Spectroscopy in process mineralogy. The Pizhemskoye deposit titanium ores concentrates mineral composition

Makeev, A. B.; Lyutoev, V. P.

doi:10.17580/or.2015.05.06

Cited by 5 publications

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“…Particular importance is attached to research in which ilmenite-leucoxene sandstones are considered as promising sources of a number of minerals (Fe, Au, rare, including rare earths, high-purity quartz, etc.) [12,21,22], as well as expanding the list of industrial products based on natural titanium raw materials [23][24][25], new ideas in the field of their evaluation, considering granulometry, presence of mineral admixtures, and phase transformations under conditions of extreme impacts [26,27].…”

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“…In order to form the optimal cost-benefit ratio in the development of ilmenite-leucoxene sandstones, modern technologies for complex processing are being developed to obtain high-quality titanium raw materials and extract highly pure quartz, rare, including rare earth elements, with minimizing the loss of useful components [25,38]. The chemical composition of rocks, including rare earth metals, is described in more detail in [22], including a generalizing work [6].…”

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Technological mineralogy: development of a comprehensive assessment of titanium ores (exemplified by the Pizhemskoye deposit)

Kotova

Ожогина

Ponaryadov

2022

PMI

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Technological mineralogy of titanium ores is the basis for assessing their complexity. It enables, from a unified standpoint, to trace the entire course of changes in mineral matter through operating procedures, including beneficiation, processing, and obtaining target industrial products. The study targets are Pizhemskoye ilmenite-leucoxene sandstones, which are distinguished by a complex polymineral composition. Along with the main ore components, there are other metals with different speciation (isomorphic admixture, independent mineral phases). The optimal set of mineralogical analysis methods for the predictive assessment of their further use is substantiated exemplified by titanium ores of the Pizhemskoye deposit, which are complex, noted for a variable content of iron oxides and contain rare earth metals. Examinations by X-ray phase analysis and scanning electron microscopy confirm that the main titanium phases of sandstones are pseudorutile and a polymineral aggregate, “leucoxene”. Considering the granulometric peculiarities of the magnetic and non-magnetic fractions of the gravity concentrate, the prospects of technologies for processing titanium raw materials are discussed. Along with the problems of obtaining high-quality raw materials, the transformations of mineral phases as a result of extreme impacts and their physicochemical properties as a consequence of isomorphic substitution of a part of Ti atoms with natural modifier agents (Fe and V) in the synthesis of titanium oxide nanostructures for industrial applications are considered (photocatalytic nanoreactor).

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confidence: 99%