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The use of bubble loads to interpret transport phenomena at the pulp-froth interface in a flotation column
Thesis (PhD)--Stellenbosch University, 1994.
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| Format: | Thesis |
| Language: | en_ZA |
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Stellenbosch : Stellenbosch University
2012
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| _version_ | 1867614108269936640 |
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| access_status_str | Open Access |
| author | Burger, Andries Jacobus |
| author2 | Van Deventer, J. S. J. |
| author_browse | Burger, Andries Jacobus Van Deventer, J. S. J. |
| author_facet | Van Deventer, J. S. J. Burger, Andries Jacobus |
| author_sort | Burger, Andries Jacobus |
| collection | Thesis |
| dc_rights_str_mv | Stellenbosch University |
| description | Thesis (PhD)--Stellenbosch University, 1994. |
| format | Thesis |
| id | oai:scholar.sun.ac.za:10019.1/58618 |
| institution | Stellenbosch University (South Africa) |
| language | en_ZA |
| last_indexed | 2026-06-10T12:46:47.817Z |
| license_str | Other — see source repository |
| provenance_str_mv | Harvested via OAI-PMH from SUNScholar — Stellenbosch University Repository |
| publishDate | 2012 |
| publishDateRange | 2012 |
| publishDateSort | 2012 |
| publisher | Stellenbosch : Stellenbosch University |
| publisherStr | Stellenbosch : Stellenbosch University |
| record_format | dspace |
| source_str | SUNScholar — Stellenbosch University Repository |
| spelling | oai:scholar.sun.ac.za:10019.1/58618 The use of bubble loads to interpret transport phenomena at the pulp-froth interface in a flotation column Burger, Andries Jacobus Van Deventer, J. S. J. Stellenbosch University. Faculty of Engineering. Dept. of Chemical Engineering. Flotation Bubbles -- Measurement Thesis (PhD)--Stellenbosch University, 1994. ENGLISH ABSTRACT: The bubble load in flotation refers to the mass of particles attached to air bubbles per volume of air, while the interstilial concentration of a species is the mass fraction of that species in the slurry between the loaded air bubbles. A calculation procedure is proposed whereby the bubble load and Interstitial concentration of different species can be estimated at different levels in the pulp phase of a pilot-scale flotation column. The model requires experimentally measured concentrations of species in the pulp (overall concentrations), the flow rates of species in the concentrate and tailings, air hold-up, the rate of aeration, the wash water rate, as well as mineralogical liberation data as input parameters. Various transport mechanisms, such as the preferential rejection of particles from bubble wakes, settling of particles, entrainment of particles, the flow of the bulk slurry and bubble transport, are incorporated in the calculation procedure. Calculated results can be used to investigate transport phenomena at the pulp-froth interface (PFI), to estimate pulp and froth recoveries, and to identify regions of high and low particle-bubble attachment in flotation columns. Doctoral 2012-08-27T11:39:03Z 2012-08-27T11:39:03Z 1994 Thesis http://hdl.handle.net/10019.1/58618 en_ZA Stellenbosch University xvii, 383 pages : illustrations application/pdf Stellenbosch : Stellenbosch University |
| spellingShingle | Flotation Bubbles -- Measurement Burger, Andries Jacobus The use of bubble loads to interpret transport phenomena at the pulp-froth interface in a flotation column |
| title | The use of bubble loads to interpret transport phenomena at the pulp-froth interface in a flotation column |
| title_full | The use of bubble loads to interpret transport phenomena at the pulp-froth interface in a flotation column |
| title_fullStr | The use of bubble loads to interpret transport phenomena at the pulp-froth interface in a flotation column |
| title_full_unstemmed | The use of bubble loads to interpret transport phenomena at the pulp-froth interface in a flotation column |
| title_short | The use of bubble loads to interpret transport phenomena at the pulp-froth interface in a flotation column |
| title_sort | use of bubble loads to interpret transport phenomena at the pulp froth interface in a flotation column |
| topic | Flotation Bubbles -- Measurement |
| url | http://hdl.handle.net/10019.1/58618 |
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