2005
DOI: 10.1016/j.ces.2005.02.018
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Determination of the collision frequency between bubbles and particles in flotation

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Cited by 40 publications
(22 citation statements)
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“…Similar expressions were obtained in [12]: For the case of a completely unretarded (mobile) bubble surface:…”
Section: Review Of the Literaturesupporting
confidence: 71%
“…Similar expressions were obtained in [12]: For the case of a completely unretarded (mobile) bubble surface:…”
Section: Review Of the Literaturesupporting
confidence: 71%
“…[3][4][5][6] The other approach focuses on the simplified system of one or few particles interacting with a single bubble. [7][8][9][10][11][12][13][14] The modeling of the flotation process is based on three elementary microprocesses, namely, the bubble-particle encounter collision, [15][16][17][18][19][20][21] the subsequent attachment, [19,[22][23][24][25] and the detachment. [17,26,27] The aim of the modeling of the flotation at this microprocess scale is to predict the global efficiency probability that can be used to size full plants.…”
Section: Introductionmentioning
confidence: 99%
“…True recovery by flotation as a function of particle size indicated that minimum point (12%) was found at about 3-5 μm, despite of particles were hydrophobized and high value of Sb (then, high probability of collision). According to another study, monodisperse sílica spheres with 1 mm (dp), hydrophobized or not, had the same low true flotation (10-25% A captura de uma partícula por uma bolha de ar ascendente é geralmente modelada como composta de três etapas consecutivas: (a) colisão entre a partícula e a bolha, (b) união (attachment) da partícula com a bolha e (c) ascensão do agregado bolha-partícula e sua respectiva estabilidade (Dai et al, 1998;Dai et al, 2000;Ralston et al, 2002;Sarrot et al, 2005). Desta forma, a eficiência de captura (E cap ) é dada pelo produto das respectivas eficiências das três etapas, expresso na Equação 1 (Dai et al, 1998;Dai et al, 2000):…”
Section: Ultrafine Particle Flotation: State Of the Art And Technicalunclassified