Assessment of the quality of the magnetic concentrates of the titanium ores at Pizhemsky deposit from the point of view of the technological mineralogy

Известия высших учебных заведений: Геология и разведка

A. B. Makeyev¹  V. P. Lyutoev² 

[1] Institute of Geology of Ore Deposits, Petrography, Mineralogy and Geochemistry RAS (IGEM RAS);Institute of Geology of the Komi Science Center of the Ural Branch RAS (IG KOMI SC UB RAS);

关键词: pizhemsky titanium deposit;    gravity concentrates;    mossbauer spectroscopy;    infrared (ir) absorption;    electron paramagnetic resonance (epr);    x-ray phase analysis;   

DOI  :  10.32454/0016-7762-2019-3-31-42

来源: DOAJ

【 摘 要 】

Four magnetic fractions of small classes concentrates (0,05—0,125 mm) of a representative technological sample have been separated from titanium-bearing medium thickness sandstones of Malorucheysky unit (Pizhemsky titanium deposit). They have been studied: general sample (T-2) and three partial (T-l a, b, c) ones obtained by gravitational separation in heavy liquid in three density intervals (3,3—3,5; 3,5—3,7; 3,7—3,9 g/cm3). It has been demonstrated that the magnetic fraction of the small productive classes consists mainly of pseudorutil, ilmenite, siderite (ironstone) and garnet. The phase composition of iron-titanium phases has been reliably established by the means of normative recalculation of chemical analysis data, as well as methods of Mossbauer spectroscopy, infrared (IR) absorption and electron paramagnetic resonance (EPR). The ratio of the pseudorutile, ilmenite, siderite and associated rare earth minerals monazite-kularite and zircon accumulated in the respective gravity classes, has been computed . It has been recommended to use the methods of recovery of the concentrates (extraction of zircon and monazite) before the operation of desilication, as well as their purification from siderite.

【 授权许可】

Unknown