Separation of Heavy Rare-Earth Elements from Light Rare-Earth ... into a sulfate mixture by mixing the powder with sulfuric acid in alumina crucibles with the acid:magnet ratios (g/g) of 2.15 (12 M), 3.2 (13.5 M), 4.3 (14.5 M), and 8.6 (16 M). The mixtures obtained were then dried in a muffle
Complete rare earth element (except Eu) and Y concentrations from the estuarine mixing zone (salinity. = 0.2 to 33) of Elimbah Creek, Queensland, Australia, were measured by quadrupole ICP-MS without preconcentration.. High sampling density in the low salinity regime along with high quality data allow accurate tracing of the development of the typical marine rare earth element …
The others are heavy rare earth elements (HREEs), including europium, terbium, dysprosium and yttrium. The latter isn't really an REE, but it's …
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The rare-earth elements, also called the rare-earth metals or (in context) rare-earth oxides, or the lanthanides (though yttrium and scandium are usually included as rare-earths) are a set of 17 nearly-indistinguishable lustrous silvery-white soft heavy metals. Scandium and yttrium are considered rare-earth elements because they tend to occur in the same ore deposits as the lanthanides and ...
The fractionation of rare earth elements (REE) was evaluated under the conditions of natural acidic water mixing with fresh and sea waters using the example of unique objects on Kunashir Island ...
The rare earth elements (REE) concentrations of the hot spring waters in the northern Beppu geothermal area were determined to clarify their behavior in the hot spring mixing J. Hot Spring Sci. system. It was clarified that REE was removed from the H-SO type hot spring waters by the mixing of them with Na-Cl type hot spring waters.
Rare Earth Elements as Indicators of Groundwater Mixing in the North China Plain: A Case Study in the Area of Hengshui City, China December 2017 Procedia Earth and Planetary Science 17:396-399
The fractionation of rare earth elements (REE) was evaluated under the conditions of natural acidic water mixing with fresh and sea waters using the example of unique objects on Kunashir Island (the Kislaya and Lesnaya rivers). It was shown that the concentrations and fractionation of REE in the water types considered are diverse and controlled by a number of factors. The concentrations of ...
Rare earth elements (REE) in sedimentary rocks are most suitable for source rock characterization. Rare earth element data of the sandstones of the unmetamorphosed Meso-Neoproterozoic Chhattisgarh and Indravati basins and the metamorphosed Paleoproterozoic Sakoli and Saucer basins of the Bastar craton have been studied for source rock characterization.
Rare earth elements is a group of elements that expands from lanthanum to lutetium, which exhibit similar physical and chemical properties.It can be found in rocks and minerals. This certified reference material (CRM) is produced and certified in accordance with ISO/IEC 17025 and ISO 17034. This CRM is traceable to SI unit kg and measured ...
Although the behavior of high field strength elements such as the rare earth elements and yttrium (REY) has been intensively studied in tropical, temperate and boreal estuaries, little is known about arctic estuarine mixing of glacial-fed river waters that are poor in organic nanoparticles and colloids (NPCs), but rich in inorganic NPCs.
Abstract. Rare earth elements (REE) in sedimentary rocks are most suitable for source rock characterization. Rare earth element data of the sandstones of the unmetamorphosed Meso-Neoproterozoic Chhattisgarh and Indravati basins and the metamorphosed Paleoproterozoic Sakoli and Saucer basins of the Bastar craton have been studied for source rock characterization.
Rare-Earth Elements Chapter O of Critical Mineral Resources of the United States—Economic and Environmental Geology and Prospects for Future Supply U.S. Department of the Interior U.S. Geological Survey Professional Paper 1802–O. 1A 8A 2A 3B 4B 5B 6B 7B 8B 11B 12B 3A 4A 5A 6A 7A
Earth Planet. Sei. Lett. 61, 68-72. REE in river and seawater mixing 149 KLINKHAMMER G. P.. ELDERFIELD H. and HUDSON A. (1983) Rare earth elements in sea water near hydrothermal vents. Nature 305, 185-188. KOLESOV G. M., ANIK.IYEV, X. X. and SARENKO V. S. (1975) On the geochemistry of rare earth elements in the waters of the Black Sea. Geochem.
Other publicly traded Chinese miners involved in the rare-earth industry include China Minmetals Rare Earth Co. (000831), Rising Nonferrous Metals Share Co. (600259) and Xiamen Tungsten Co. (600549).