Physicochemical aspects of allanite flotation |
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Authors: | Adam Jordens Chris Marion Olga Kuzmina Kristian E. Waters |
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Affiliation: | Department of Mining and Materials Engineering, McGill University, 3619 University Street, H3A 0C5 Montreal, Quebec, Canada |
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Abstract: | This paper investigated the physicochemical properties of allanite, a RE-silicate, by measuring zeta potential in the absence and presence of three different flotation collectors (benzohydroxamic acid, sodium oleate and dodecylamine). This data was then verified by microflotation experiments and with bubble-particle attachment pictures. The investigated properties of allanite were compared to those of quartz, a common gangue mineral in many RE deposits. The results of this work indicated that only dodecylamine was able to achieve a selective separation of allanite and quartz. This was accomplished by lowering the dodecylamine dosage so that only quartz was recovered by microflotation. |
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Keywords: | allanite flotation surface chemistry zeta potential bubble-particle attachment rare earths |
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