Roles of metal oxidation species in the flotation of fine sulfide minerals

Ourriban, M. and Peng, Y. (2006). Roles of metal oxidation species in the flotation of fine sulfide minerals. In: Interfacial phenomena in fine particle technology : proceedings of the sixth UBC-McGill-UA International Symposium on Fundamentals in Mineral Processing. COM2006 Sixth UBC-McGill-University of Alberta Biennial Symposium on Interfacial Phenomena in Fine Particle Technology, Montréal, Canada, (). 1-4 October 2006.

Author Ourriban, M.
Peng, Y.
Title of paper Roles of metal oxidation species in the flotation of fine sulfide minerals
Conference name COM2006 Sixth UBC-McGill-University of Alberta Biennial Symposium on Interfacial Phenomena in Fine Particle Technology
Conference location Montréal, Canada
Conference dates 1-4 October 2006
Proceedings title Interfacial phenomena in fine particle technology : proceedings of the sixth UBC-McGill-UA International Symposium on Fundamentals in Mineral Processing
Place of Publication Montréal, Canada
Publisher Canadian Institute of Mining, Metallurgy and Petroleum
Publication Year 2006
Sub-type Fully published paper
ISBN 1894475690
9781894475693
Total pages era-unavailable
Language eng
Abstract/Summary In this study, flotation of fine galena, chalcopyrite and pyrite was performed after grinding with different extent of oxidation-reduction condition adjusted by grinding media. Sodium dithionite and iron ions were added in mill to simulate pulp potentials and iron oxidation species produced by grinding media, respectively. The types and quantities of the metal oxidation species on mineral surfaces were determined by EDTA extractions, while the surface electrical properties of minerals and interaction of different types of metal oxidation species were studied by zeta potential measurements. It was found that the nature and concentration of the absorbed metal oxidation species were dependent on oxidation atmosphere controlled by the iron amount of grinding media. These species interacted with each other and had an important role in determining flotation of fine galena and chalcopyrite as well as activation of fine pyrite by lead and copper.
Q-Index Code E1
Q-Index Status Provisional Code
Institutional Status Non-UQ

Document type: Conference Paper
Collection: School of Chemical Engineering Publications
 
Versions
Version Filter Type
Citation counts: Google Scholar Search Google Scholar
Created: Thu, 25 Nov 2010, 13:20:22 EST by Dr Yongjun Peng on behalf of School of Chemical Engineering