Results 111 to 120 of about 18,694 (284)
Leaching of pyrite in cupric chloride solution
E3S Web of Conferences, 2016 Pyrite (FeS2) is the most abundant sulphide mineral in the world and may contain significant amounts of gold locked in its structure. Traditionally, pyrite has to be oxidized in order to break down the mineral matrix for better gold liberation by e.g ...
Elomaa Heini, Lundström Mari
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GOLDEN PYRITES FROM THE IBERIAN PYRITE BELT [PDF]
Goldschmidt2021 abstracts, 2021 G. R. Almodóvar +6 more
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Limnology and Oceanography, EarlyView.Abstract The outwelling of remineralized dissolved inorganic carbon (DIC) from the subsurface soil layer through tidal pumping has recently been noted for its importance in the blue carbon budget of mangroves. However, the age of soil organic carbon (SOC) that has been decomposed into DIC remains uncertain.
Wataru Nakamura +8 more
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ZONATION OF FORM AND COMPOSITION OF PYRITE CRYSTALS OF THE BEREZOVSKY GOLD DEPOSIT (URALS) [PDF]
Минералогия, 2018 Morphology, zonation and composition of pyrite crystals from quartz veins, beresites and listvenites of the Berezovsky gold deposit are examined. During the crystallization, the pyrite forms changed following a relatively simple scheme {111} → {111}+{100}
V.I. Popova +2 more
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Pyrite-induced hydroxyl radical formation and its effect on nucleic acids
Geochemical Transactions, 2006 Background Pyrite, the most abundant metal sulphide on Earth, is known to spontaneously form hydrogen peroxide when exposed to water. In this study the hypothesis that pyrite-induced hydrogen peroxide is transformed to hydroxyl radicals is tested ...
Leifer Nicole +6 more
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Energy GeoscienceShales 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 +8 more
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Influence of Carbon Material Properties on Slag‐Foaming Dynamics in Electric Arc Furnaces: A Review
steel research international, EarlyView.This article examines how the properties of the carbon materials affect the slag foaming, emphasizing the need for strategies to improve the effectiveness of biochar, such as pelletizing or blending with coke. Biocoke appears as promising but underexplored option for enhancing slag foaming.
Lina Kieush, Johannes Schenk
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Effect of pyrite type on the electrochemistry of chalcopyrite/pyrite interactions
Physicochemical Problems of Mineral Processing, 2018 Physicochemical Problems of Mineral Processing; ISSN 2084 ...
Forbes, Elizaveta +2 more
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Spectrum and Evolution of Systems Engineering's Guiding Propositions
Systems Engineering, EarlyView.ABSTRACT Systems engineering's practice is informed by many hundreds of guiding propositions, but their diverse nature and inconsistent categorization hinder systematic aggregation and refinement. This paper introduces a framework for understanding the origins and evolution of these propositions and proposes a unifying classification scheme. We propose
David Rousseau +2 more
wiley +1 more source
MICROTOPOCHEMISTRY AND GEOCHEMICAL FEATURES OF A PYRITE NODULE OF СARBONACEOUS SILTSTONES OF THE SAF′YANOVKA MASSIVE SULFIDE DEPOSIT (CENTRAL URAL) [PDF]
Минералогия, 2017 Pyrite nodules of carbonaceous siltstones of the Saf´yanovka nonmetamorphosed massive sulfide deposit consist of a porous poikilitic pyrite core (zone A), which is partly transformed to metacrystalline pyrite aggregates at the periphery (zones В и С ...
N.P. Safina +3 more
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