ISSN: 1402-1544 ISBN 978-91-7439-XXX-X Se i listan och fyll i siffror där kryssen är DOCTORAL T H E SIS Recycling Process Water in Complex Sulphide Ore Flotation Department of Civil, Environmental and Natural Resources Engineering Recycling Process Water in Complex Division of Sustainable Process Engineering Flotation in Complex Sulphide Ore Water Recycling Process Ikumapayi Fatai Kolawole Sulphide Ore Flotation ISSN: 1402-1544 ISBN 978-91-7439-563-1 Leaching Luleå University of Technology 2013 Ore Flotation Tailings pond Milling Back fill sand to mine 1600 1200 800 400 Intensity Intensity (cps) 0 292 289 286 283 Binding Energy (eV) 1600 1200 800 400 Intensity Intensity (cps) 0 292 289 286 283 Binding Energy (eV) Fatai Kolawole Ikumapayi Fatai Kolawole Ikumapayi 5HF\FOLQJ3URFHVV:DWHULQ&RPSOH[ 6XOSKLGH2UH)ORWDWLRQ )DWDL.RODZROH,NXPDSD\L 0LQHUDO3URFHVVLQJ'LYLVLRQRI6XVWDLQDEOH3URFHVV(QJLQHHULQJ 'HSDUWPHQWRI&LYLO(QYLURQPHQWDODQG1DWXUDO5HVRXUFHV(QJLQHHULQJ /XOHn8QLYHUVLW\RI7HFKQRORJ\ 6(/XOHn6ZHGHQ $SULO Cover Image: Schematic picture of Boliden’s sulphide minerals processing plant (top). FTIR- DRIFT spectra of chalcopyrite in process water with different added Ca2+ ions concentration at pH 10.5 (bottom left). XPS spectra of chalcopyrite treated in solution containing 5x10-5M of potassium amylxanthate (KAX) in deionised water (bottom right, top) and in process water (bottom right, bottom). 4 Printed by Universitetstryckeriet, Luleå 2013 ISSN: 1402-1544 ISBN 978-91-7439-563-1 Luleå 2013 www.ltu.se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