scholarly journals Rare Earth Elements in Kuznetsk Coals: Ability to Excavate and New Functional Materials

2014 ◽  
Author(s):  
Tatyana G Cherkasova ◽  
Elizaveta V Cherkasova ◽  
Elza S Tatarinova ◽  
Alena A Bobrovnikova ◽  
Irina P. Goryunova ◽  
...  
Keyword(s):  
Rare Earth ◽  
Rare Earth Elements ◽  
Functional Materials

scholarly journals Перетворення у системах нітратних прекурсорів на підготовчих стадіях формування РЗЕ-вмісних оксидних функціональних матеріалів

2015 ◽  
pp. 132-143
Author(s):  
О. Г. Дрючко ◽  
Д. О. Стороженко ◽  
Н. В. Бунякіна ◽  
І. О. Іваницька ◽  
Д. В. Голубятніков ◽  
...  
Keyword(s):  
Physical Chemistry ◽  
Rare Earth ◽  
Rare Earth Elements ◽  
Periodic System ◽  
Chemical Interaction ◽  
Thermal Transformation ◽  
Functional Materials ◽  
Structural Components ◽  
Sensitive Characteristics ◽  
Joint Behavior

Із застосуванням комплексу фізико-хімічних мето-дів авторами вивчено природу й особливості хімічноївзаємодії, теплових перетворень (25–1000 оС) струк-турних компонентів у системі нітратів неодиму ікалію, як модельних систем нітратів рідкісноземель-них елементів і елементів ІА групи періодичної сис-теми, амонію, що нині широко використовуються усинтезах, технологічних регламентах створення наїх основі функціональних матеріалів різного призна-чення із заданим комплексом структурно-чутливиххарактеристик. Виявлена низка особливостей і зако-номірностей у їх сукупній поведінці. Using the complex of physical chemistry methods the authors studied nature and special features of chemical interaction, thermal transformation (25–1000 oC) of structural components in the system of nitrates of neodymium and potassium as model of the systems of nitrates of rare-earth elements and elements IA of the group of periodic system, ammonium, which are now widely used in the syntheses, the technological regulations of the creation of the functional materials of different designation with the assigned complex of structurally sensitive characteristics. A number of special features and regularities in their joint behavior was discovered.

PHYSICO-CHEMICAL ASPECTS OF USING REE-CONTAINING NÌTRATE SYSTEMS IN FORMING MULTICOMPONENT OXIDE FUNCTIONAL MATERIALS

2020 ◽  
Vol 7 (4) ◽  
pp. 40-62
Author(s):  
O.G. Dryuchko ◽  
◽  
D.O. Storozhenko ◽  
N.V. Bunyakina ◽  
I.O. Ivanytska ◽  
...  
Keyword(s):  
Rare Earth ◽  
Rare Earth Elements ◽  
Aqueous Solutions ◽  
Low Temperatures ◽  
Functional Materials ◽  
Inorganic Materials ◽  
Soft Chemistry ◽  
Multicomponent Oxide ◽  
Physico Chemical ◽  
Oxide Functional Materials

For obtaining the nanosized inorganic materials on oxides of transition and rare earth elements, the most promising is the use of methods of "soft chemistry" based on synthesis from aqueous or non-aqueous solutions at relatively low temperatures. Their key advantages are: the possibility of obtaining products with controlled composition and micromorphology, efficiency, environmental acceptance and so on.

Flame spectra of the rare-earth elements*

1962 ◽  
Vol 18 (4) ◽  
pp. 1127-1153
Author(s):  
V FASSEL ◽  
R CURRY ◽  
R KNISELEY
Keyword(s):  
Rare Earth ◽  
Rare Earth Elements ◽  
The Rare Earth

ESTIMATION OF THE ABUNDANCE AND DISTRIBUTION OF RARE EARTH ELEMENTS IN SOIL AROUND KADUNA REFINING AND PETROCHEMICAL COMPANY USING NUCLEAR TECHNIQUE

2020 ◽  
Vol 4 (2) ◽  
pp. 599-604
Author(s):  
Michael A. Onoja ◽  
P. H. Bukar ◽  
C. U. Omeje ◽  
A. M. Adamu
Keyword(s):  
Rare Earth ◽  
Rare Earth Elements ◽  
Nuclear Technique ◽  
Flood Plains ◽  
Economic Exploitation ◽  
Rare Elements ◽  
Petrochemical Company ◽  
The Moment ◽  
Abundance And Distribution ◽  
Natural Pattern

Instrumental neutron activation analysis (INAA) technique was used to investigate the abundance and distribution of rare earth elements (REE) in soil around Kaduna Refinery. The aim of the study is to assess the rare elements potential of Nigeria for economic exploitation. Five REEs (La, Dy, Eu, Yb, and Lu) were detected in varying concentrations ranging from a minimum of 0.6 µg/g (Lu) to a maximum of 249.0 µg/g (La). The elements existed with trends consistent with the natural pattern of REEs in soil, showing significant Eu and Dy anomalies which characterize upper plains and flood plains. The levels of REEs in soil in the study area were generally slightly above background levels, with minimal (La, Dy, and Eu), moderate (Yb), and significant (Lu) enrichments and trending: Lu ˃Yb ˃ Eu ˃ Dy ˃ La. The abundance of the REEs investigated cannot establish a potential of Nigeria for economic exploitation of the mineral, hence, rare earth project in the study area is not viable at the moment.

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