Results 21 to 30 of about 132 (97)
, 2018 Physicochemical Problems of Mineral Processing; ISSN 2084 ...
Zhuo, Chen +3 more
openaire +2 more sources
Soil-water characteristics of weathered crust elution-deposited rare earth ores
Transactions of Nonferrous Metals Society of China, 2021 Abstract The permeability of the weathered crust elution-deposited rare earth ores directly affects the efficiency of in-situ leaching. The soil-water characteristic curve (SWCC) is an important constitutive relation for calculating the permeability of ore body, which is related to many factors.
Zhong-qun GUO +5 more
openaire +1 more source
Mobilization of Tungsten in Greenstone Belts of the Archean Kaapvaal and Singhbhum Cratons
Geochemistry, Geophysics, Geosystems, Volume 24, Issue 12, December 2023., 2023 Abstract Due to the inherently fluid‐mobile nature of W, the 182W record of the early Earth may have been obscured by fluid‐induced mobilization of W. To investigate W mobilization in Archean greenstone sequences, we analyzed 182W isotope systematics and major and trace element concentrations in samples from the 3.53 Ga old Onverwacht Group of the ...
N. Messling +5 more
wiley +1 more source
Geochemistry, Geophysics, Geosystems, Volume 24, Issue 11, November 2023., 2023 Abstract The Cretaceous High Arctic Large Igneous Province (HALIP) in Canada involved extrusion of continental flood basalts (CFBs) at 130–120 Ma and 100‐95 Ma and emplacement of an extensive sill and dike network that intersected the Carboniferous to Paleogene Sverdrup Basin.
F. M. Deegan +4 more
wiley +1 more source
工程科学学报, 2021 In-situ leaching is extensively used in the mining industry to recover rare earths from weathered crust elution-deposited rare earth ore. In the leaching system, the pore structure of rare earth ore is one of the most important factors that influence the
Xun CHEN +3 more
doaj +1 more source
Cu‐Isotope Evidence for Subduction Modification of Lithospheric Mantle
Geochemistry, Geophysics, Geosystems, Volume 23, Issue 8, August 2022., 2022 Abstract Ultramafic xenoliths from southeastern Arizona, USA, provide evidence for Cu‐isotope heterogeneity in the lithospheric mantle. We report new data on Type I (Cr‐, Mg‐rich) peridotites, but also the first Cu‐isotope data for Fe‐Ti‐Al‐rich Type II pyroxenite (±amphibole) xenoliths.
Pamela D. Kempton +5 more
wiley +1 more source
Chelation-Assisted Ion-Exchange Leaching of Rare Earths from Clay Minerals
Metals, 2021 The effect of biodegradable chelating agents on the recovery of rare earth elements (REE) from clay minerals via ion-exchange leaching was investigated, with the aim of proposing a cost-effective, enhanced procedure that is environmentally benign and ...
Georgiana Moldoveanu +1 more
doaj +1 more source
International Journal of Mining Science and Technology, 2023 Both CT and Avizo software were used to explore the effect of particle gradation on the evolution characteristics of pore structure and seepage paths in weathered crust elution-deposited rare earth ores during leaching.
Defeng Liu +3 more
doaj +1 more source
, 2023 In situ leaching of weathered crust elution-deposited rare earth ore usually uses ammonium sulfate as the leaching agent, which poses challenges such as low mass transfer efficiency, high consumption of the leaching agent and long leaching periods.
Jian Feng +5 more
core +1 more source
, 2021 As an environmentally compliant hydrometallurgical process, in situ leaching is extensively used by the mining industry to recover rare earth from weathered crust elution-deposited rare earth ore.
Xun Chen +3 more
core +1 more source