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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Yakubailik E. K., Ganzhenko I. M., Butov P. Y., Kilin V. I.
Заглавие : Losses of magnetite iron in wet separation
Место публикации : Steel Transl.: Allerton Press Incorporation, 2016. - Vol. 46, Is. 6. - P.390-394. - ISSN 09670912 (ISSN), DOI 10.3103/S0967091216060115
Примечания : Cited References: 15
Ключевые слова (''Своб.индексиров.''): high-power magnets--iron losses--magnetic parameters--magnetite iron--tailings--wet separation
Аннотация: Samples of all the tailings from enrichment processes at the Abagur plant operated by OAO Evrazruda are studied. The tailings are subjected to magnetic and chemical analysis, and the magnetic characteristics of the products are measured. The mean magnetite iron content in the tailings was about 0.9% in 2013. Experiments confirm that the main magnetite losses are associated with small classes and their poor magnetic properties. The losses of magnetite are reduced as the separation field is increased. At the plant, 45% of the barium–ferrite magnetic systems in the PBM 90/250 separators have been replaced by a system based on neodymium–iron–boron composites, with increase in the field from 111 to 175 kA/m. Modernization of the magnetic systems in all the separators at the Abagur plant is recommended. In thickening, the installation of separators for regeneration of the suspensions, with a field of 190 kA/m, is recommended. After reconstruction, the losses of magnetite iron at the plant may be reduced to 0.45–0.55%. © 2016, Allerton Press, Inc.
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Yakubailik E. K., Balaev A. D., Ganzhenko I. M.
Заглавие : Evaluation of additional iron recovery from iron ore tailings
Место публикации : J. Min. Sci. - 2017. - Vol. 53, Is. 3. - P.559-564. - ISSN 10627391 (ISSN), DOI 10.1134/S1062739117032511
Примечания : Cited References: 12
Ключевые слова (''Своб.индексиров.''): tailings--dry centrifugal separation--wet separation--magnetic characteristics--neodymium–ferrum–boron
Аннотация: The article demonstrates feasibility of additional iron recovery from the secondary kind of mineral raw materials—dry magnetic separation tailings obtained at crushing and processing factories of Abaza and Irba and wet magnetic separation tailing produced at Abagur processing plant of Evrazruda. Dry centrifugal separation treatment of Abaza tailings–3 mm in size allowed 6.3% of middlings with Fetotal and Femag contents of 40.4 and 32%, respectively; the result of dry magnetic separation of Irba tailings -5 mm in size is 7.7% middlings with the content of Fetotal and Femag 39.9 and 30.8%. Wet magnetic separation of Abagur tailings -0.007 mm in size allowed recovery of 0.6 to 1.45% of magnetic fraction with Fetotal content of 53.3 and 51.6%, respectively, and Femag content of 49.8 and 48.5%. Fitting of modern separators with the magnetic systems based on neodymium–ferrum–boron considerably improves output of the machines (in dry centrifugal separation circuit) and enhances the yield of magnetic product in wet separation of tailings.
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