Research Institute of Comprehensive Exploitation of Mineral Resources, Russian Academy of Sciences, Moscow, Russia

I. V. Shadrunova, Dr. Eng., Prof., Head of the Mining Ecology Dept., e-mail: shadrunova_@mail.ru

Nosov Magnitogorsk State Technical University, Magnitogorsk, Russia

E. Yu. Degodya, Cand. Eng., Associate Prof., Dept. of Geology, Mine Surveying and Mineral Processing, e-mail: magur@mail.ru
I. A. Grishin, Cand. Eng., Associate Prof., Head of the Dept. of Geology, Mine Surveying and Mineral Processing, e-mail: Email: igorgri@mail.ru
I. A. Pytalev, Dr. Eng., Prof., Director of the Institute of Mining and Transport, e-mail: vehicle@list.ru

The article shows the possibilities, prerequisites and technological feasibility of using radiometric methods of separation and analysis for preliminary enrichment and continuous control of the flux raw material processing process. Fluorite and magnesite ores are widely used as fluxes in metallurgical production. Research has established that they have a favorable contrast in the content of valuable components in lumps and this is a necessary condition for the use of preliminary enrichment technology based on machine X-ray radiometric separation. It is determined that the X-ray absorption separation method seems to be universal for beneficiation of fluorite and magnesite ores with different nature and size of dissemination of useful and rock minerals and the content of the valuable component in the original ore, since it is penetrating and allows you to recognize hidden mineralization in the volume of the entire piece. To assess the applicability of continuous analytical control by the X-ray fluorescence analysis method, magnesite screening samples of -8.0+0.0 mm in size were examined. Based on the data obtained, it can be concluded that continuous analysis using the X-ray fluorescence analysis method is quite effective, the analysis error was 0.4 % (abs).

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