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The Reflux Classifier is a new generation fluidized bed separator that provides efficient, high capacity fine particle separations on the basis of size or density. Two full-scale units have been ...
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During the test work the RCTM300 was fed with 30–35% (w/w) slurry of the bulk ore sample and water at a flow rate of 4.5-5 m3/h. Several relative density (RD) set-points were investigated during the test work, while the fluidizing …
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and iron recovery of 72.9+/ 0.4 % at 9 t/m2/h. A second feed with 1 % goethite and 57 % hematite was upgraded from 41 % to 66.3+/ 0.4 % iron at an iron recovery of 84.7+/ 0.5 % at 10 t/m2/h. (The grade of pure hematite is 69.9 % iron). It was essential to run the Reflux Classifier at a sufficient volumetric rate to
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It was observed that the cut-point achieved for this target material was RD 1.60 with an Ep value of 0.07. Apart from coal, the reflux classifier also found applications in iron ore, chromite ...
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The 2021 Iron Ore Conference was the ninth in the very successful international Iron Ore Conference series jointly hosted by AusIMM and CSIRO. These conferences are held every two years and cover the latest technological developments in the world's iron ore industry, including ore genesis, geology, exploration, characterisation, mining, processing and …
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In an experiment on iron ores with particle sizes of less than 0.5 mm, one ... Diagram of the TARC (trapezoidal inclined channel agitated reflux classifier). 3.2. Materials ... the ore was quartz, and the original ore sample was a multi-metal mixed ore. Minerals 2023, 13, 304 5 of 12 ...
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The REFLUX™ Classifier, which consists of a lower fluidized bed system and upper system of parallel inclined channels, was fed continuously to beneficiate a dense mineral ore covering a nominal ...
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This article presents the pilot plant results in terms of recovery, selectivity and stability for both the Reflux classifier and the hydraulic classifier operated in a scavenger-cleaner stage at the Bloom Lake iron ore concentrator. Quebec Iron Ore (QIO), a subsidiary of Champion Iron Limited (Champion), completed the restart of the Bloom Lake ...
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(The grade of pure hematite is 69.9 % iron). It was essential to run the Reflux Classifier at a sufficient volumetric rate to achieve shear induced inertial lift of the coarse silica within the closely spaced inclined channels, to reject the gangue minerals from the high-grade product.
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Iron Ore 2017. Iron Ore 2017: Building Resilience, 24-26 July 2017, Perth, Australia (Perth, W.A. 24-26 July, 2017) p. 195-203 ... The paper describes the application of the method to measure the separation achieved using a REFLUX™ Classifier to obtain the corresponding feed, product and reject 'washability curves', and in turn the full ...
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A satisfactory 10 um classification efficiency of 67.89% could be obtained when the ore pulp concentration was 15%, the agitation speed was 350 r/min, and the underflow flux was 16 cm3/min.
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Abstract. The Reflux Classifier is an innovative device offering advantages in both particle size classification and gravity separation. The system is a combination of a conventional fluidised bed and sets of parallel inclined plates as used to achieve a high throughput in a lamella settler. A reflux action develops as a result of fluidised ...
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The potential of RC for the treatment of fine iron ore especially for the size range between 0.150 mm and 0.045 mm was demonstrated by Amariei et al. [10]. ... In an agitated Reflux Classifier, separating performance is closely related to the bed density and agitation condition. On the one hand, when the fluidization bed was diluted by ...
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Iron ore - Australia. A Western Australian iron ore bulk sample (nominally -1 mm +0.106 mm) was tested using an RC™300 REFLUX™ Classifier (RC™300). The material was a sample of a resource that contained a significant amount of naturally occurring (liberated) fine iron ore (-1 mm particles).
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High grade iron ore resources are becoming depleted in Brazil, with relatively low-grade ores requiring more intensive concentration to achieve a premium product. ... 90 % finer than 0.150 mm, is sent directly to the Reflux Classifier, leading immediately to a high-grade concentrate at high solids concentration. Part I describes the findings ...
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November 09, 2023. The REFLUX™ Concentrating Classifier (RCC™) builds upon the success of our original REFLUX™ Classifier (RC), by optimising bed formation and split fluidisation utilising gravity-based separation techniques to tackle the recovery challenges associated with low-grade minerals. The RCC features several design improvements ...
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In this work, the REFLUX™ Classifier fractionation produced using (i) LST (ρ f ≈ 2400 kg/ m 3) and (ii) 70 wt% glycerol and water fluidising media in a system of inclined channels with a 6 mm ...
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For Professor Galvin, who is Director of the University of Newcastle's Centre for Critical Minerals and Urban Mining, and the ARC Industrial Transformation Research Hub for Advanced Technologies for Australian …
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The Reflux Classifier is able to achieve density-based separations that closely match results from floatsink tests, for both low-density coal and high-density iron-ore separations (Walton et al ...
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Globally the major iron ore producers are Vale, Rio Tinto, BHP Billiton and Fortescue Metals. The prevailing low commodity prices ensure that only the largest and lowest cost producers survive and thus mines in China, Canada and South Africa are buckling under the pressure. From a product demand perspective, Fe ore fines make up approximately …
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The RFC joins the wider suite of REFLUX technologies along with the REFLUX Classifier, which is a hydraulic classifier that separates particles using gravity, based on a difference in density or particle size. ... but not limited to, coal, gold tailings, graphite, iron ore, copper roughing, moly cleaning – where in every case the RFC is ...
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ground-breaking Reflux Classifier, or RC2020. The Reflux Classifier was first patented by Galvin and his team in 2000, and is presently responsible for around $1.5 billion in export revenue each year.
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Although the REFLUX TM Classifier has since been applied to mineral sands, chromite, ferro chrome, manganese, potash, barite and iron ore, relatively little data have been reported in the literature.
Details@article{Rodrigues2023GravitySO, title={Gravity separation of fine itabirite iron ore using the Reflux Classifier – Part I – Investigation of continuous steady state separations across a wide range of parameters}, author={Armando Fernandes da Veiga Rodrigues and Homero Delboni Junior and Ot{'a}via Martins Silva Rodrigues and James …
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Many laboratory, pilot scale and full pant scale developments and research studies have been carried out on the Reflux Classifier TM to separate valuable minerals, such as coal and iron ore from ...
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Rana Gruber operating an iron ore mine and concentrator close to the Arctic Circle in Norway decided to order the two REFLUX™ Classifier RCTM-3000-HY-SS units following successful pilot trials.
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The iron ore feed had a head grade of 35 wt-% FeT. At a low feed solids mass flux of 1.5 t m⁻² h⁻¹, the REFLUX™ Classifier produced high-grade products at a high recovery.
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1 . Gravity separation of fine itabirite iron ore using the Reflux Classifier – Part II – Establishing the underpinning partition surface . Armando F. da V. Rodrigues1,2, Homero Delboni Junior2, James Zhou3, Kevin P. Galvin*3 . 1 Department of Mineral Processing, Iron Ore, Vale S.A., Brazil 2 Department of Mining and Petroleum Engineering, …
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PE series jaw crusher is usually used as primary crusher in quarry production lines, mineral ore crushing plants and powder making plants.
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