Results 31 to 40 of about 56,332 (307)
Results in Surfaces and InterfacesThis work investigated the effects of NaCl addition on galena flotation in the presence of xanthate. The micro-flotation experiments were performed using NaCl solutions which also included xanthate, at pH 9 (±0.1).
Anna M. Nowosielska +2 more
doaj +1 more source
A new stylolite classification scheme to estimate compaction and local permeability variations [PDF]
, 2017 This study was carried out within the framework of DGMK (German Society for Petroleum and Coal Science and Technology) research project 718 “Mineral Vein Dynamics Modeling”, which is funded by the companies ExxonMobil Production Deutschland GmbH, GDF ...
Beaudoin, Nicolas +5 more
core +1 more source
Study on the flotation technology and adsorption mechanism of galena–jamesonite separation
International Journal of Mining Science and Technology, 2015 In order to further separate the concentrate containing galena and jamesonite before undergoing hydrometallurgical process, flotation experiment was performed on the basis of mineralogical analysis.
Wei Sun +3 more
doaj +1 more source
Antimony Extraction from Galena Concentrates
Materials Proceedings, 2022 The extraction of antimony and arsenic from galena concentrates by leaching with strongly alkaline sodium sulphide solution are investigated. The effects of leaching parameters including sodium sulphide and sodium hydroxide concentrations in the leaching
Rafaella Aikaterini Megaloudi +5 more
doaj +1 more source
Investigation on a Novel Galena Depressant in the Flotation Separation from Molybdenite
Minerals, 2021 In this study, a novel organic depressant maleyl 5-amino-1,3,4-thiadiazole-2-thiol (MATT) was synthesized and utilized as a galena depressant in the flotation separation of molybdenite and galena.
Yangjia Hu +8 more
semanticscholar +1 more source
Comparative analysis of spring flood risk reduction measures in Alaska, United States and the Sakha Republic, Russia [PDF]
, 2017 Thesis (Ph.D.) University of Alaska Fairbanks, 2017River ice thaw and breakup are an annual springtime phenomena in the North. Depending on regional weather patterns and river morphology, breakups can result in catastrophic floods in exposed and ...
Kontar, Yekaterina Yevgenevna +1 more
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Minerals, 2021 Tetrathionates have been found in significantly high concentrations in recycled process waters from massive sulphide ore processing plants. These polythionates react with xanthate added to flotation pulps thus reducing xanthate dosages in solution ...
N. Mhonde +3 more
semanticscholar +1 more source
The Provenance of Silver in the Viking‐Age Hoard From Bedale, North Yorkshire
Archaeometry, EarlyView.ABSTRACT The acquisition of silver was a key motive propelling the Viking expansion out of Scandinavia; identifying the sources of Viking silver during the early part of the Viking Age can provide critical insights into the relative significance of western European and eastern, Islamic wealth in the Viking expansion.
Jane Kershaw +5 more
wiley +1 more source
Archaeometry, EarlyView.ABSTRACT This study presents multifaceted analyses of metal artefacts from the Jodłowno Hoard (Northern Poland), revealing that the metal originated from Iberian polymetallic ore deposits. Transported as raw ingots via Atlantic maritime routes, this copper was reworked locally into regionally distinctive forms.
K. Nowak +4 more
wiley +1 more source
Ferric chloride leaching of the Delta sulfide ores and gold extraction from the leaching residue [PDF]
, 1988 Conventional differential and bulk flotation processes have difficulties in achieving high recoveries with acceptable grades far zinc, lead and copper from the complex sulfide ores found at Tok, Alaska.
Lin, H.K., Rao, P.D.
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