Effect of radiation on wettability and floatability of sulfide minerals |
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| Affiliation: | 1. Civil and Environmental Engineering School, University of Science & Technology Beijing, Beijing 100083, China;Mining Engineering School, Taiyuan University of Technology, Taiyuan 030024, China;2. Civil and Environmental Engineering School, University of Science & Technology Beijing, Beijing 100083, China;3. The Key Laboratory of Beam Technology and Material Modification of Ministry of Education, Beijing Normal University, Beijing 100875, China |
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| Abstract: | The feasibility for modifying the wettability and floatability of sulfide minerals by electron beam irradiation has been studied experimentally. The wettability of crystalline pyrite and floatability of some sulfide as pyrite, arsenopyrite, chalcopyrite and marmatite after irradiation were examined by flotation in a modified Hallimond tube. Experimental results show that the hydrophobicity of crystalline pyrite enhances with the increase of irradiation dose in a low dose range. And the flotation responses of sulfide minerals on irradiation dosevary with the mineral species and particle size. The floatability of minerals can be regulated by altering irradiation dose. An explanationfor the mechanism has been suggested based on the principle of radiation chemistry. |
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| Keywords: | electron beam irradiation wettability foatability sulfide mineral mechanism |
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