Results 31 to 40 of about 3,405 (219)
The role of rainwater-borne hydrogen peroxide in the release of arsenic from arsenopyrite
, 2014 A microcosm experiment was conducted to examine the effects of hydrogen peroxide (at a concentration range of 5-50 μM) on the release of arsenic from the dissolution of arsenopyrite, a dominant arsenic-bearing mineral occurring in natural environments ...
Ma, Yingqun, Lin, Chuxia, Qin, Yanwen
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A STUDY OF THE CHEMICAL BEHAVIOR OF ARSENOPYRITE. [PDF]
Journal of the American Chemical Society, 1894 n ...
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Transactions of Nonferrous Metals Society of China, 2008 Abstract Oxidation of arsenopyrite with Acidithiobacillus ferrooxidans was studied. The electrochemical results show that arsenopyrite is firstly oxidized to As 2 S 2 at the potential of 0.2−0.3 V (vs SHE) and As 2 S 2 covers the electrode and retards the process continuously.
Tao JIANG +4 more
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Results in EngineeringArsenopyrite is an important gold-bearing sulfide mineral, and pretreatment is essential before gold extraction to maximize gold recovery. Bioleaching, with its advantages of simple operation and environmental friendliness, has received widespread ...
Baojun Yang +8 more
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Gold-arsenic sulfide mineralization of the Kayancha area, Gorny Altai
Руды и металлы, 2023 Gold-arsenic sulfide type mineralization has first been revealed for the Gorny Altai region. The mineralized zones associate with lamprophyre dikes and are controlled by steeply dipping faults transecting the Vendian-Cambrian terrigenous-carbonate ...
Kryazhev S. G. +3 more
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XRPD dataset of Arsenopyrite from Šumadija-Kopaonik ore district
, 2023 Arsenopyrite is a common sulphide mineral in numerous polymetallic Pb-Zn-(±Cu, Ag, Au, Sb, Bi, W) mineralizations of the Šumadija-Kopaonik ore district, where significant and economically significant ore deposits are located, such as world-class Trepča ...
Zavašnik, J (via Mendeley Data)
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Mal'javr – the first gold prospect in the Archean conglomerates, the Kola region
Vestnik MGTU, 2023 A new type of prospects of gold mineralization in the Kola region is considered in the paper. The Mal'javr prospect is located in the south-western flank of the Uragubsky greenstone belt in biotite gneiss – the metamorphosed sedimentary rocks with ...
Kalinin A. A. +2 more
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Mineralogy of Historic Scheelite Mine Tailings at Glenorchy, Otago, New Zealand
New Zealand Journal of Geology and Geophysics, Volume 69, Issue 2, June 2026.Otago Schist orogenic mineral deposits with scheelite and gold in the Glenorchy area are mineralogically and geochemically similar to, but structurally different from, those at the active Macraes gold mine in East Otago. Glenorchy veins were mined for scheelite up to 1970s, and an abandoned processing battery site at Glenorchy is now being managed for ...
Dave Craw +2 more
wiley +1 more source
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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Горные науки и технологии, 2016 The article focuses on the causes of refractoriness of sulfide ore stock with superdispersed gold inclusions. In order to increase gold recovery, a hypothesis about effective (peroxide) preparation of refractory raw materials in the process of leaching ...
L. V. Shumilova
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