Quantifying accidental activation. Part I. Cu ion production |
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| Affiliation: | 1. Environmental and Life Sciences Program, Trent University, Peterborough, ON K9L 0G2, Canada;2. School of the Environment, Trent University, Peterborough, ON K9L 0G2, Canada;1. College of Resources and Civil Engineering, Northeastern University, Shenyang, Liaoning, PR China;2. Key Laboratory of Solid Waste Treatment and Resource Recycle Ministry of Education, Southwest University of Science and Technology, Mianyang, Sichuan, PR China;3. Key Laboratory of Vanadium-titanium Magnetite Comprehensive Utilization, Ministry of Land and Resources, Institute of Multipurpose Utilization of Mineral Resources, CAGS, Chengdu, Sichuan, PR China |
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| Abstract: | Accidental activation is a function of metal ion production, transfer and resultant flotation response. In Part I copper ion production from chalcocite and chalcopyrite was determined for single minerals and ores as a function of particle size using an EDTA extraction method. Copper ion production was inversely proportional to particle size. For single minerals, chalcocite produced about 50 times more Cu than chalcopyrite. The chalcopyrite-bearing ores gave higher copper ion production than for mineral alone, ascribed to galvanic interaction. A model was derived to predict surface concentration of Cu. The Cu production is compared to the resultant flotation effect in Part II. |
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