Results 241 to 250 of about 970,819 (298)
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Effect of temperature on the kinetics of froth flotation
Minerals Engineering, 1994Abstract The kinetics of froth flotation and the three-phase contact (TPC) parameters are studied at temperatures varying from 20°C to 40°C. The material floated consists of glass spheres (ballotini) and quartz particles with various diameters. Dodecylamine hydrochloride (DDAHCl) as a collector is used.
D. Lazarov, L. Alexandrova, I. Nishkov
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, 2020
To develop a new type of coal slime collector, an ionic liquid microemulsion was prepared using 1-alkyl-3-methylimidazolium chloride ([Cnmim]Cl, where n = 12, 14, or 16) as a surfactant, n-alcohol (n-butanol, n-pentanol or n-hexanol) as a cosurfactant ...
Xianchang Zhu +5 more
semanticscholar +1 more source
To develop a new type of coal slime collector, an ionic liquid microemulsion was prepared using 1-alkyl-3-methylimidazolium chloride ([Cnmim]Cl, where n = 12, 14, or 16) as a surfactant, n-alcohol (n-butanol, n-pentanol or n-hexanol) as a cosurfactant ...
Xianchang Zhu +5 more
semanticscholar +1 more source
Kinetic considerations in the flotation of phosphate ore
Advanced Powder Technology, 2005Abstract A study was conducted on the flotation with oleic acid of sedimentary phosphates from Sierra Espuna, in the province of Murcia (Spain), also comprising an analysis of the kinetic considerations governing the operation. Two different flotation cells were used for this purpose, i.e. a Hallimond tube and a subaeration cell (Denver D-12).
F. Hernáinz, M. Calero, G. Blázquez
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Thermodynamic and Kinetic Flotation Criteria
Mineral Processing and Extractive Metallurgy Review, 1989Abstract Flotation thermodynamics and notation kinetics are discussed and compared with chemical thermodynamics and chemical kinetics. While chemical thermodynamics can predict whether a reaction will take place under a given set of conditions (temperature and pressure), and can also predict the direction in which the equilibrium will be shifted in ...
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, 2020
Dodecylamine (DDA) is a commonly used collector in the froth flotation of quartz particles. The present work for the first time studies the effect of DDA nanobubbles (NBs) on the flotation of coarse particles (−425 + 300 μm, −300 + 212 μm and − 212 + 106
Sabereh Nazari, A. Hassanzadeh
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Dodecylamine (DDA) is a commonly used collector in the froth flotation of quartz particles. The present work for the first time studies the effect of DDA nanobubbles (NBs) on the flotation of coarse particles (−425 + 300 μm, −300 + 212 μm and − 212 + 106
Sabereh Nazari, A. Hassanzadeh
semanticscholar +1 more source
Distributed flotation kinetics models – A new implementation approach for coal flotation
Minerals Engineering, 2014Abstract Composition-dependent flotation kinetic models with distributed flotation rate constants for predicting the flotation response of the various components of coal have been available for quite some time. However, the full potential of these models have not been realised because the floatability distribution of particles, a key requirement for ...
Philip Ofori +3 more
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Some comments on flotation kinetics
Chemical Engineering Science, 1987Etude theorique.
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ABILITY OF KINETIC FLOTATION MODELS TO SIMULATE INTERACTIONS BETWEEN GRINDING AND FLOTATION
Canadian Metallurgical Quarterly, 2005Pour optimiser globalement les procedes de comminution et separation, les modeles de flottation doivent etre capables de reagir de facon realiste aux changements des proprietes de la population de particules traitee. L'objectif de cette etude est d'evaluer les competences des modeles usuels de simulation de la flottation a reagir aux changements de ...
M. GIRARD, D. HODOUIN, C. BAZIN
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, 2020
Flotation kinetics is an excellent tool used to evaluate flotation performance, which is controlled by several factors, such as the particle size, bubble size, and surface property.
Xiaolong Zhang +4 more
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Flotation kinetics is an excellent tool used to evaluate flotation performance, which is controlled by several factors, such as the particle size, bubble size, and surface property.
Xiaolong Zhang +4 more
semanticscholar +1 more source
Bubble spreading kinetics and mineral flotation
Minerals Engineering, 1994The rate of movement of the three phase contact line when a gas bubble displaces an aqueous solution from silica surfaces of varying hydrophobicity has been examined. Bubbles with radii from 0.4 × 10−3 to 2.6 × 10−3 m have been studied, on surfaces hydrophobized with short chain organosilanes and long chain alcohols.
G. Newcombe, J. Ralston
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