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Physical beneficiation of heavy minerals – Part 1: A state of the art literature review on gravity concentration techniques [PDF]
Heliyon, 2023 The efficiency of physical separation techniques of heavy minerals usually encounters some set-backs. The reason is often not far from the inability to develop suitable mineral characterization strategies in order to comprehend/evaluate certain ...
Nnaemeka Stanislaus Nzeh +4 more
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Preferential Concentration of Particles in Forced Turbulent Flows: Effects of Gravity
Energies, 2023 The impact of gravity on the particle preferential concentration is investigated by direct numerical simulations in an Eulerian–Lagrangian framework for a large range of Stokes numbers Stη=0.01∼4. For particles with small Stokes numbers such as Stη=0.01,
Guodong Gai +4 more
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Gravity Concentration in Urban Mining Applications—A Review
Recycling, 2023 Urban mining has emerged as a concept that goes beyond conventional recycling, as it aims to tackle both the challenges of solid waste generation and management, as well as the scarcity of primary resources.
Weslei M. Ambrós
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Gravity Concentration in Artisanal Gold Mining [PDF]
Minerals (Basel, Switzerland), 2020 Worldwide there are over 43 million artisanal miners in virtually all developing countries extracting at least 30 different minerals. Gold, due to its increasing value, is the main mineral extracted by at least half of these miners. The large majority use amalgamation either as the final process to extract gold from gravity concentrates or from the ...
Marcello M Veiga, Veiga Marcello M
exaly +2 more sources
Early Postpartum Change in Lactoferrin in Bovine Colostrum During the First 12 h Postpartum and Its Relationship with On-Farm Quality Indicators [PDF]
Veterinary SciencesThis pilot study aimed to evaluate the early postpartum dynamics of lactoferrin concentration in bovine colostrum and to investigate its relationship with rapid on-farm quality indicators during the first 12 h after calving.
Elena Stancheva +4 more
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Reconstructing the sediment concentration of a giant submarine gravity flow [PDF]
Nature Communications, 2018 Giant submarine gravity flows are a key mechanism in global sediment transport, yet their properties remain enigmatic. Here, the authors reconstruct the properties of a historic giant submarine gravity flow from deposits across the seafloor.
Christopher John Stevenson +7 more
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Nonlinear Engineering, 2019 In the present paper, a weakly nonlinear stability analysis is used to analyze the effect of time-periodic concentration/gravity modulation on mass transport. We have considered an infinite horizontal fluid layer with constant appliedmagnetic flux salted
Keshri Om Prakash +2 more
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Optimizing Gold Recovery of Artisanal Mining: A Lesson Learned from Kenya
Jurnal Rekayasa Kimia & Lingkungan, 2022 The metallurgical testings to treat the Kenyan artisanal gold mining samples were performed with several processes such as gravity concentration (i.e., Knelson Concentrator and panning), flotation, and cyanidation or leaching.
Izzan Nur Aslam +3 more
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Ultra-Fine Centrifugal Concentration of Bastnaesite Ore
Metals, 2021 Historically, the ability to effectively separate carbonate gangue from bastnaesite via flotation has frequently proven to be challenging without sacrificing significant rare earth oxide (REO) grade or recovery.
Alex Norgren, Corby Anderson
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Metals, 2021 Historically, the ability to effectively separate carbonate gangue from bastnaesite via flotation has frequently proven to be challenging without sacrificing significant rare earth oxide (REO) grade or recovery.
Alex Norgren, Corby Anderson
doaj +1 more source