Results 21 to 30 of about 1,914,211 (292)
Flotation enrichment of resistant gold ores [PDF]
E3S Web of Conferences, 2020 Ores of the Vasilkovsky deposit include arsenopyrite, pyrite, pyrrhotite, marcasite, gold, chalcopyrite, sphalerite, galena, faded ore (tennantite)S, bismuthine, native bismuth, lellingite, molybdenite, cubanite, bornite, antimonite, relict minerals ...
Askarova Gulzhan +2 more
doaj +1 more source
Minerals, 2020 The purpose of this study was to liberate gold from sulfide minerals in a gold concentrate through microwave-nitric acid leaching and to separate the light minerals in an insoluble residue using a hydro-separation process.
Kanghee Cho +2 more
semanticscholar +1 more source
Plants, 2022 In tropical forests of southern Ecuador, artisanal gold mining releases heavy metals that become xenobiotic with indefinite circulation and eventual bioaccumulation.
Irene Chamba-Eras +4 more
semanticscholar +1 more source
HEAVY CONCENTRATE GOLD ASSOCIATIONS IN THE BASIN OF THE KUKULKINDZHA CREEK (OKHOTSK REGION OF THE KHABAROVSK KRAI) [PDF]
МинералогияThis article highlights an insufficiently studied issue of a primary source of placer gold in alluvium of the basin of the Kukulkindzha Creek (Okhotsk region, Khabarovsk krai) be means of the analysis of mineralogical and geochemical features of samples.
A.Ya. Nefedova +5 more
doaj +1 more source
Open Geosciences, 2023 The Miocene tectonics of Papua New Guinea, where subduction, arc-continent collision, and changes in subduction direction are considered to have occurred, is very complex and various tectonic models have been proposed.
Hoshide Takashi +2 more
doaj +1 more source
Mineralogical Factors Affecting Beneficiation-Metallurgy of a Gold Deposit in Africa
Kuangchan zonghe liyong, 2023 This is an essay in the field of process mineralogy. Systematic process mineralogy has been done in this study, focusing on a gold deposit in Africa, using automatic mineral analysis system (i.e. AMICS, MLA) combined with optical microscopy.
Lei Li +4 more
doaj +1 more source
Preparation and evaluation of the exotoxin A nano-gold conjugate as a vaccine candidate for Pseudomonas aeruginosa infections [PDF]
Iranian Journal of Basic Medical Sciences, 2021 Objective(s): Pseudomonas aeruginosa is an opportunistic pathogen that is an important cause of nosocomial infections. This bacterium produces various virulence factors, among which exotoxin A is significantly involved in mortality and morbidity. In this
Masoumeh Abbasi +4 more
doaj +1 more source
Литосфера, 2020 Research subject. The paper presents data on the mineralogical, geochemical and fluid inclusion features of the Southern Ak-Dag gold-sulphide-quartz ore occurrence in Western Tuva.Methods.
N. N. Ankusheva, R. V. Kuzhuget
doaj +1 more source
Gold Binding by Native and Chemically ModifiedHops Biomasses [PDF]
Bioinorganic Chemistry and Applications, 2005 Heavy metals from mining, smelting operations and other industrial processing facilities pollute wastewaters worldwide. Extraction of metals from industrial effluents has been widely studied due to the economic advantages and the relative ease of technical implementation.
López, M. Laura +7 more
openaire +2 more sources