Improvement of the magnetic properties of iron-bearing minerals during radiation-thermal treatment |
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| Authors: | H Wang G R Bochkarev V I Rostovtsev Yu P Veigel’t S Lu |
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| Affiliation: | (1) Taiyuan University of Technology, Taiyuan, China;(2) Institute of Mining, Siberian Branch, Russian Academy of Sciences, Novosibirsk, Russia;(3) Civil and Environmental Engineering School, University of Science and Technology Beijing, Beijing, China |
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| Abstract: | The changes in the magnetic properties of sulfide and iron-bearing minerals, such as siderite, chalcopyrite, and marmatite, are investigated. The specific magnetic moment of these minerals sharply varied during radiation-thermal treatment. The X-ray diffraction method confirms the fact that the magnetic properties of these minerals intensify due to formation of ferromagnetic phase of magnetite and maghemite.Translated from Fiziko-Tekhnicheskie Problemy Razrabotki Poleznykh Iskopaemykh, No. 4, pp. 89–97, July–August, 2004.The study was conducted with financial support from the Chinese State Fund of Natural Sciences, Project No. 59-87-4002. |
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| Keywords: | radiation-thermal treatment iron-bearing minerals magnetic properties phase conversion temperature control |
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