. The styrene molecules are adsorbed at the surface of the micelles, with the vinyl
Get price
スチレンホスホンによるSnO_2のにする
1987/09/30 Flotation and some related surface chemical properties such as zeta potential, adsorption of collector and coagulation of suspensions, were studied using fine particles of artificial SnO_2 (chemical reagent) and styrene phosphonic acid (SPA) as a collector. The results obtained are summarized as follows. 1. The isoelectric point of SnO_2 was found to be
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Selectivity of Benzyl Hydroxamic Acid in the Flotation of Ilmenite
2019/12/24Beyond that, the cyclohexyl hydroxamic acid (Zhao et al., 2013) and octyl hydroxamic (Meng et al., 2015) were employed in the flotation of scheelite flotation and fine wolframite flotation. Novel carboxyl hydroxamic acids ( Jiang et al., 2010 ) were also be designed and used for the flotation of aluminosilicate minerals.
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Studies on styrene phosphonic acid
1996/08/01Some properties of styrene phosphonic acid (SPA) were studied. The crystals were triclinic, witha=0.6434 nm,b=0.5842 nm,c=2.0338 nm, α=96.17, β=97.33, γ=79.65 andZ=4. SPA underwent a change in crystal structure at 78.8C, the hydrocarbon network became disordered ("liquid-like") at 138.5C. Crystals melted at 148.6C giving a cubic
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Original PapersFlotation Studies of SnO_2 Fine Particles
Flotation and some related surface chemical properties such as zeta potential, adsorption of collector and coagulation of suspensions, were studied using fine particles of artificial SnO_2 (chemical reagent) and styrene phosphonic
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Cassiterite flotation using styrene phosphonic acid to produce
1992/03/01Styrene phosphonic acid (SPA) is one of the best collector reagents for flotation of cassiterite and the best collector for the flotation of finely disseminated cassiterite and wolframite ores. Data from our research work has
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Studies on styrene phosphonic acid
1996/08/01Some properties of styrene phosphonic acid (SPA) were studied. The crystals were triclinic, witha=0.6434 nm,b=0.5842 nm,c=2.0338 nm, α=96.17, β=97.33, γ=79.65 andZ=4. SPA underwent a change in crystal structure at 78.8C, the hydrocarbon network became disordered ("liquid-like") at 138.5C. Crystals melted at 148.6C giving a cubic
Get price
The synthesis of flotation collectors for cassiterite
phosphonic acid functionalifies'. P7ri-Vioilily prepared acids of this class were, in general, poorly characterised prior to this work or not found in the literature. In this work particular use 31 13 1 has been made of N.M.Rand confirm
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Comparative Study of the Application of Chelating Resins for
Early work on resins containing phosphonic acid functional groups revealed a high affinity for the adsorption of REE from acidic liquors. 10 The selectivity for the REE was found to be superior to bivalent base metal ions although similar to other trivalent metals such as Bi(III),
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Process for the recovery of uranium from phosphoric acid
1985/06/05There is introduced into this solution ethylene diamine tetramethylene phosphonic acid in a concentration of 7.10 ppm, and 7.1 ppm of a co-reagent, hexylaminodimethylene phosphonic acid. After passing air bubbles through the mixture for 30 minutes, there is collected a foam that contains, in the form of a green precipitate, 80% of the uranium in the acid.
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Process for the recovery of uranium from phosphoric acid
1985/06/05There is introduced into this solution ethylene diamine tetramethylene phosphonic acid in a concentration of 7.10 ppm, and 7.1 ppm of a co-reagent, hexylaminodimethylene phosphonic acid. After passing air bubbles through the mixture for 30 minutes, there is collected a foam that contains, in the form of a green precipitate, 80% of the uranium in the acid.
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Bastnaesite, Barite, and Calcite Flotation Behaviors with
The flotation of bastnaesite, as a major mineral source of rare earth elements, attracting much attention in the mineral processing field, is challenging owing to the natural flotability of calcium-bearing minerals. To promote the application of flotation, we systematically investigated the flotation behavior of bastnaesite, barite, and calcite, with salicylhydroxamic acid (SHA) as the
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In Situ Investigation of the Adsorption of Styrene Phosphonic
Abstract: The flotation, adsorption and bonding mechanisms of styrene phosphonic acid (SPA) to cassiterite were studied using microflotation tests, zeta potential measurements, solution chemistry analysis and density functional theory (DFT) calculations in this paper.
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Effect and mechanism of Cu(II) on flotation separation of
2020/05/01The collector styrene phosphonic acid (SPA) was prepared by recrystallizing a technical pure product, and the final purity of SPA was about 94%. The analytical pure pH regulators HCl and NaOH, frother MIBC and Cu(II) provider CuCl 2 were purchased from the Shanghai Aladdin Chemical Reagent Co., Ltd., China.
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Inventory of Tin Ore Processing Technology and Equipment
It can be used with sodium alkyl sulfate and styrene phosphonic acid to expand the flotation area and facilitate the flotation of cassiterite, and can also be used as an inhibitor of vein minerals to improve the concentrate grade.
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In Situ Investigation of the Adsorption of Styrene Phosphonic
Abstract: The flotation, adsorption and bonding mechanisms of styrene phosphonic acid (SPA) to cassiterite were studied using microflotation tests, zeta potential measurements, solution chemistry analysis and density functional
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Synthesis and characterization of a novel difluoromethylene
2018/08/24A novel polymer featuring difluoromethylene phosphonic acid functions was prepared by free radical polymerization of a styrene monomer that is decorated by phosphonic ester groups. The obtained polymer was analyzed by gel
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Phosphonic Acid
Phosphonic Acid-Functionalized Diblock Copolymer Nano-Objects via Polymerization-Induced Self-Assembly: Synthesis, Characterization, and Occlusion into Calcite Crystals Andreas Hanisch,† Pengcheng Yang,† Alexander N. Kulak,‡ Lee A. Fielding,†, Fiona C. Meldrum,‡
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