Results 51 to 60 of about 132 (97)

A comprehensive review on the ultrasound-enhanced leaching recovery of valuable metals: Applications, mechanisms and prospects. [PDF]

Ultrason Sonochem, 2023
Bao S, Chen B, Zhang Y, Ren L, Xin C, Ding W, Yang S, Zhang W.   +7 more
europepmc   +1 more source

Petrology of weathering materials developed on granites in Biou area, North-Cameroon: implication for rare-earth elements (REE) exploration in semi-arid regions. [PDF]

Heliyon, 2021
Sababa E, Essomba Owona LG, Temga JP, Ndjigui PD.   +3 more
europepmc   +1 more source

Polymer-based treatments to control runoff, leachate and erosion from engineered slopes at Simfer Mine, Guinea, Africa [PDF]

, 2013
It is necessary to understand the erodibility and hydrological response of mine-site slope forming materials (SFMs), because of increasing awareness of the environmental impacts of mining.
Campbell, Stephanie
core  

Removal of Ammonium Ions from Aqueous Solutions Using Weathered Halloysite. [PDF]

Materials (Basel), 2021
Leszczyński J.
europepmc   +1 more source

Tracing seawater evaporation and its role in the formation of sediment-hosted stratiform copper deposits

, 2014
This study investigates the preserved fluid contents of different generations of mineralised and unmineralised vein minerals from multiple different deposits across the Zambian Copperbelt to define the fluid physicochemical characteristics of the fluids ...
Nowecki, James Philip
core  

Influence of Humic Acid on the Swelling Inhibition of Clay Minerals and Process Optimization

Medium and heavy rare earths (REEs) are mainly from weathered crust elution-deposited rare earth ores (WREOs), where REEs are adsorbed in ionic form on the surface of clay minerals such as kaolinite, illite, halloysite, etc.
Fang Zhou, Junxia Yu, Bona Deng, Ruan Chi, Xing Gao, Ying Cheng, Dandan Zhang   +6 more
core   +1 more source

Study on the Influence Mechanism of Particle Migration on the Stability of Weathering Crust Elution-Deposited Rare Earth Ores

Minerals
Particle migration can affect the ore bodies stability of weathering crust elution-deposited rare earth ores during leaching. It may trigger geological disasters such as landslides. Therefore, direct shear tests, microstructure characterization tests, and numerical simulation tests were adopted.
Ke Xiao, Zhenyue Zhang, Defeng Liu, Wenda Guo, Zhuo Chen, Ruan Chi   +5 more
openaire   +1 more source

Oxidative elemental cycling under the low O2 Eoarchean atmosphere. [PDF]

Sci Rep, 2016
Frei R, Crowe SA, Bau M, Polat A, Fowle DA, Døssing LN.   +5 more
europepmc   +1 more source

Radioactivity and geochemical characteristics of cryoconite on the Tien Shan glacier. [PDF]

Sci Rep
Miroshnikov A, Serikov A, Kokarev A, Severinenko M, Lennik S, Kharkin P, Akhmetzhanova D, Krasnopyorova M, Milts O, Makarova V, Morenko V, Fedulov V, Kapitsa V, Kasatkin N, Asadulin E, Nadyarnykh G, Sakhiev S.   +16 more
europepmc   +1 more source

Ecological Imprint of Rare Earth Mining on Microbial Communities and Water Quality Across Depth and Distance Gradients in Ganzhou, China. [PDF]

Microorganisms
Wang Y, Shi F, Lang F, Wang G, Mao Y, Xiao Y, Yin L, He G, Liao Y.   +8 more
europepmc   +1 more source