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A Model of Froth Flotation with Drainage : Simulations and Comparison with Experiments

Betancourt, Fernando ; Bürger, Raimund LU ; Martí, María and Vásquez, Yolanda (2024) 31st IMPC-International Mineral Processing Congress, IMPC 2024 In IMPC 2024 - 31st IMPC-International Mineral Processing Congress p.2682-2690
Abstract

The model of the operation of a froth flotation column is described by a nonlinear convection–diffusion partial differential equation that incorporates the solids–flux, and drift–flux theories as well as a model of foam drainage. The resulting model is novel and contains non-standard ingredients such as discontinuous fluxes and degenerating diffusion accounting for foam drainage. It predicts the bubble and (gangue) particle volume fractions as functions of height and time. The model’s steady-state (time-independent) version defines conditions on the gas and pulp feed rates that allow for operation with a stationary froth layer. The model is validated through experiments. The agreement between experiments and model predictions is good at... (More)

The model of the operation of a froth flotation column is described by a nonlinear convection–diffusion partial differential equation that incorporates the solids–flux, and drift–flux theories as well as a model of foam drainage. The resulting model is novel and contains non-standard ingredients such as discontinuous fluxes and degenerating diffusion accounting for foam drainage. It predicts the bubble and (gangue) particle volume fractions as functions of height and time. The model’s steady-state (time-independent) version defines conditions on the gas and pulp feed rates that allow for operation with a stationary froth layer. The model is validated through experiments. The agreement between experiments and model predictions is good at the steady state condition.

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Please use this url to cite or link to this publication:
author
; ; and
organization
publishing date
type
Chapter in Book/Report/Conference proceeding
publication status
published
subject
host publication
IMPC 2024 - 31st IMPC-International Mineral Processing Congress
series title
IMPC 2024 - 31st IMPC-International Mineral Processing Congress
pages
9 pages
publisher
Society for Mining, Metallurgy and Exploration
conference name
31st IMPC-International Mineral Processing Congress, IMPC 2024
conference location
Washington, United States
conference dates
2024-09-29 - 2024-10-03
external identifiers
  • scopus:105017128155
ISBN
9780873355186
language
English
LU publication?
yes
additional info
Publisher Copyright: Copyright © 2024 Society for Mining, Metallurgy, and Exploration, Inc.
id
864e2fb1-e380-4966-a713-205135bbbd95
date added to LUP
2025-12-10 10:47:23
date last changed
2025-12-10 10:48:33
@inproceedings{864e2fb1-e380-4966-a713-205135bbbd95,
  abstract     = {{<p>The model of the operation of a froth flotation column is described by a nonlinear convection–diffusion partial differential equation that incorporates the solids–flux, and drift–flux theories as well as a model of foam drainage. The resulting model is novel and contains non-standard ingredients such as discontinuous fluxes and degenerating diffusion accounting for foam drainage. It predicts the bubble and (gangue) particle volume fractions as functions of height and time. The model’s steady-state (time-independent) version defines conditions on the gas and pulp feed rates that allow for operation with a stationary froth layer. The model is validated through experiments. The agreement between experiments and model predictions is good at the steady state condition.</p>}},
  author       = {{Betancourt, Fernando and Bürger, Raimund and Martí, María and Vásquez, Yolanda}},
  booktitle    = {{IMPC 2024 - 31st IMPC-International Mineral Processing Congress}},
  isbn         = {{9780873355186}},
  language     = {{eng}},
  pages        = {{2682--2690}},
  publisher    = {{Society for Mining, Metallurgy and Exploration}},
  series       = {{IMPC 2024 - 31st IMPC-International Mineral Processing Congress}},
  title        = {{A Model of Froth Flotation with Drainage : Simulations and Comparison with Experiments}},
  year         = {{2024}},
}