Results 71 to 80 of about 13,713 (230)

Research Status and Prospect of Flotation Separation of a Copper-lead Sulfide Ore

open access: yesKuangchan zonghe liyong
The separation of copper and lead is one of the technical difficulties in complex sulfide ore beneficiation. On the basis of analyzing the general situation of copper-lead sulfide ore resources and the characteristics of mineral composition, this paper ...
Ruikang WANG   +3 more
doaj   +1 more source

Electrochemical Analysis of Galena Reactivity in Typical Physicochemical Conditions of Calcareous Soils

open access: yesInternational Journal of Electrochemical Science, 2016
A proposal methodology using electrochemical techniques and carbon paste electrodes (CPE) were applied to evaluate the oxidation mechanisms of galena and identify secondary species on its surface, in a medium that simulates typical physicochemical ...
G. Urbano   +3 more
doaj   +1 more source

Recrystallization of galena on heating

open access: yesThe Journal of the Japanese Association of Mineralogists, Petrologists and Economic Geologists, 1961
The author have investigated the crystallinity of galena by means of x-ray spectrometer. It was found that galena showed structural plasticity on heating and grinding. The main results obtained were as follows: (1) Recrystallization of galena on gentle heating was clearly observed from diffraction peak profile, and the crystallinity was increased in ...
openaire   +2 more sources

Selective Flotation of Galena from Sphalerite Using a Combination of Kmno4 and Carboxylated Chitosan

open access: yesSocial Science Research Network, 2022
Yuangan Chen   +3 more
semanticscholar   +1 more source

APLIKASI METODE GEOLISTRIK RESISTIVITAS KONFIGURASI DIPOLE-DIPOLE UNTUK IDENTIVIKASI POTENSI SEBARAN GALENA (PBS) DAERAH-X, KABUPATEN WONOGIRI

open access: yesJurnal Fisika Flux, 2017
ABSTRAK. Telah dilakukan penelitian identifikasi potensi galena menggunakan metode geolistrik resistivitas konfigurasi dipole-dipole di Daerah-X, Kabupaten Wonogiri, Jawa Tengah.
Satria Kinayung   +2 more
doaj  

Treatment of periocular hyperpigmentation due to lead of kohl (surma) by penicillamine: A single group non-randomized clinical trial

open access: yesIndian Journal of Dermatology, 2009
Background: Periocular hyperpigmentation is a condition in which skin of eyelids become darker in color than the normal surrounding skin. Lead and other heavy metals produce increased pigmentation because of deposition of metal particles in the dermis ...
El Safoury Omar   +2 more
doaj  

Silver geochemistry and isotope systematics in Ag-rich mine tailings from Namibia

open access: yesSoil and Water Research
In this study, we present a detailed geochemical characterisation and stable isotope systematics of silver (Ag) in a mining waste facility at the Namib Lead & Zinc mine in Namibia (Africa).
Aleš Vaněk   +8 more
doaj   +1 more source

Quantitative leaching of galena

open access: yesBulletin of the Chemical Society of Ethiopia, 2000
Abstract (Received September 25, 1999; revised January 19, 2000) Experiments on the quantitative leaching of lead from galena in hydrochloric acid solutions are reported. The effects of contact time, acid concentration, number of leaching stages, solid to liquid ratio, particle size, temperature, and stirring speed, on the leaching reaction are ...
openaire   +4 more sources

Electrochemistry and DFT study of galvanic interaction on the surface of monoclinic pyrrhotite (001) and galena (100)

open access: yesInternational Journal of Mining Science and Technology
The electrochemical interaction between galena and monoclinic pyrrhotite was investigated to examine its impact on the physical and chemical properties of the mineral micro-surface.
Tingsheng Qiu   +6 more
doaj   +1 more source

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