Rare metal and rare earth - bearing mineral resources in different geological environments of India

2017 ◽  
Vol 89 (1) ◽  
pp. 113-113 ◽  
Author(s):  
A. K. Rai
Keyword(s):  
Rare Earth ◽  
Mineral Resources ◽  
Rare Metal

scholarly journals Possibilities of recovery and separation of rare earth elements

2019 ◽  
Vol 73 (1) ◽  
pp. 99
Author(s):  
Dominika Fila
Keyword(s):  
Rare Earth ◽  
Rare Earth Elements ◽  
Mineral Resources ◽  
Oil Refining ◽  
Secondary Sources ◽  
Energy Technologies ◽  
Technology Products ◽  
Low Emission ◽  
Market Situation ◽  
Critical Mineral

Rare earth metals are a group of elements widely used in high technology products. They are included in the group of critical mineral resources for the EU economy. Rare earth elements are found in computers and mobile phones, as well as in low-emission energy technologies. They are also applied in chemical processes as catalysts in the oil refining. Some of them occur even in considerable quantities in the earth's crust but not very often in the concentrations justifying the profitability of their extraction. Additionally, the constantly growing demand and the current market situation cause that alternative resources of rare earth elements recovery are sought after. Therefore, the recovery and separation methods as well as recovery from the secondary sources are becoming more and more important. The following paper presents the possibilities of recovery and separation of rare earth elements from primary and secondary sources.

Marine Authigenic Deposits Mineral - New Fields for the Development of Rare Earth Resources

2011 ◽  
Vol 291-294 ◽  
pp. 1748-1751
Author(s):  
Ying Zhang ◽  
Chang Shui Liu ◽  
Lian Feng Gao ◽  
Zhen Guo Zhang ◽  
Peng Zhang
Keyword(s):  
Rare Earth ◽  
Rare Earth Metals ◽  
Mineral Resources ◽  
Resource Depletion ◽  
Polymetallic Nodules ◽  
Growth History ◽  
Valuable Metals ◽  
The World ◽  
Development And Utilization ◽  
Rare Earth Mineral

Rare earth metals are an important strategic resource. Due to scarce reserves, and large consumer demand, it is facing the crisis of resource depletion. Marine are the largest deposits sites in the world. In the long growth history, marine autogenic sedimentary mineral, such as polymetallic nodules, crusts with large quantities, not only contain the enrichment of Mn, Fe, Co, Cu, Ni and other valuable metals, but also contain extremely rare earth elements (REE) in the crust. Thus, in the process of developing marine mineral resources, Mn, Fe, Co, Cu, Ni and other metals are used, while it is possible for the development and utilization of the associated rare earth mineral. Marine may become a new field of rare earth resources development.

scholarly journals The New Renewable Energy Consumption Policy of Rare Earth Metals to Build Indonesia's National Energy Security

2018 ◽  
Vol 68 ◽  
pp. 03008
Author(s):  
Muhamad Azhar ◽  
Solechan Solechan ◽  
Retno Saraswati ◽  
Putut Suharso ◽  
Suhartoyo Suhartoyo ◽  
...  
Keyword(s):  
Renewable Energy ◽  
Rare Earth ◽  
Energy Security ◽  
Rare Earth Metals ◽  
Rare Metal ◽  
Energy Regulation ◽  
Legal Research ◽  
Renewable Energy Consumption ◽  
New Energy ◽  
National Energy Security

This study aims to discuss the policy of using renewable energy in the form of rare metal eart as an effort to build national energy security. The research method used a legal research looking from various perspectives in social science. Law is seen as a space for the process of scientific study in order to seek truth. The use of relevant legal research wants to understand the law more thoroughly. In performing implementation analysis, using the method of Regulatory Impact Assessment (RIA) with focus on energy regulation. The results of the study show that: First, the policy of the Indonesian republic government regarding the use of new energy and renewable energy aims to prepare the carrying capacity of national energy security. This policy has not fully gone well. The policy is not supported by consistency in issuing derivative policies. Second, the use of new energy and renewable energy, especially rare earth metals as part of efforts to encourage national energy security in Indonesia is still very far from expectations. The use of rare eart metal is only around 0.7% of the use of new energy. Efforts to explore and exploit rare earth metals have not been carried out in a timely manner. Whereas the potential of rare earth metals is a strategic community and has the potential to encourage national energy security in Indonesia. Indonesia is projected to produce rare earth metals reaching 20% of the world's supply.

scholarly journals Rare Earth Elements and Other Critical Metals in Deep Seabed Mineral Deposits: Composition and Implications for Resource Potential

Minerals ◽  
2018 ◽  
Vol 9 (1) ◽  
pp. 3 ◽  
Author(s):  
Sang-Joon Pak ◽  
Inah Seo ◽  
Kyeong-Yong Lee ◽  
Kiseong Hyeong
Keyword(s):  
Rare Earth ◽  
Deep Sea ◽  
Mineral Resources ◽  
Rare Earth Oxide ◽  
Economic Feasibility ◽  
Mineral Deposits ◽  
Low Grade ◽  
Ion Adsorption ◽  
Critical Metals ◽  
Deep Sea Sediment

The critical metal contents of four types of seabed mineral resources, including a deep-sea sediment deposit, are evaluated as potential rare earth element (REE) resources. The deep-sea resources have relatively low total rare earth oxide (TREO) contents, a narrow range of TREO grades (0.049–0.185%), and show characteristics that are consistent with those of land-based ion adsorption REE deposits. The relative REO distributions of the deep-seabed resources are also consistent with those of ion adsorption REE deposits on land. REEs that are not part of a crystal lattice of host minerals within deep-sea mineral deposits are favorable for mining, as there is no requirement for crushing and/or pulverizing during ore processing. Furthermore, low concentrations of Th and U reduce the risk of adverse environmental impacts. Despite the low TREO grades of the deep-seabed mineral deposits, a significant TREO yield from polymetallic nodules and REE-bearing deep-sea sediments from the Korean tenements has been estimated (1 Mt and 8 Mt, respectively). Compared with land-based REE deposits, deep-sea mineral deposits can be considered as low-grade mineral deposits with a large tonnage. The REEs and critical metals from deep-sea mineral deposits are important by-products and co-products of the main commodities (e.g., Co and Ni), and may increase the economic feasibility of their extraction.

scholarly journals Preparation of a Novel Polystyrene-Poly(hydroxamic Acid) Copolymer and Its Adsorption Properties for Rare Earth Metal Ions

Polymers ◽  
2020 ◽  
Vol 12 (9) ◽  
pp. 1905 ◽  
Author(s):  
Xiaoyan Cao ◽  
Qing Wang ◽  
Shuai Wang ◽  
Ruilin Man
Keyword(s):  
Rare Earth ◽  
Metal Ions ◽  
Surface Area ◽  
Hydroxamic Acid ◽  
Earth Metal ◽  
Rare Metal ◽  
Rare Earth Ions ◽  
Area Measurement ◽  
Bet Surface Area ◽  
Acid Copolymer

In this study, a novel polystyrene-poly(hydroxamic acid) copolymer was synthesized as an effective adsorbent for the treatment of rare earth elements. Through the use of elemental analysis as well as FTIR, SEM, XPS, and Brunauer-Emmett-Teller (BET) surface area measurement, the synthesized polymer was found to have a specific surface area of 111.4 m2·g−1. The adsorption performances of rare metal ions were investigated under different pH levels, contact times, initial concentrations of rare earth ions, and temperatures. The adsorption equilibrium for La3+, Ce3+, and Y3+ onto a polystyrene-poly(hydroxamic acid) copolymer is described by the Langmuir model, which confirms the applicability of monolayer coverage of rare earth ions onto a polystyrene-poly(hydroxamic acid) copolymer. The amount of adsorption capacities for La3+, Ce3+, and Y3+ reached 1.27, 1.53, and 1.83 mmol·g−1 within four hours, respectively. The adsorption process was controlled by liquid film diffusion, particle diffusion, and chemical reaction simultaneously. The thermodynamic parameters, including the change of Gibbs free energy (∆G), the change of enthalpy (∆H), and the change of entropy (∆S), were determined. The results indicate that the adsorption of resins for La3+, Ce3+ and Y3+ was spontaneous and endothermic. The polymer was also used as a recyclable adsorbent by the desorption experiment.

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 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 APATITE-ALBITE METASOMATITES (ACEITES) OF THE EASTERN ALDAN-STANOVOY SHIELD

2021 ◽  
Vol 40 (5) ◽  
pp. 59-73
Author(s):  
V.E. Kirillov ◽  
Keyword(s):  
Rare Earth ◽  
Structural Control ◽  
Earth Element ◽  
Rare Metal ◽  
Igneous Rocks ◽  
Metamorphic Rocks ◽  
Intrusive Rocks ◽  
Characteristic Features ◽  
Metasomatic Zoning ◽  
Geochemical Specialization

The paper summarizes the findings of research on Riphean ore-bearing apatite-albite metasomatites (aceites) identified in metamorphic, volcanic and intrusive rocks in the eastern Aldan-Stanovoy shield. The characteristic features of lithological and structural control of aceites, their mineral and petrochemical composition, geochemical associations, ontogeny, metasomatic zoning, and geochemical specialization are outlined. Aceites in metamorphic rocks are assigned to the albite-chlorite-apatite facies and in igneous rocks to the albite-apatite facies. Apatite-albite metasomatites host mineralization of two types: uranium (in aceites after metamorphic rocks) and uranium – rare earth element – rare metal (in aceites after volcanic and intrusive rocks).

Sign in / Sign up

Export Citation Format

Share Document