Regularization of methods of a standardless X-ray phase analysis

Yakimov, Igor S.; Dubinin, P. S.; Zaloga, A. N.; Piksina, Oksana; Yakimov, Y. I.

doi:10.1134/s0022476611020119

Cited by 2 publications

(2 citation statements)

References 6 publications

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“…The quality control of the Topas model X-ray diffraction pattern is performed by Figure 1 -QPA SMS scheme. IRS QPA is a licensed proprietary information retrieval system for XRD phase identification [3]. Topas [4] in this version of SMS is a program of the Rietveld method by Bruker (which can be replaced by other similar programs).…”

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confidence: 99%

“…Схема ПМО КРФА. ИПС РФА -лицензированная авторская информационно-поисковая система рентгенофазовой идентификации[3], Topas[4], в данной версии ПМО, программа метода Ритвельда фирмы Bruker (ее можно заменять другими аналогичными).…”

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Automated System for X-Ray Phase Analysis of the Mineral-Phase Composition of Ores and Technological Products

Yakimov,

Zaloga,

Dubinin

et al. 2023

XVI INTERNATIONAL CONFERENCE "METALLURGY OF NON-FERROUS, RARE AND NOBLE METALS" Named After Corresponding Member of the RAS Gen

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The properties of complex ores that determine the technologies for their processing are inherent in the minerals and their compositions, rather than individual chemical elements. Therefore, conventional production control based solely on the chemical composition cannot fully determine the quality and technological properties of ores and enrichment products. In recent years, the use of automated X-ray diffraction quantitative phase analysis (XRD QPA) using the full-profile Rietveld method [1] has been intensively developed in global practice for controlling the mineral composition. The essence of the method is to model the diffraction pattern of the sample measured on a diffractometer with calculated diffraction patterns of its phases, which are computed from the atomic-crystalline structures of minerals. This refines the lattice parameters, peak profile of the diffraction peaks of phases, textures, and possibly the crystal structure parameters of the main phases of the sample. This makes Rietveld QPA the most accurate of the existing methods. However, the Rietveld QPA method is effective only when the qualitative mineral composition of ores and products is known and stable, and even partial changes in samples lead to errors. This impedes the development of automation of Rietveld XRD QPA in cases of significantly variable mineral composition.

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Automated System for X-Ray Phase Analysis of the Mineral-Phase Composition of Ores and Technological Products

Yakimov,

Zaloga,

Dubinin

et al. 2023

XVI INTERNATIONAL CONFERENCE "METALLURGY OF NON-FERROUS, RARE AND NOBLE METALS" Named After Corresponding Member of the RAS Gen

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Processing the Fluorocarbon-containing Waste from Electrolytic Aluminum Production

Kulikov,

Vasyunina,

Dubova

et al. 2024

Èkol. prom. Ross.

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The characteristics of fine fluorocarbon-containing waste from aluminum production are given and the influence of changes in aluminum production technology that have occurred in recent years on the formation structure, composition and properties is analyzed. The currently proposed methods for processing these wastes are reviewed. An assessment of the method for processing fine fluorocarbon-containing waste from aluminum production was carried out on the example of coal foam flotation tailings using the method of causticization with lime milk to produce a product containing synthetic fluorite, used as a mineralizer for the preparation of straight cement. The influence of operating parameters (temperature, process time, dilution) on the completeness of causticization of raw materials has been determined. The greatest influence on the extraction of fluorine into fluorite and sodium into solution is exerted by the liquid to solid ratio (L:S), at that, the yield of fluorite reaching 220 kg per ton of supplied raw material. It has been found that the high alkalinity of the solution allows sodium hydroxide to be extracted from it and used after causticization as a gas cleaning solution.

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Regularization of methods of a standardless X-ray phase analysis

Cited by 2 publications

References 6 publications

Automated System for X-Ray Phase Analysis of the Mineral-Phase Composition of Ores and Technological Products

Automated System for X-Ray Phase Analysis of the Mineral-Phase Composition of Ores and Technological Products

Processing the Fluorocarbon-containing Waste from Electrolytic Aluminum Production

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