Results 51 to 60 of about 4,445 (173)
Flotation characteristics of arsenopyrite
, 1982 Electrochemical methods, surface spectroscopy and flotation tests have been used to study the influence of the oxidation of arsenopyrite on its floatability with xahthate.
Vreugde, Morris Johannes Aloysius
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Kuangchan zonghe liyongArsenopyrite is a common gold-bearing mineral, and the presence of arsenic leads to difficulties in gold recovery. In this paper, the effects of leaching time, NaOH concentration, temperature and potassium permanganate concentration on the arsenic ...
Kai JIN +4 more
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Impacts of Climate Change on Groundwater Quality in the Northern Atlantic Coastal Plain: A Review
JAWRA Journal of the American Water Resources Association, Volume 62, Issue 3, June 2026.ABSTRACT This review integrates hydrogeological and geochemical processes to assess the impacts of climate change on groundwater quality in the Northern Atlantic Coastal Plain (NACP). Projected changes in air temperature, precipitation, and sea‐level rise are expected to influence groundwater recharge, discharge, storage, and seawater intrusion in ...
Zahid Aziz, Nicholas A. Procopio
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A Review of the Unintended Consequences of Biochar in Various Applications
Advanced Energy and Sustainability Research, Volume 7, Issue 5, May 2026.Biochar is widely promoted as a sustainable material for applications ranging from soil amendment to energy storage and construction materials. This review critically examines the often‐overlooked and unintended consequences of biochar, including variability in properties, safety risks, and performance limitations.
Singaravelu Vivekanandhan +14 more
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A contribution to the decrepitation study of the minerals [PDF]
Acta Montanistica Slovaca, 2000 The decrepitation activity of selected carbonate and sulphide minerals, as well as baryte was studied and it is presented in this paper. The thermal-vacuum impulse method was selected to be used for such a study within the thermal range of 25 400°C. It
Ragan Emil +5 more
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In situ single‐spot Rb/Sr cosmochronology of roedderite in the Ribbeck aubrite (asteroid 2024 BX1)
Meteoritics &Planetary Science, Volume 61, Issue 5, Page 768-781, May 2026.Abstract The mineralogy and textures of several fragments from the Ribbeck aubrite were analyzed using a combination of scanning electron microscopy, electron microprobe analysis, μRaman spectroscopy, and laser ablation inductively coupled reaction cell mass spectrometry (LA‐ICP‐MS/MS).
Christopher J. Barnes +6 more
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Mechano-chemical oxidation of arsenopyrite
, 2019 This paper presents the results from the investigation of arsenopyrite oxidation via mechano-chemical activation, using a stirred mill. Water and hydrogen peroxide were chosen as the lixiviant and oxidant, respectively, and maintained at a relatively low
Veder, Jean-Peirre +5 more
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Archaeometry, Volume 68, Issue S1, Page S38-S63, April 2026.Abstract This paper presents the first direct evidence of the slags produced during the cementation alloying process of Cu with speiss inside ceramic crucibles, thus representing Cu alloying with As in Middle Kingdom Egypt. The settlement deposits from the Middle Bronze Age were excavated on Elephantine Island, within modern Aswan.
Jiří Kmošek, Martin Odler
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The Scientific World Journal, 2002 Arsenopyrite (FeAsS) is the principal arsenic (As) mineral in mineralised mesothermal veins (typically 5,000 mg/kg As) in southeastern New Zealand. Groundwater in contact with arsenopyrite-bearing rocks has elevated As concentrations (up to 0.1 mg/l ...
D. Craw, L. Pacheco
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Литосфера, 2017 Mineral deposits in the Neoarchean greenstone belts in the Fennoscandian Shield, especially in its eastern (Russian) part, are not as numerous as in Archean belts of Canada, Australia, or Southern Africa.
A. Kalinin Arkady +4 more
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