Results 261 to 270 of about 4,276 (298)

Experimental Studies on the Kinetics of Flotation

1992
Dissolved-air flotation (DAF) is a combination of several physical and chemical unit processes and operations. This study is focused on the phenomena in the flotation tank and especially on the formation and rising of air-bubble floc agglomerates (called agglomerates only).
J. Heinänen, P. Jokela, J. Peltokangas
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Some comments on flotation kinetics

Chemical Engineering Science, 1987
Etude theorique.
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Distributed flotation kinetics models – A new implementation approach for coal flotation

Minerals Engineering, 2014
Abstract 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, Graham O’Brien, Priyanthi Hapugoda, Bruce Firth   +3 more
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ABILITY OF KINETIC FLOTATION MODELS TO SIMULATE INTERACTIONS BETWEEN GRINDING AND FLOTATION

Canadian Metallurgical Quarterly, 2005
Pour 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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Bubble spreading kinetics and mineral flotation

Minerals Engineering, 1994
The 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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A kinetic model for batch coal flotation

Minerals Engineering, 1989
Abstract Experiments were carried out in a batch flotation cell using four coals at different levels of variables. From the results of these experiments, it is verified that the recoveries of non-ash and ash material from any size fraction follow first order kinetics given by the equation: R = R −8 (1 − e − kt ) It has ...
T.C. Rao, B. Govindarajan, M. Vanangamudi   +2 more
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In-line static mixer rapid flotation system for improved flotation kinetics

Mining, Metallurgy & Exploration, 1993
The US Bureau of Mines investigated rapid froth flotation through more efficient bubble-particle collisions that improved the overall flotation kinetics. An in-line static mixer efficiently mixed the bubbles, water and ore, selectively attaching these bubbles to the hydrophobic mineral’s surface.
G. D. Hood, C. E. Jordan
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Flotation Kinetics

Mineral Processing and Extractive Metallurgy Review, 1989
N. AHMED, G. J. JAMESON
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Influence of flotation cell hydrodynamics on the flotation kinetics and scale up of flotation recovery

2012
Flotation is a physicochemical process and its success is governed by a number of factors; including the ore mineral association and particle size distribution, the pulp chemistry, as well as the hydrodynamics and gas dispersion of flotation machines. Due to the interactions occurring, it is difficult to characterize the effect of a specific factor and
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A kinetic study of reagent flotation to improve the flotation contrast of sulphide minerals

Tsvetnye Metally, 2023
V. A. Ignatkina, A. A. Kayumov, N. D. Yergesheva, P. A. Chernova   +3 more
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