scholarly journals Prospects for discovery of industrial concentrations of rare and rare-earth elements in the Alekseevsko-Lysogorskiy uranium-ore area of Ingulskiy megablock of the Ukrainian shield

2019 ◽  
pp. 3-10 ◽  
Author(s):  
G. A. Kalashnyk
Keyword(s):  
Rare Earth ◽  
Rare Earth Elements ◽  
General Pattern ◽  
Rare Metal ◽  
Uranium Mineralization ◽  
Raw Material ◽  
Ukrainian Shield ◽  
Material Base ◽  
Uranium Ore ◽  
Rare Metal Mineralization

The article presents the results of the assessment of the prospects for discovery of industrial concentrations of rare and rare-earth elements in the Alekseevsko-Lysogorskiy uranium-ore area of Ingulskiy megablock of the Ukrainian Shield. General pattern in the distribution of industrial objects of rare-metal and uranium mineralization in the Ingulskiy megablock of the Ukrainian Shield, caused by similar deep-seated factors of ore formation, are revealed. The complex of regional and criteria of uranium mineralization of a rare-earth-thorium-uranium formation in silicon-potassium metasomatites of the Alekseevsko-Lysogorskiy ore region is substantiated: geological-structural, mineralogical-geochemical, hydrogeological. There were presented characteristic local features of manifestations of rare-metal mineralization in this region. Based on the results of the analysis of geological and geophysical materials, it was possible to identify new uranium and complex uranium rare-metal deposits with higher mineralization parameters in optimal geological and structural conditions in the Alekseevsko-Lysogorskiy uranium ore region. There has been established the possibility of identifying within the limits of known uranium ore fields, manifestations of uranium mineralization of the rank such as deposit, ore occurrence of this uranium ore region of industrial concentrations of rare and rare-earth elements. The possibility of increasing the value of known deposits and ore occurrences of uranium of the Alekseevsko-Lysogorskiy uranium ore region due to the complexity of ore use is substantiated. According to the degree of manifestation of the complex of criteria, prospective ore and potentially ore zones are discovered for possible detection of industrial concentrations of rare metals and rare-earth elements within the Alekseevsko-Lysogorskiy ore region. There were developed recommendations for further research in the Alekseevsko-Lysogorskiy uranium ore region with the aim of improving the quality of the raw material base of rare and rare-earth elements.

scholarly journals Prospects of the Tymoshivsko-Znamianskyi potential rare-metal ore area of Inhulskyi megablock of the Ukrainian Shield

2020 ◽  
pp. 3-12
Author(s):  
G. A. Kalashnyk
Keyword(s):  
Rare Earth ◽  
Rare Earth Elements ◽  
Structural Control ◽  
Great Part ◽  
Rare Metal ◽  
Raw Material ◽  
Ukrainian Shield ◽  
Material Base ◽  
Hydrothermal Mineralization ◽  
Genetic Types

The article presents the results of the assessment of the prospects for discovery of industrial concentrations of rare and rare-earth elements in the Tymoshivsko-Znamianskyi potential rare-metal ore area of Inhulskyi megablock of the Ukrainian Shield. The results of studies of regularities of raremetalmineralization’s placement in Tymoshivsko-Znamianskyi potential ore region of the Inhulskyi megablock of the Ukrainian Shield are presented. The structural control of the great part of the detected geochemical anomalies, geochemical halos, manifestations and ore manifestations by certain systems of rupture faults and their intersection nodes is determined. The typical local features of manifestations of rare metal mineralization in small uranium deposits and large ore manifestations of this region and uranium mineralization of different genetic types, in particular hydrothermal mineralization of vein-stockwork type in mineralized fault zones are presented. According to the degree of manifestation of the complex of criteria, prospective ore and potentially ore nodes are discovered for possible detection of industrial concentrations of rare metals and rare-earth elements within the Tymoshivsko- Znamianskyi potential ore region, as well as uranium ores of various genetic types, in particular superimposed rich hydrothermal mineralization of vein-stockwork type. There were developed recommendations for further research in the Tymoshivsko-Znamianskyi potential ore region with the aim of farther development of rare and rare-earth elements raw material base.

scholarly journals Deep and crustal factors of thorium-uranium mineralization of the Golovanevskaya zone of Ukrainian Shield

2021 ◽  
Vol 43 (5) ◽  
pp. 80-94
Author(s):  
М. А. Yaroshchuk ◽  
А. V. Vaylo ◽  
А. Ye. Ganevich
Keyword(s):  
Deep Level ◽  
Granulite Facies ◽  
Rare Metal ◽  
Uranium Mineralization ◽  
Raw Material ◽  
Material Base ◽  
Uranium Ore ◽  
Regional Features ◽  
Multi Stage ◽  
Deep Fluid

The article discusses the features of the deep and crustal structure of the Golovanevskaya zone, the geochronological sequence of the main stages of its formation. The characteristic of thorium-uranium ore occurrences and deposits is given; and the main stages of their formation. The stages of successive concentrations of uranium and thorium in connection with the processes of sedimentation, volcanism, metamorphism, ultrametamorphism, and tectonic-magmatic activation are determined. The concentration of uranium and thorium was multi-stage and increased with each subsequent geological process. The deep and crustal sources of uranium and thorium, their ratio in the pre-ore main ore-generating stages of deposit formation are considered. It is shown that the formation of deposits became possible in the Proterozoic when neutral and alkaline water-potassium fluids replaced the deep acidic Archean fluids, and the formation of thorium-uranium rock complexes became possible in the crust. The totality of the data obtained is the basis for classifying the thorium-uranium mineralization as the metamorphogenic type. The presence in the Golovanevskaya zone of Lozovatsky, Yuzhny, Kalinovsky deposits, and numerous thorium-uranium ore occurrences determine this zone as promising for developing the thorium-uranium raw material base of the nuclear energy of Ukraine. Thorium-uranium mineralization is also genetically typical for the Kryvyi Rih-Inguletskaya, Orekhovo-Pavlograd interblock suture zones; detailed research is needed to determine their prospects. The confinement of thorium-uranium mineralization specifically to interblock zones is due to a combination of the following main regional features: the presence of Neoarchean thorium-uranium-bearing rock complexes; their metamorphism under conditions of granulite facies; intense ultrametamorphism; development of deep fluid-conducting faults; deep level of the erosional section, in which the products of the rare-metal and pyrite stages of thorium-uranium mineralization were exposed.

scholarly journals FEATURES OF BERILLIUM AND RARE METAL MINERALIZATION IN SYENITE OF THE PERGA DEPOSIT (UKRAINIAN SHIELD)

2020 ◽  
pp. 92-97
Author(s):  
О. Dubyna ◽  
S. Kryvdik ◽  
V. Belskyy ◽  
О. Vyshnevskyi
Keyword(s):  
Rare Earth ◽  
Fluid Phase ◽  
Rare Metal ◽  
Geochemical Characteristics ◽  
Ukrainian Shield ◽  
Alkaline Solutions ◽  
Published Data ◽  
Rare Metals ◽  
Rare Metal Mineralization ◽  
Mn Content

The results of the ore and accessory minerals study in the syenite of the Perga beryllium deposit are discussed. Phenakite and genthelvite are found among Be-bearing minerals. Genthelvite of this syenite, being compared to early published data on genthelvite of the Perga deposit, is distinguished by the highest ZnO content which is close to the theoretical maximum) due to the alkaline nature of studied rock ((Na + K)/Al = 1.09). Genthelvite occurs as later mineral to phenakite or is formed by phenakite replacement at rising the alkalinity as a result of melt differentiation. Columbite with high-Mn content, Y-silicate (keiviite-(Y)?), rare-earth fluorocarbonate (bastnesite) are also found among other minerals of rare metals. The presence of fluorite and rare-earth fluorocarbonate in association with genthelvite or phenakite may indicate that Be and REE were transported in ore-bearing fluids as complex fluorine-carbonate compounds. Considering the geochemical characteristics of rocks (meta-aluminous, subalkaline and alkaline series, deep negative Euanomalies, low Sr, Ba, elevated – HFS elements) from the Sushcano-Perga region, enrichment of these rocks with rare metals and Be are related to intensive feldspar fractionation of the primary melts and due to alkaline oversaturation, volatile and rare metals (Be, Li, REE, Y, Nb, Ta) enrichment in the residual fractions of granitic or syenitic compositions. Postmagmatic alkaline solutions enriched in F and CO32- promote of Be concentration in fluid phase with its following migration and crystallization as genthelvite.

scholarly journals Complex processing of titanium-rare metal raw material

2018 ◽  
Vol 56 ◽  
pp. 03019
Author(s):  
Mikhail Medkov ◽  
Galina Krysenko ◽  
Dantiy Epov ◽  
Pavel Sitnik ◽  
Valentin Avramenko
Keyword(s):  
Rare Earth ◽  
Rare Earth Elements ◽  
Raw Materials ◽  
Rare Metal ◽  
Raw Material ◽  
Insoluble Residue ◽  
Ammonium Hydrodifluoride ◽  
Fluoroammonium Salts ◽  
Main Components ◽  
The Rare Earth

The paper is devoted to investigation of the complex processing of titanium-rare metal raw materials with ammonium hydrodifluoride. It is stated that fluorination of the main components of the mineral raw materials with ammonium hydrodifluoride proceeds with formation of complex ammonium fluorometallates and simple fluorides. It is showed that in the process of aqueous leaching of the fluorinated mineral raw material niobium and tantalum completely pass into solution together with titanium, iron, and silicon fluoroammonium salts while all the rare-earth elements stay in the insoluble residue as complex fluorosodium salts together with CaF2. The method of separation of the fluoroammonium salts with obtaining marketable products and isolation of the rare-earth elements from the insoluble residue is offered.

scholarly journals Black shale ore of Big Karatau is a raw material source of rare and rare earth elements

2021 ◽  
pp. 105733
Author(s):  
B.K. Kenzhaliyev ◽  
T. Yu Surkovа ◽  
M.N. Azlan ◽  
S.B. Yulusov ◽  
B.M. Sukurov ◽  
...  
Keyword(s):  
Rare Earth ◽  
Rare Earth Elements ◽  
Black Shale ◽  
Raw Material ◽  
Material Source

On the issue of loparite ore as a source of rare-metal and rare-earth elements and increasing its dressing efficiency

2017 ◽  
pp. 8-14
Author(s):  
S. A. Alekseeva ◽  
◽  
E. D. Rukhlenko ◽  
S. V. Tereshchenko ◽  
D. N. Pavlishina ◽  
...  
Keyword(s):  
Rare Earth ◽  
Rare Earth Elements ◽  
Rare Metal

scholarly journals Pemantapan Proses Sintesis Ligan Dibutilditiokarbamat (DBDTK) Sebagai Pengekstrak Logam Tanah Jarang Berdasarkan Desain Eksperimen

2018 ◽  
Vol 14 (1) ◽  
pp. 195
Author(s):  
Diana Hendrati ◽  
Erianti Siska Purnamasari ◽  
Syulastri Effendi ◽  
Santhy Wyantuti
Keyword(s):  
Rare Earth ◽  
Experimental Design ◽  
Rare Earth Elements ◽  
Contrast Agent ◽  
Design Of Experiment ◽  
Large Scale ◽  
Carbon Disulphide ◽  
Raw Material ◽  
Ligand Synthesis

<p>Gadolinium (Gd) merupakan salah satu logam tanah jarang, dimana logam tanah jarang dapat diekstrak dari mineral salah satunya mineral monasit. Logam Gd biasanya digunakan sebagai bahan dasar <em>contrast agent</em> dalam dunia kesehatan. Ligan dibutilditiokarbamat mampu membentuk senyawa kompleks dengan cara mengikat logam sehingga membentuk khelat yang dapat digunakan untuk ekstraksi. Tujuan dari penelitian ini adalah memantapkan sintesis ligan dibutilditiokarbamat berdasarkan desain eksperimen dan karakterisasi kompleks antara Gd(III) dengan ligan dibutilditiokarbamat hasil sintesis. Penelitian ini diawali dengan pembuatan desain eksperimen untuk sintesis ligan dan ekstraksi Gd(III) dengan ligan, kemudian proses sintesis dan ekstraksi dilakukan sesuai dengan desain eksperimen, hasil sintesis dan ekstraksi dikarakterisasi menggunakan metode spektroskopi serta diuji kelarutannya dalam pelarut organik. Data yang diperoleh menunjukkan bahwa sintesis ligan dibutilditiokarbamat optimal pada suhu 4 °C, perbandingan dibutilamin dan karbondisulfida yaitu 1 : 3 dengan perbandingan mol ammonia terhadap dibutilamin yaitu 1 : 4, sedangkan kondisi optimal untuk ekstraksi Gd(III) dengan ligan yaitu pada pH 6, dengan perbandingan mol Gd(III) dan ligan yaitu 1 : 4 dan lama ekstraksi 60 menit. Oleh karena itu ligan dibutilditiokarbamat hasil sintesis berpotensi digunakan sebagai ekstraktan untuk ekstraksi Gd(III). Hasil prediksi ligan berdasarkan desain eksperimen yaitu sebesar 56,12% sedangkan prediksi ekstraksi Gd(III) dengan ligan hasil sintesis diperoleh sebesar 78,41%. Kesimpulan dari penelitian ini bahwa sintesis ligan dibutilditiokarbamat  berdasarkan desain eksperimen dapat dikembangkan untuk sintesis skala besar.</p><p>Gadolinium (Gd) is one of the rare-earth elements, whereas rare-earth elements can be extracted from monazite. Gd is usually used as raw material for synthesizing contrast agent<em> </em>in medicine field. Dibuthyldithiocarbamate ligand can form a complex compound with metal. This ligand will bind a metal and then forming chelate which is used for extraction. The purpose of this research is to ensure procedure of dibuthyldithiocarbamate ligand synthesis based on the design of experiment and to study the characterization of reaction result between Gd(III) and dibuthyldithiocarbamate ligand which this ligand is synthesis result. This research begins with making design of experiment for ligand synthesis and Gd(III) extraction with ligand, then perform the process of synthesis and extraction according to the design of experiment, the result of synthesis and extraction were characterized by spectroscopy method and solubility tested in organic solvent. The data was collected indicate that the optimal condition of dibuthyldithiocarbamate ligan synthesis at 4 °C (temperature), the ratio of di-n-butylamine and carbon disulphide is 1:3 with the mole ratio of ammonia to the di-n-butylamine 1:4, while the optimal conditions for gadolinium extraction with ligand at pH 6, the mol ratio of gadolinium and ligand is 1:4 and 60 minutes extraction time. Hence, dibuthyldithiocarbamate ligand can be used as extractan for extracting Gd(III). The prediction of ligand based on the experimental design is 56.12% while the prediction of Gd(III) extraction with ligand of the synthesis result is obtained equal to 78.41%. The conclusion of this research is that the synthesis of dibuthyldithiocarbamate ligand based on the experimental design can be developed for large-scale synthesis.</p>

scholarly journals Pemantapan Proses Sintesis Ligan Dibutilditiokarbamat (DBDTK) Sebagai Pengekstrak Logam Tanah Jarang Berdasarkan Desain Eksperimen

2018 ◽  
Vol 14 (2) ◽  
pp. 219
Author(s):  
Diana Hendrati ◽  
Erianti Siska Purnamasari ◽  
Syulastri Effendi ◽  
Santhy Wyantuti
Keyword(s):  
Rare Earth ◽  
Experimental Design ◽  
Rare Earth Elements ◽  
Contrast Agent ◽  
Design Of Experiment ◽  
Large Scale ◽  
Carbon Disulphide ◽  
Raw Material ◽  
Metal Extraction ◽  
Ligand Synthesis

<p>Gadolinium (Gd) merupakan salah satu logam tanah jarang, dimana logam tanah jarang dapat diekstrak dari mineral salah satunya mineral monasit. Logam Gd biasanya digunakan sebagai bahan dasar <em>contrast agent</em> dalam dunia kesehatan. Ligan dibutilditiokarbamat mampu membentuk senyawa kompleks dengan cara mengikat logam sehingga membentuk khelat yang dapat digunakan untuk ekstraksi. Tujuan dari penelitian ini adalah memantapkan sintesis ligan dibutilditiokarbamat berdasarkan desain eksperimen dan karakterisasi kompleks antara Gd(III) dengan ligan dibutilditiokarbamat hasil sintesis. Penelitian ini diawali dengan pembuatan desain eksperimen untuk sintesis ligan dan ekstraksi Gd(III) dengan ligan, kemudian proses sintesis dan ekstraksi dilakukan sesuai dengan desain eksperimen, hasil sintesis dan ekstraksi dikarakterisasi menggunakan metode spektroskopi serta diuji kelarutannya dalam pelarut organik. Data yang diperoleh menunjukkan bahwa sintesis ligan dibutilditiokarbamat optimal pada suhu 4 °C, perbandingan dibutilamin dan karbondisulfida yaitu 1 : 3 dengan perbandingan mol ammonia terhadap dibutilamin yaitu 1 : 4, sedangkan kondisi optimal untuk ekstraksi Gd(III) dengan ligan yaitu pada pH 6, dengan perbandingan mol Gd(III) dan ligan yaitu 1 : 4 dan lama ekstraksi 60 menit. Oleh karena itu ligan dibutilditiokarbamat hasil sintesis berpotensi digunakan sebagai ekstraktan untuk ekstraksi Gd(III). Hasil prediksi ligan berdasarkan desain eksperimen yaitu sebesar 56,12% sedangkan prediksi ekstraksi Gd(III) dengan ligan hasil sintesis diperoleh sebesar 78,41%.</p><p><strong>The Consolidation of Dibutyldithiocarbamate (DBDTC) Synthesis as Gadolinium Metal Extraction Based On Experimental Design. </strong>Gadolinium (Gd) is one of the rare-earth elements, whereas rare-earth elements can be extracted from monazite. Gd is usually used as raw material for synthesizing contrast agent<em> </em>in medicine field. Dibuthyldithiocarbamate ligand can form a complex compound with metal. This ligand will bind a metal and then forming chelate which is used for extraction. The purpose of this research is to ensure procedure of dibuthyldithiocarbamate ligand synthesis based on the design of experiment and to study the characterization of reaction result between Gd(III) and dibuthyldithiocarbamate ligand which this ligand is synthesis result. This research begins with making design of experiment for ligand synthesis and Gd(III) extraction with ligand, then perform the process of synthesis and extraction according to the design of experiment, the result of synthesis and extraction were characterized by spectroscopy method and solubility tested in organic solvent. The data was collected indicate that the optimal condition of dibuthyldithiocarbamate ligan synthesis at 4 °C (temperature), the ratio of di-n-butylamine and carbon disulphide is 1:3 with the mole ratio of ammonia to the di-n-butylamine 1:4, while the optimal conditions for gadolinium extraction with ligand at pH 6, the mol ratio of gadolinium and ligand is 1:4 and 60 minutes extraction time. Hence, dibuthyldithiocarbamate ligand can be used as extractan for extracting Gd(III). The prediction of ligand based on the experimental design is 56.12% while the prediction of Gd(III) extraction with ligand of the synthesis result is obtained equal to 78.41%. The conclusion of this research is that the synthesis of dibuthyldithiocarbamate ligand based on the experimental design can be developed for large-scale synthesis.</p>

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