Results 181 to 190 of about 18,694 (284)

A Comparison of the Electrochemical Oxidative Dissolution of Pyrite and Chalcopyrite in Dilute Nitric Acid Solution

ChemistryOpen, Volume 14, Issue 5, May 2025.
This research was primarily driven by the aim to extract residual encapsulated gold in sulfidic minerals, which would require the dissolution of the mineral. The electrochemical oxidation of pyrite and chalcopyrite in 0.5 M nitric acid was investigated here, using cyclic voltammetry and electrochemical impedance spectroscopy, to see if there are any ...
Samaneh Teimouri, Johannes Herman Potgieter, Caren Billing   +2 more
wiley   +1 more source

Erratum to : Effects of Oxidation of Pyrrhotite, Pyrite and Marcasite on their Flotation Properties

, 1967

openalex   +2 more sources

Removal of iron and manganese from acidic aqueous solution by pyrite and pyrite-calcium sulfite. [PDF]

Sci Rep
Zhang X, Wang Y, Nima G, Wang Z, Huang C.   +4 more
europepmc   +1 more source

A novel design for continuous measurement of CO2 from deep remineralization of petrogenic organic carbon

Vadose Zone Journal, Volume 24, Issue 3, May/June 2025.
Abstract The oxidation of petrogenic organic carbon contributes a large CO2 flux to the atmosphere, regulating the geological carbon cycle. While few in situ fluxes have been measured in near‐surface sedimentary rocks, deep fracture‐controlled metamorphic terranes remain unexplored. Here, we present a novel design for continuous in situ measurements of
Wan‐Yin Lien, Rick Chen, Jui‐Fen Tsai, Jhen‐Nien Chen, Li‐Hung Lin, Pei‐Ling Wang   +5 more
wiley   +1 more source

The Chloridiging Volatilization of Impurity Metals in Pyrite Cinder in Combustion Gas of Heavy Oil (3rd Report)

, 1969
Yutaka HANDA
openalex   +2 more sources

Overexpression of sulfide:quinone reductase (SQR) in <i>Acidithiobacillus ferrooxidans</i> enhances sulfur, pyrite, and pyrrhotite oxidation. [PDF]

Appl Environ Microbiol
Jung H, Inaba Y, Banta S.
europepmc   +1 more source

The Anchimetamorphic Tectonic Mélange of Tempa Roccarossa (Southern Apennines, Italy): Insights on the Kinematic and Thermobaric Evolution of the Upper Miocene‐Pliocene Orogenic Wedge

Tectonics, Volume 44, Issue 5, May 2025.
Abstract Studies of tectonic mélanges provide constraints on the evolution of active plate margins. However, resolving the pressure‐temperature trajectories of these deformed rocks, which are exhumed from low‐temperature conditions, can be challenging.
S. Vitale, G. L. Cardello, F. Cavalcante, L. Fedele, P. Lanari, M. Mehmood, J. Natale, L. Peruzzo, S. Ciarcia   +8 more
wiley   +1 more source

Preparation of pyrite films by plasma-assisted sulfurization of thin iron films [PDF]

, 1990
S. Bausch, B. Sailer, H. Keppner, G. Willeke, E. Bücher, G. Frommeyer   +5 more
openalex   +1 more source

Microbial Seafloor Weathering of Hydrothermal Sulfides: Insights from an 18-Month In Situ Incubation at the Wocan-1 Hydrothermal Field. [PDF]

Biology (Basel)
Dong C, Han X, Wang Y, Liu J, Wei M.
europepmc   +1 more source

Origins and Alteration of Ediacaran Carbonates Recording the Shuram Excursion in Oman

Geochemistry, Geophysics, Geosystems, Volume 26, Issue 5, May 2025.
Abstract The Shuram excursion is the largest known negative carbon isotope excursion in Earth's history. Recognized globally, it follows the Ediacaran Gaskiers glaciation and precedes a marked increase in the diversity and complexity of the earliest macroscopic multicellular organisms in the fossil record.
Kristin D. Bergmann, Magdalena R. Osburn, Noah T. Anderson, Claire Hayhow, Julia Wilcots, Marjorie D. Cantine, Woodward W. Fischer, Magali Bonifacie   +7 more
wiley   +1 more source