US3405802A US47057465A US3405802A US 3405802 A US3405802 A US 3405802A US 47057465 A US47057465 A US 47057465A US 3405802 A US3405802 A US 3405802A Authority US United States Prior art keywords flotation apatite ore pulp sulphonate Prior art date 1964-07-20 Legal status (The legal status is an assumption and is not a legal conclusion.
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FLOTATION ROUTES FOR A PHOSPHATE ORE BEARING SILICATE-CARBONATE GANGUE Rodrigo O. Albuquerque 1, ... apatite flotation, test T3, is illustrated in figure 4. The P 2O 5 grade reached 32.48% at the recovery level of 85.5%, indicating the high selectivity of the proposed route. APATITE FLOTATION CALCITE FLOTATION FLOTANOL D25 57.20 1.93 3.89 286.0 69.3 2.8 5.8 …
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Froth flotation is a process for selectively separating hydrophobic materials from hydrophilic. This is used in mineral processing, paper recycling and waste-water treatment industries. Historically this was first used in the mining industry, where it was one of the great enabling technologies of the 20th century. It has been described as "the single most important operation used for the ...
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Flotation of apatite is complicated, owing to its physicochemical similarity with other minerals in phosphate ores. Despite this, relatively few studies have been done on the effect of operating parameters, such as the mode of milling, pulp conditions and collector dosage on the kinetics of apatite flotation. In this technical note, the results of batch flotation tests and the fitting of a ...
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The laboratory has completed test work for these successfully developing suitable reagents suites and/or conditions for separating CaF₂ from apatite and upgrading apatite from carbonatite ores. The laboratory has also successfully depressed As and Fe oxides during flotation of CaF₂ producing a premium concentrate with a As levels below 4ppm and Fe levels below 0.4%.
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Mixed Anionic/Non-Ionic Collectors in Phosphate Gangue Flotation from Magnetite Fines K ... Bench-scale flotation tests showed that 50% of Atrac can be replaced with non-ionic collector without impairing the flotation results. Results also illustrate that the non-ionic adsorbs on apatite in equal amount of Atrac collector signifying 1:1 composition of anionic and non-ionic collector on apatite ...
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Selective reverse flotation of apatite from dolomite in collophanite ore using saponified gutter oil fatty acid as a collector. ... For the Ca 2 + dissolution test, 5 g of apatite (or dolomite) was placed in an 80 mL beaker, HCl or NaOH was added, the mixture was stirred for 10 min, and the pH of the pulp was determined. HCl was used instead of H 2 SO 4 because the reaction of SO 4 2 − with ...
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An alternative process was investigated to separate the siliceous gangue from a Brazilian phosphate ore. Flotation tests were conducted using a benchscale column. The main process variables were studied and optimized through a canonical analysis of the fitted empirical equation. The experimental results indicated that a product was obtained with the necessary concentration for further apatite ...
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Recommended Citation. André Carlos Silva, Débora Nascimento Sousa, Diego Valentim Crescente Cara, Alex Malue Machado, and Elenice Maria Schons Silva, "Alternative Depressor for Apatite Flotation" in "Beneficiation of Phosphates VIII", Dr. Patrick Zhang, Florida Industrial and Phosphate Research Institute, USA Professor Jan Miller, University of Utah, USA Professor Laurindo Leal Filho, Vale ...
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text new page (beta) English (pdf) Article in xml format; How to cite this article: SciELO Analytics; Automatic translation
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Minerals Free FullText Effects of Metal Ions on the. Minerals Free FullText Effects of Metal Ions on the:The effects of Ca 2 Mg 2 Al 3 and Fe 3 on the flotation behaviors of apatite dolomite and quartz were investigated through a microflotation test and the influence of calcium ions on the flotation of these minerals was further elucidated by solution chemistry study zeta potential measurement ...
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Also, some sub-samples were sized by sieving or hydrocycloning prior to flotation tests and most of the flotation products were also sized to understand the size distribution of flotation products and composition of different size fractions. XRD analysis have been done on specific size fractions and a successful flotation concentrate. Best result for pre-concentration of sub-samples was found ...
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diameter column flotation) The rougher apatite flotation tests were carried out in a laboratory column with an internal diameter of 3 inches, a height of 2.0 m, and an effective volume of 6.8 L, consisting of three adjustable modules. The pulp with 35%-36% solids by weight was conditioned in four flotation …
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Bacteria Impact on Flotation of Apatite from Ore Having experiments, based on pure differences of minerals gave rise to passing on to flotation tests, 4 based on base ores, processed at the mill.
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Mining Solutions Material and Methods 11 Flotation tests performance were based on the P2O5 content and apatite recovery by spectrophotometry at 420 nm. The results of the two-level factorial experiment were treated in Minitab to verify effects and optimize process conditions. Test Parameters pH (PP) Collector dosage (g/t) (CD) Saponification (%) (SD) -1 9,5 300 45 1 11,5 400 55
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and apatite content were determined foreach sample. Inthedetermination oftheeffectofparticle sizeonthe rateofflotation, theconcentrate samples weregraded by sizeandeachsizeclasswasassayed forapatite. Abatch flotation cellthat wasidentical tothecellsin the pilot plant was used forthe batch flotation tests
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Flotation of calcite and apatite Flotation results obtained for calcite and apatite with oleate are given in Figs. 5 and 6. Calcite shows a sharp drop in flotation between pH 8 and 10; while elsewhere in the tested pH range, flotation is more than 95%. The flo-tation of apatite, on the other hand, is nearly between pH 6 and 12, with
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Micro-flotation tests were performed to reveal the selective depression of apatite by NaPP. In addition, the underlying mechanism was investigated through zeta potential and contact angle measurements, and XPS analyses. 2. Experiments 2.1. Materials The sample of apatite was obtained from Yunnan Phosphate Chemical Group Co., Ltd. located in ...
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The open circuit batch flotation test work is generally the first step in an investigation. While the conditions employed in batch testing should be readily transferable to plant-scale operations, this is generally less important than the use of a procedure that can be closely duplicated. An important rule in flotation process development is to aim for simplicity. A process with unnecessary ...
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The effects of Ca2+, Mg2+, Al3+, and Fe3+ on the flotation behaviors of apatite, dolomite and quartz were investigated through a micro-flotation test, and the influence of calcium ions on the flotation of these minerals was further elucidated by solution chemistry study, zeta potential measurement, and X-ray photoelectron spectroscopy (XPS) analyses.
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