Dephosphorization of magnetite fines: surface reactions, flotation kinetics and fuzzy logic application
1998 (English)Doctoral thesis, comprehensive summary (Other academic)
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
IdentifiersURN: urn:nbn:se:ltu:diva-26409Local ID: e223b0e0-7b33-11db-8824-000ea68e967bOAI: oai:DiVA.org:ltu-26409DiVA: diva2:999571
Godkänd; 1998; 20061123 (haneit)2016-09-302016-09-30Bibliographically approved