Results 31 to 40 of about 742,292 (243)

Metabolomic Analysis Reveals Contributions of Citric and Citramalic Acids to Rare Earth Bioleaching by a Paecilomyces Fungus. [PDF]

, 2019
Conventional methods for extracting rare earth elements from monazite ore require high energy inputs and produce environmentally damaging waste streams. Bioleaching offers a potentially more environmentally friendly alternative extraction process.
Alvarez-Cohen, Lisa, Brisson, Vanessa L, Zhuang, Wei-Qin   +2 more
core   +1 more source

A study of rare earth ion-adsorption clays: The speciation of rare earth elements on kaolinite at basic pH

, 2021
Synthesized rare earth ion-adsorption clays (La, Ce, Nd, Dy and Y, ~ 400 ppm each) were prepared from kaolinite at various basic pH in open-air conditions.
Xu Feng, Oznur Onel, McAlister Council-Troche, A. Noble, R. Yoon, J. R. Morris   +5 more
semanticscholar   +1 more source

Geochemical Characteristics of Limestone of Wonosari-Punung Formation, Gunungkidul Regency, Yogyakarta, Indonesia

Indonesian Journal on Geoscience, 2018
DOI: 10.17014/ijog.5.2.179-197A geochemical study was carried out to determine the geochemical characteristics of limestone in Wonosari-Punung Formation, and to suggest its depositional conditions and the source of rare earth elements.
Didik Dwi Atmoko, Anastasia Dewi Titisari, Arifudin Idrus   +2 more
doaj   +1 more source

Adsorption of rare earth elements in regolith-hosted clay deposits

Nature Communications, 2020
Global resources of heavy Rare Earth Elements (REE) are dominantly sourced from Chinese regolith-hosted ion-adsorption deposits in which the REE are inferred to be weakly adsorbed onto clay minerals.
A. Borst, Martin P. Smith, A. Finch, G. Estrade, C. Villanova-de-Benavent, Peter Nason, E. Marquis, N. Horsburgh, K. Goodenough, Cheng Xu, J. Kynický, K. Geraki   +11 more
semanticscholar   +1 more source

Standard model of the rare-earths, analyzed from the Hubbard I approximation [PDF]

, 2016
In this work we examine critically the electronic structure of the rare-earth elements by use of the so-called Hubbard I approximation. From the theoretical side all measured features of both occupied and unoccupied states are reproduced, without ...
Bergman, A., Bergqvist, L., Delin, A., Di Marco, I., Eriksson, O., Johansson, B., Katsnelson, M. I., Klautau, A. B., Kvashnin, Y. O., Lichtenstein, A. I., Locht, I. L. M., Pereiro, M., Rodrigues, D. C. M.   +12 more
core   +2 more sources

Rare Earth Elements in Wetlands

, 2016
International ...
Davranche, Mélanie, Gruau, Gérard, Dia, Aline, Bouhnik-Le Coz, Martine, Marsac, Remi, Pédrot, Mathieu, Pourret, Olivier   +6 more
openaire   +3 more sources

Growth of superconducting single-crystalline (Lu, Ca)Ba2Cu3O7-d whiskers [PDF]

, 2008
Single-crystalline (Lu, Ca)Ba2Cu3O7-d (Lu(Ca)123) whiskers have been successfully grown using the Te-doping method. X-ray diffraction patterns of Lu(Ca)123 whiskers showed sharp (0 0 l) peaks corresponding to REBa2Cu3O7-d phase (RE = rare earth elements).
Deguchi, K., Ishii, S., Kubo, Y., Mizuguchi, Y., Nagao, M., Nagasawa, M., Ogawara, S., Okutsu, T., Takano, Y., Tomioka, F., Tsuda, S., Watanabe, T., Yamaguchi, T.   +12 more
core   +1 more source

Superconductivity and Magnetism in REFeAsO1-xFx (RE=Rare Earth Elements)

, 2008
Fluoride-doped iron-based oxypnictides containing rare-earth gadolinium (GdFeAsO0.8F0.2) and co-doping with yttrium (Gd0.8Y0.2FeAsO0.8F0.2) have been prepared via conventional solid state reaction at ambient pressure.
A Goya, Chen G F, Cheng P, Chong S V, K Kadowaki, Ren Z-A, S V Chong, Shirage P M, T Mochiji, Wang C, Yang J, Zocco D A   +11 more
core   +1 more source

Time-resolved spectroscopy of the rapidly oscillating Ap star KIC 10195926 [PDF]

, 2014
We report an analysis of high time resolution spectra of the chemically peculiar Ap star KIC 10195926 obtained with the Subaru telescope. We find that the star has low overabundances of rare earth elements compared with other rapidly oscillating Ap stars.
Elkin, V. G., Kurtz, D. W., Saio, H., Shibahashi, H.   +3 more
core   +1 more source

Opportunities for plasma separation techniques in rare earth elements recycling

, 2017
Rare earth elements recycling has been proposed to alleviate supply risks and market volatility. In this context, the potential of a new recycling pathway, namely plasma mass separation, is uncovered through the example of nedodymium - iron - boron ...
Fisch, Nathaniel J., Gueroult, Renaud, Rax, Jean-Marcel   +2 more
core   +3 more sources