Results 131 to 140 of about 22,212 (300)

TRACE-ELEMENTS IN PLATINUM-GROUP MINERALS STUDIED USING NUCLEAR MICROSCOPY

open access: yes, 1993
A combination of μ-PIXE and μ-RBS has been used to study concentrations and distributions of trace elements in platinum group minerals from eluvial and alluvial deposits from the western seaboard of North America.
CRIDDLE, A   +9 more
core   +1 more source

Consumer Mobile Phone Recycling Behaviour: A Systematic Review and Future Research Agenda

open access: yesJournal of Consumer Behaviour, EarlyView.
ABSTRACT Mobile phone recycling has received increasing attention from scholars and practitioners due to its environmental, social, and economic impacts. However, knowledge about consumer mobile phone (MP) recycling behaviour is fragmented, making it challenging to develop effective strategies to promote this behaviour. This study follows the Preferred
Xinru (Angie) Jiang   +4 more
wiley   +1 more source

Towards Sustainable Processing of Chromite Resources: A Review of Methods for Magnesium and Platinum-Group Metal Extraction

open access: yesInorganics
This article provides a review of modern technologies for processing chromite ores and beneficiation wastes, with a focus on the recovery of magnesium and platinum-group metals (PGMs).
Rinat Abdulvaliyev   +5 more
doaj   +1 more source

Hierarchically Engineered Transition Metal Electrode for Direct Lithium Extraction From Brine

open access: yesCarbon Energy, EarlyView.
Carbon‐modified WO3 nanoparticles deliver lithium extraction from simulated brine with Li+ capacity of 3 mmol Li g−1h−1 and 43% recovery efficiency. Reduced graphene oxide enhances charge transport and interfacial stability, while reversible W redox validated by in‐situ spectroscopy, governs lithium intercalation dynamics and structural stability ...
Ankit Kumar Tripathi   +8 more
wiley   +1 more source

Geochemistry of rare, rare earth elements and platinum group elements in rocks of Shaman ultramafic massif (Eastern Transbaikalia)

open access: yesЛитосфера, 2016
The research on petrochemistry and geochemistry of rare, rare earth and platinum group elements in the rocks Shaman massif - the largest ultramafic protrusion body in eastern branch of the Baikal-Muya ophiolite belt, performed using a different of ...
F. P. Lesnov   +2 more
doaj   +2 more sources

FIRST DISCOVERY OF PLATINUM GROUP MINERALS IN COSTA RICA

open access: yes, 2009
We report on the presence of Platinum group minerals (PGM) discovered, for the first time, in Costa Rica. The PGM were found in small chromitite bodies of the Santa Elena ophiolite.Se informa por primera vez la presencia de minerales de platino en la ...
Campos Bejarano, Lolita
core  

Raman spectroscopy of selected borate minerals of the pinakiolite group

open access: yes, 2011
The Raman spectra of a series of related minerals of the pinakiolite group of minerals have been collected and the spectra related to the mineral structure. These minerals are based upon an isolated BO33- ion. The site symmetry is reduced from D3h to C1.
Ray L. Frost, Frost, Ray L.
core   +1 more source

(NH4)2[Tc2O2(S2O7)4]: An Unexpected Technetium(V)‐Sulfate From the Reaction of (NH4)(TcO4) With SO3

open access: yesChemistry – A European Journal, EarlyView.
The reaction of the radioactive pertechnetate (99TcO4)− with the oxidizer SO3 leads to blue crystals of (NH4)2[Tc2O2(S2O7)4]. The complex dimeric [Tc2O2(S2O7)4]2− anion exhibits the technetium in the oxidation state V, showing that reduction occurs during the reaction.
Stefan Sutorius   +5 more
wiley   +1 more source

Proterozoic arc magmatism from the Padhar mafic-ultramafics in Betul Belt, Central India Tectonic Zone: Insight from petrography, bulk rock and in-situ trace element geochemistry

open access: yesGeosystems and Geoenvironment
This study presents the first identification of an Alaskan-type intrusion within the late-Proterozoic Padhar mafic-ultramafic complex (PMUC), situated along the Central Indian Tectonic Zone (CITZ).
M. Lachhana Dora   +10 more
doaj   +1 more source

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