Experimental Substantiation of Luminophore-Containing Compositions for Extraction of Nonluminescent Diamonds
V. A. Chanturia1, G. P. Dvoichenkova1,2, V. V. Morozov3, V. N. Yakovlev4, O. E. Koval’chuk5, Yu. A. Podkamennyi1,5
1Academician Melnikov Institute of Comprehensive Exploitation of Mineral Resources, Russian Academy of Sciences, Moscow, 111020 Russia
2Polytechnic Institute, Ammosov North-Eastern Federal University, Mirny, 678174 Russia
3National University of Science and Technology-MISIS, Moscow, 117049 Russia
4Yakutniproalmaz Institute, ALROSA, Mirny, 678174 Russia
5Research and Geology Agency, ALROSA, Mirny, 678174 Russia
Keywords: Алмазы, органический люминофор, неорганический люминофор, органоминеральные композиции, рентгенолюминесценция, спектрально-кинетические характеристики, сепарация, Diamonds, organic luminophore, inorganic luminophore, organic-mineral composition, X-ray luminescence, spectral-kinetic characteristics, separation
Abstract
The procedure is developed for modification of diamond surface by luminophore-containing organic compositions. The compositions are composed of an organic luminophore-anthracene, inorganic luminophore K-35 and cetane. Indication compositions are synthesized based on the selected luminophores and organic liquids and tested using pilot separator POLYUS-M. Spectral-kinetic characteristic of luminophopre-containing organic-mineral compositions, treated weakly luminous diamond crystals and kimberlite minerals are determined. The compositions ensuring better spectral-kinetic characteristics and higher extraction of diamonds during H-ray luminescence separation are selected.
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