Results 1 to 10 of about 16 (16)
РАЗРАБОТКА ТЯЖЕЛОГО МОДИФИКАТОРА ЧУГУНА НА ВЕРМИКУЛЯРНЫЙ ГРАФИТ
Ползуновский вестник, 2022 В работе представлены результаты разработки, исследования структуры и опытных испытаний тяжёлого модификатора чугуна на вермикулярный графит.
Эрнст Сергеевич Закиров +1 more
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Physics of Complex Systems, 2023 Методом диэлектрической спектроскопии в широком интервале частот (f = 100 Гц…105 Гц) и температур (T = 273 K…403 K). была исследована перфтосульфоновая мембран в исходном и модифицированном солью хлорида тербия (III). Модификация мембраны осуществлялась
Николай Анатольевич Лапатин +3 more
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KARELIAN GARNET AS A PROMISING SOURCE OF SCANDIUM AND RARE-EARTH METALS
Transactions of the Karelian Research Centre of the Russian Academy of Sciences, 2017 Many garnet ore deposits and occurrences, in which at least 49.2 M t of pyralspitic garnet are concentrated, are located in Karelia in a favourable geographic, mining and economic environment.
Андрей Михайлович Ручьев +1 more
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Chimica Techno Acta, 2014 In the current work it is established that the maximum intensity of a luminescence of crystalline phosphors with structure silicate-apatite of general formulae: Ca2Eu8Si6(1-x)P6xO26, Sr2Gd7.2Eu0.8Si6(1-x)P6xO26 and Ca2La8(1-x)Eu8xSi6O26 is reached at ...
A. A. Vasin, M. G. Zuev
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Biotechnical toxicity assessment system of rare earth metals compounds
Безопасность техногенных и природных систем, 2020 Introduction. Expanding the scope of application of rare-earth metal compounds that are unique in their properties increases the interest of many researchers in studying the impact of rare-earth metals and their compounds on human health and the ...
M. I. Semenova +4 more
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GARNET AND RARE-METALS RESOURCES OF THE VYSOTA-181 ORE OCCURRENCE, NORTH KARELIA
Transactions of the Karelian Research Centre of the Russian Academy of Sciences, 2019 A metamorphogenetic-metasomatic garnet ore occurrence, known as Vysota-181, is located in the Louhi District, Russian Karelia, which is part of the Arctic zone of the RussianFederation.
Александр Геннадьевич Никифоров +3 more
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Extractants for rare earth metals
Chimica Techno Acta, 2016 The separation of trivalent rare earth metals is perhaps the most serious challenge associated with a closed fuel cycle. The choice of ligand as extractant, which must be selective and efficient in conditions of high radiation environment, plays an ...
V. V. Kurysheva +2 more
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STUDY OF GRANULOMETRIC AND CHEMICAL-MINERAL COMPOSITIONS OF TOMTOR ORE DEPOSIT
RUDN Journal of Engineering Research, 2018 A study of the particle size distribution, mineral and chemical composition of the complex scandium-rare-earth-niobium Tomtor ore deposit has been conducted. It is shown that the basis of the ore is comprised of phosphates, carbonates and niobates.
Marianna Yu Malkova +1 more
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A study on kinetics of roasting of ore from tomtor field
RUDN Journal of Engineering Research, 2018 Research on kinetics of change of phosphorus, niobium, vanadium and titanium content during high-temperature roasting of ore from Tomtor field mixed with active additives: bicarbonate (NaHCO3), sodium carbonate (Na2CO3), alkalis (КОН, NaOH) is conducted.
Marianna Yu Malkova +1 more
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Известия высших учебных заведений: Нефть и газ, 2015 Currently applied welding materials do not always meet the requirements towards cold resistance and resistance to brittle failure of welding joints metal. The existing practice of welding for ensuring the equal strength of a weld joint requires execution
A. P. Baryshnikov +3 more
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