Results 131 to 140 of about 87,639 (320)

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
doaj   +1 more source

Petrography of pyrite crystals.

, 2014
(A) SEM-BSE image of an euhedral crystal after severe HNO3 etching. Note the spongy texture in the centre and the growth bands in the outer part. (B) SEM-BSE image of floriform pyrite after severe HNO3 etching.
Marco Vecoli (588717), Sylvain Bernard (588705), Lauriss Ngombi Pemba (588701), Juan Manuel Garcia Ruiz (588711), Anne Catherine Pierson-Wickmann (588714), Gerard J. M. Versteegh (588718), Roberto Macchiarelli (141904), Christian Cesari (588708), Claude Fontaine (588709), Ernest Chi-Fru (588710), Abderrazak El Albani (588696), Alain Meunier (588703), Andrey Bekker (588721), Philippe Boulvais (588706), Idalina Moubiya Mouele (588704), Arnaud Mazurier (588713), Armelle Riboulleau (588699), Lee White (588719), Alain Trentesaux (588716), Donald E. Canfield (588698), Marc Chaussidon (588707), Stefan Bengtson (588697), Claire Rollion Bard (588700), Emma Hammarlund (588702), Olivier Rouxel (588715), François Gauthier-Lafaye (588712), Karim Benzerara (192895), Martin Whitehouse (588720)   +27 more
core   +1 more source

New insights into pyrite in the Western Mecsek uranium ore deposit: its morphology, invisible gold and trace element composition

Bulletin of the Mineral Research and Exploration
This study presents the occurrence of invisible gold and associated trace elements in pyrite from the Late Permian Kővágószőlős Sandstone Formation within the Western Mecsek uranium ore deposit, Hungary. Eight pyrite-rich drill-core samples were analyzed
Medet Junussov, Rustem Abirov, Gulnur Mekenbek, Aizada Assambayeva, Nessipzhan Mukhamediyarova   +4 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, D.A. Artemyev, V.A. Kotlyarov   +2 more
doaj  

Flotation Behavior of Complex Sulfide Ores in the Presence of Biodegradable Polymeric Depressants

International Journal of Polymer Science, 2017
In this study, chitosan polymer was tested as a potential selective green depressant of pyrite in the bulk flotation of galena (PbS) and chalcopyrite (CuFeS2) from sphalerite (ZnS) and pyrite (FeS2) using sodium isopropyl xanthate as a collector and 4 ...
Muhammad Badar Hayat, Lana Alagha, Syed Mohammad Sannan   +2 more
doaj   +1 more source

Controlled growth of uniform nanoflakes-built pyrite FeS2 microspheres and their electrochemical properties

, 2011
Nanoflakes-built pyrite FeS2 microspheres were synthesized through a simple solvothermal process in mixed solvents of N, N-dimethytformamide and ethylene glycol without using any surfactant.
Wu, Minghao, Wang, Qihua, Wang, Dewei, Wang, Tingmei, Chen, Jian, QihuaWang   +5 more
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The Pyrite and Marcasite Electrodes [PDF]

, 1965
Pyrite and marcasite may be used as the indicating electrode in neutralization reactions. In acid solution the pyrite and marcasite electrodes behave almost identically with the platinum electrode with differences arising (1) in the presence of strong ...
Diehl, Harvey, Pringle, David L.
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Occurrence Characteristics of Gold and the Typomorphic Characteristics of Pyrite in the Yizhuxiang Gold Deposit of the Daduhe Metallogenic Belt

Kuangchan zonghe liyong
[Objective] Orogenic gold deposit is widely developed in the Daduhe gold metallogenic belt. The Yizhuxiang gold deposit is one of the representative medium-sized deposits in the Daduhe gold metallogenic belt.
Haijun ZHANG, Tianqi MA, Wenhao ZHAO, Cuihua CHEN, Shuyue LIU, Xiaokong LIU, Rendong DENG   +6 more
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Flotation separation of pyrite and carbonate minerals from a carlin-type gold deposit in Guizhou by a new combined collector and its adsorption mechanism

Scientific Reports
Flotation is the most common method for effective separation of pyrite and carbonate minerals from Carlin-type gold deposits. The effect of conventional xanthate collector on flotation of a Carlin-type gold mine in Guizhou province is poor, and it can ...
Zhixiong Zhu, Guanghua Nie, Qiang Deng, Biyang Tuo, Tingsheng Qiu   +4 more
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Trace metal nanoparticles in pyrite

, 2011
Hydrothermal pyrite contains significant amounts of minor and trace elements including As, Pb, Sb, Bi, Cu, Co, Ni, Zn, Au, Ag, Se and Te, which can be incorporated into nanoparticles (NPs).
Rodney C. Ewing, Stephen E. Kesler, Kesler, S.E., Satoshi Utsunomiya, Deditius, A.P., John Walshe, Walshe, J., Utsunomiya, S., Ewing, R.C., Martin Reich, Hough, R., Artur P. Deditius, Robert Hough, Reich, M.   +13 more
core   +1 more source