Results 41 to 50 of about 50,853 (257)

Desulphurization of coals of different ranks in the presence of slimes by reverse flotation

Energy Reports, 2019
In this paper, the flotation separation of pyrite from sub-bituminous and meta-bituminous coals in the presence of slimes was investigated. The sub-bituminous coal and the meta-bituminous coal have significant differences in their surface properties ...
You Zhou, Boris Albijanic, Bogale Tadesse, Yuling Wang, Jianguo Yang, Xiangnan Zhu   +5 more
doaj   +1 more source

THE DETERMINATION OF SULPHUR IN PYRITES. [PDF]

Journal of the American Chemical Society, 1895
n ...
openaire   +2 more sources

Pyrite formation from FeS and H2S is mediated through microbial redox activity

Proceedings of the National Academy of Sciences of the United States of America, 2019
Significance Pyrite is the most abundant iron−sulfur mineral in sediments. Over geological times, its burial controlled oxygen levels in the atmosphere and sulfate concentrations in seawater.
Joana Thiel, J. Byrne, A. Kappler, B. Schink, Michael Pester   +4 more
semanticscholar   +1 more source

ESTIMATION OF SULPHUR IN PYRITES. [PDF]

Journal of the American Chemical Society, 1895
n ...
openaire   +2 more sources

Mechanisms of Pyrite Formation Promoted by Sulfate-Reducing Bacteria in Pure Culture

Frontiers in Earth Science, 2020
Pyrite, or iron disulfide, is the most common sulfide mineral on the Earth’s surface and is widespread through the geological record. Because sulfides are mainly produced by sulfate-reducing bacteria (SRB) in modern sedimentary environments ...
A. Duverger, Jasmine S. Berg, V. Busigny, F. Guyot, S. Bernard, J. Miot   +5 more
semanticscholar   +1 more source

Which Chromium–Sulfur Compounds Exist as 2D Material?

Advanced Functional Materials, EarlyView.
2D chromium sulfides synthesized using molecular beam epitaxy on graphene. Structural characterization reveals two novel 2D materials, Cr2S3‐2D, which lacks a direct bulk counterpart, and Cr223S${\rm Cr}_{2\frac{2}{3}}{\rm S}$4‐2D, a minimum thickness version of Cr5S6. However, attempts to synthesize CrS2 are unsuccessful. Both new 2D phases are stable
Affan Safeer, Mahdi Ghorbani‐Asl, Wouter Jolie, Arkady V. Krasheninnikov, Thomas Michely, Jeison Fischer   +5 more
wiley   +1 more source

Recent Advances on Transition Metal Sulfides for Key Components of Lithium–Sulfur Batteries

Advanced Science, EarlyView.
This review systematically summarizes the latest advances in the application of transition metal sulfide catalysts in three key components of lithium–sulfur batteries (LSBs). Specifically, these catalysts can function respectively as sulfur host materials, separator coatings, and lithium anode stabilizers.
Jingxuan Chen, Tingting Sun, Junliang Liu, Hao Yu, Qisheng Zang, Tong Yuan, Fuqin Zhang   +6 more
wiley   +1 more source

Microscopic characteristics and geological significance of pyrite in shales of the Wufeng-Longmaxi formations, southeastern Chongqing, China

Energy Geoscience
Shales of the Wufeng-Longmaxi formations in the basin-margin transition zone of southeastern Chongqing, China are characterized by high organic matter content and a significant presence of pyrite development.
Xiao Cai, Wei Xia, Yuxia Liu, Shunzhou Liao, Lei Zhang, Weixue Hu, Li Liu, Wei Li, Fanwu Zeng   +8 more
doaj   +1 more source

Distinguishing Ore Deposit Type and Barren Sedimentary Pyrite Using Laser Ablation-Inductively Coupled Plasma-Mass Spectrometry Trace Element Data and Statistical Analysis of Large Data Sets

Economic Geology, 2019
Faced with ongoing depletion of near-surface ore deposits, geologists are increasingly required to explore for deep deposits or those lying beneath surface cover.
D. Gregory, M. J. Cracknell, R. Large, P. McGoldrick, S. Kuhn, V. V. Maslennikov, M. Baker, N. Fox, Ivan Belousov, Maria Figueroa, J. A. Steadman, A. Fabris, T. Lyons   +12 more
semanticscholar   +1 more source

Invisible Gold Paragenesis and Geochemistry in Pyrite from Orogenic and Sediment-Hosted Gold Deposits

Minerals, 2020
LA-ICPMS analysis of pyrite in ten gold deposits is used to determine the precise siting of invisible gold within pyrite, and thus the timing of gold introduction relative to the growth of pyrite and related orogenic events.
R. Large, V. Maslennikov
semanticscholar   +1 more source