BENEFICIATION PROCESSES | |
Название | Prospects of X-ray absorption separation introduction with respect to the Vostok-2 deposit tungsten ores |
Автор | Alushkin I. V., Shchipchin V. B., Leonov V. B., Shepeta Ye. D., Samatova L. A. |
Информация об авторе | Thrane Teknikk (Russia): Alushkin I. V., Specialist in Radiometric Beneficiation; info@thrane.ru
Institute of Mining Engineering, Far East Branch of RAS (Russia): Shepeta Ye. D., Ph. D. in Engineering Sciences; Senior Researcher; Elenashepeta56@mail.ru |
Реферат | A possibility in principle of low-grade –50+6 mm size scheelite ores separation by means of X-ray absorption method on TOMRA Sorting equipment is considered. As a result of the studies, it was established that preliminary separation permits to increase WO3 content in subsequent flotation processing stage feed by the factor of 4–5, removing at the process head up to 84 % of machine-processed size fractions as separation final tailings regarding WO3 grade, thus providing in total for capital and operating expenses decrease, without sacrificing of high metallurgical and economical results. It is noted, that XRT-separation performance figures are consistently reproduced with regard to different size fractions, corroborating reliability of the method and chosen separating attribute; separation of scheelite ores machine-processed size fractions by means of separator with XRT-sensor does not require any special preparation of feed material (washing, surface cleaning, etc.); feed material moisture, its color, texture, admixtures, impurities, dirt, dust, pigment, etc., do not affect feed material lumps measuring quality by XRT-method. It is shown, that «bottleneck» of the technology in question is unsorted –6+0 mm size fraction, and its yield may be decreased through separated feed material size increase, which will be the subject of further studies. |
Ключевые слова | Tungsten ore, scheelite, X-ray transmission, XRT-separation |
Библиографический список | 1. Gvozdev V. I. Rudno-magmaticheskiye sistemy skarnovykh sheelit-sulfidnykh mestorozhdeniy Vostoka Rossii (Ore-magmatic systems of skarn scheelite-sulfide deposits of Eastern Russia). Vladivostok, Dalnauka, 2010, 15 p. |
Language of full-text | русский |
Полный текст статьи | Получить |