Search Results - "Fornasiero, Daniel"
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Pre-concentration of nickel in laterite ores using physical separation methods
Published in Minerals engineering (01-09-2019)“…•Ni grade in laterite ores was increased using magnetic and gravity separation.•Ni bearing serpentine were separated from heavier minerals with a Falcon…”
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2
Flotation of coarse composite particles: Effect of mineral liberation and phase distribution
Published in Advanced powder technology : the international journal of the Society of Powder Technology, Japan (01-08-2017)“…[Display omitted] •Composite particles of fine quartz (<10μm) in lead borate matrix were fabricated.•Flotation recovery of composite particles decreased with…”
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3
The evolution of surface layers formed during chalcopyrite leaching
Published in Geochimica et cosmochimica acta (01-09-2006)“…Chalcopyrite (CuFeS 2) leaching in perchloric acid (HClO 4) at an initial pH of one and a temperature of 85 °C has been examined. The rate of leaching of Cu…”
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4
Very Small Bubble Formation at the Solid−Water Interface
Published in The journal of physical chemistry. B (26-06-2003)“…The formation of very small gas bubbles (so-called “nanobubbles”) at structured solid−water interfaces has been studied using the tapping mode atomic force…”
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5
Effect of regrinding and pulp aeration on the flotation of chalcopyrite in chalcopyrite/pyrite mixtures
Published in Powder technology (01-11-2014)“…In flotation, regrinding is used to increase the liberation of value minerals, such as chalcopyrite, from gangue minerals. As a result of the significant…”
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Flotation of Chalcopyrite and Molybdenite in the Presence of Organics in Water
Published in Minerals (Basel) (01-12-2016)“…One of the water constituents that has not been investigated in great detail for potential detrimental effect on mineral flotation is organic matter. This…”
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7
The Influence of Surface Hydrophobicity on Polyacrylamide Adsorption
Published in Langmuir (21-04-2009)“…The adsorption of a modified polyacrylamide on gold surfaces coated with varying proportions of −CH3- and −OH-terminated alkanethiols (producing substrates of…”
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8
Kinetics of CO2 nanobubble formation at the solid/water interface
Published in Physical chemistry chemical physics : PCCP (01-01-2007)“…The kinetics of adsorption of CO(2) molecules dissolved in aqueous solution onto a hydrophobised silica surface were investigated using a quartz crystal…”
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9
Rheological studies of nickel oxide and quartz/hematite mixture systems
Published in Advanced powder technology : the international journal of the Society of Powder Technology, Japan (01-07-2011)“…This study aimed to investigate the rheology of two-mineral mixture systems as a function of pH and solid concentration. Single minerals (nickel oxide, quartz…”
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10
Zeta potential study of the oxidation of copper sulfide minerals
Published in Colloids and surfaces. A, Physicochemical and engineering aspects (01-01-1999)“…The zeta potential of the copper sulfide minerals, chalcocite, covellite, chalcopyrite, bornite, enargite and tennantite was measured as a function of pH and…”
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11
Colloid Stability and the Influence of Dissolved Gas
Published in The journal of physical chemistry. B (03-04-2003)“…The colloidal stability of synthetic silica spheres with clean, methylated, and dehydroxylated surfaces was studied at different concentrations of dissolved…”
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12
Effects of chemical functional groups on the polymer adsorption behavior onto titania pigment particles
Published in Journal of colloid and interface science (01-06-2004)“…The effects of functional groups on polymer adsorption onto titania pigment particles have been investigated as a function of pH and ionic strength using…”
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13
Marangoni effects in aqueous polypropylene glycol foams
Published in Journal of colloid and interface science (15-06-2005)“…The foam behavior of three polypropylene glycols covering the molecular weight range between 192 and 725 g/mol has been examined. Static and dynamic surface…”
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14
Flotation of Fine Particles: A Review
Published in Mineral processing and extractive metallurgy review (03-10-2021)“…Literature shows that flotation is highly size dependent and processing both coarse and fine size fractions is problematic. The latter is the subject of the…”
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15
Understanding the effect of sulphate in mining-process water on sulphide flotation
Published in Minerals engineering (01-05-2021)“…•Effect of sulphate was investigated on copper-molybdenum and copper-zinc ores.•Sulphate ions depress molybdenite recovery and have little effect on…”
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16
Upgrading nickel in laterite ores by flotation
Published in Minerals engineering (01-06-2018)“…•Ni grade in laterite ore was increased by 40%, at 70% recovery by flotation.•Ni bearing minerals (serpentine/goethite) were floated while siderite was…”
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17
The limits of fine particle flotation
Published in Minerals engineering (01-04-2010)“…Understanding the limits of fine particle flotation is the key to the selective separation of fine mineral particles. Fine particles have low collision…”
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18
Brownian diffusion of ultrafine particles to an air–water interface
Published in Advanced powder technology : the international journal of the Society of Powder Technology, Japan (01-05-2009)“…Fluorescent core-plain shell silica particles of different sizes were synthesized in order to investigate the interaction of ultrafine particles with bubbles…”
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19
Flotation of fine particles in the presence of combined microbubbles and conventional bubbles
Published in Minerals engineering (15-08-2020)“…•Addition of microbubbles improved the fine quartz particle flotation recovery.•The amount of collector was highly decreased when microbubbles were added.•The…”
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The role of a fatty alcohol in improving calcium minerals flotation with oleate
Published in Colloids and surfaces. A, Physicochemical and engineering aspects (05-01-2019)“…Infrared spectra of fluorapatite (Fap) with fatty alcohol (PX) or oleate (Ol) alone, and with Ol+½PX, Ol + PX or Ol+2PX mixtures at pH 9.0. [Display omitted]…”
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