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Dephosphorization of magnetite fines: surface reactions, flotation kinetics and fuzzy logic application
Luleå tekniska universitet.
1998 (English)Doctoral thesis, comprehensive summary (Other academic)
Abstract [en]

The primary objective of the research work presented in this thesis is to investigate the influence of chemical and operational variables on the apatite flotation kinetics and to establish a suitable model using traditional method and fuzzy logic. The thesis consists of three parts, i.e., surface reactions, flotation kinetics and fuzzy logic application. In the thesis, the kinetic parameters of a modified first-order model with fast and slow-floating components were utilized in judging the influence of reagent dosages on flotation performance. The optimum flotation conditions were presented and a fuzzy model of general semi-batch flotation is used to predict the influence of collector and dispersant dosages on flotation responses. The simulation result shows that a developed fuzzy logic controller can reduce collector dosage consumption of the apatite flotation process while maintaining the P-MC within an acceptable limits (<0.025%P).

Place, publisher, year, edition, pages
Luleå: Luleå tekniska universitet, 1998. , 88 p.
Doctoral thesis / Luleå University of Technology 1 jan 1997 → …, ISSN 1402-1544 ; 1998:14
Research subject
Mineral Processing
URN: urn:nbn:se:ltu:diva-26409Local ID: e223b0e0-7b33-11db-8824-000ea68e967bOAI: diva2:999571
Godkänd; 1998; 20061123 (haneit)Available from: 2016-09-30 Created: 2016-09-30Bibliographically approved

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