Results 21 to 30 of about 4,445 (173)
New data on the mineralogy of the gold-sulfide ore type of the Karalveem deposit, Chukotka
Руды и металлы, 2022 In this paper, we present the results of a mineralogical study of the ores of the Karalveem deposit in the northeast of Russia (Central and Ruslovy areas). Gold mineralization is characterized by two types of ores: gold-quartz-arsenopyrite (quartz veins
Ruslan A. Maksarov +4 more
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Crystals, 2023 The behaviour and stability of arsenopyrite largely depend on its crystal structure, but studies of crystallography and structural defects are scarce. For clarification, we investigated a series of natural arsenopyrite crystals from the polymetallic Pb ...
Ivana Jelić +5 more
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Flotation Depression of Arsenopyrite Using Sodium Nitrobenzoate under Alkaline Conditions
, 2021 Arsenopyrite is a common arsenic-containing mineral that is often closely associated with sulfide minerals, such as pyrite, chalcopyrite, pyrrhotite, galena, and sphalerite, and with precious metals, such as gold and silver.
Xiaoli Jin +6 more
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Role of Ag+ in the Bioleaching of Arsenopyrite by Acidithiobacillus ferrooxidans
Metals, 2020 Arsenopyrite (FeAsS) is often associated with gold, but pre-treatment is necessary prior to gold leaching, mainly due to the gold encapsulation in the matrix of FeAsS. Bio-oxidation is attractive and promising, largely due to its simplicity, low cost and
Yan Zhang, Qian Li, Xiaoliang Liu
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Microorganisms, 2023 The presented review is based on scientific microbiological articles and patents in the field of biomining valuable metals. The main attention is paid to publications of the last two decades, which illustrate some shifts in objects of interest and modern
Tatiana Abashina, Mikhail Vainshtein
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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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Sedimentation of Fine Arsenopyrite with PEI and the Flotation Significance
, 2022 The flotation of fine mineral particles is always a difficult problem. The flotation of fine arsenopyrite particles (−20 μm) in a sodium butyl xanthate (SBX) system was studied by using polyethyleneimine (PEI) as a flocculant.
Fei Li +4 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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Arsenopyrite oxidation – A review
, 2009 Arsenopyrite (FeAsS) is the most common As-bearing sulfide mineral. Under oxidising conditions, such as those in mine waste systems, it breaks down to release acids of As and S into the environment, resulting in acid mine drainage with high ...
C.L. Corkhill +3 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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