An experimental study of particle-bubble interaction and attachment in flotation

Handle URI:
http://hdl.handle.net/10754/625292
Title:
An experimental study of particle-bubble interaction and attachment in flotation
Authors:
Sanchez Yanez, Aaron ( 0000-0003-1991-9212 )
Abstract:
The particle-bubble interaction is found in industrial applications with the purpose of selective separation of materials especially in the mining industry. The separation is achieved with the use of bubbles that collect particles depending on their hydrophobicity. There are few experimental studies involving a single interaction between a bubble and a particle. The purpose of this work is to understand this interaction by the study of a single bubble interacting with a single particle. Experiments were conducted using ultra-pure water, glass particles and air bubbles. Single interactions of particles with bubbles were observed using two high speed cameras. The cameras were placed perpendicular to each other allowing to reconstruct the three-dimensional position of the particle, the bubble and the particle-bubble aggregate. A single size of particle was used varying the size for the bubbles. It was found that the attachment of a particle to a bubble depends on its degree of hydrophobicity and on the relative position of the particle and the bubble before they encounter.
Advisors:
Thoroddsen, Sigurdur T ( 0000-0001-6997-4311 )
Committee Member:
Farooq, Aamir ( 0000-0001-5296-2197 ) ; Choon, Ng Kim
KAUST Department:
Physical Sciences and Engineering (PSE) Division
Program:
Mechanical Engineering
Issue Date:
May-2017
Type:
Thesis
Appears in Collections:
Theses

Full metadata record

DC FieldValue Language
dc.contributor.advisorThoroddsen, Sigurdur Ten
dc.contributor.authorSanchez Yanez, Aaronen
dc.date.accessioned2017-08-03T18:54:23Z-
dc.date.available2017-08-03T18:54:23Z-
dc.date.issued2017-05-
dc.identifier.urihttp://hdl.handle.net/10754/625292-
dc.description.abstractThe particle-bubble interaction is found in industrial applications with the purpose of selective separation of materials especially in the mining industry. The separation is achieved with the use of bubbles that collect particles depending on their hydrophobicity. There are few experimental studies involving a single interaction between a bubble and a particle. The purpose of this work is to understand this interaction by the study of a single bubble interacting with a single particle. Experiments were conducted using ultra-pure water, glass particles and air bubbles. Single interactions of particles with bubbles were observed using two high speed cameras. The cameras were placed perpendicular to each other allowing to reconstruct the three-dimensional position of the particle, the bubble and the particle-bubble aggregate. A single size of particle was used varying the size for the bubbles. It was found that the attachment of a particle to a bubble depends on its degree of hydrophobicity and on the relative position of the particle and the bubble before they encounter.en
dc.language.isoenen
dc.subjectparticleen
dc.subjectbubbleen
dc.subjectflotationen
dc.subjectcollisionen
dc.subjectInteractionen
dc.titleAn experimental study of particle-bubble interaction and attachment in flotationen
dc.typeThesisen
dc.contributor.departmentPhysical Sciences and Engineering (PSE) Divisionen
thesis.degree.grantorKing Abdullah University of Science and Technologyen
dc.contributor.committeememberFarooq, Aamiren
dc.contributor.committeememberChoon, Ng Kimen
thesis.degree.disciplineMechanical Engineeringen
thesis.degree.nameMaster of Scienceen
dc.person.id142760en
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